Is there any reason not to eat food that's been dropped on the surface of the moon?
$begingroup$
Are there any kind of contaminants or other reasons that might be dangerous? I'd assume that as far as microbes/bacteria goes, eating off the ground on the moon is much safer than it would be on earth.
space
asked 15 hours ago
VigléViglé
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show 12 more comments
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Are there any kind of contaminants or other reasons that might be dangerous? I'd assume that as far as microbes/bacteria goes, eating off the ground on the moon is much safer than it would be on earth.
space
asked 15 hours ago
VigléViglé
13113
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Viglé is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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4
$begingroup$
I am assuming you mean on the surface of the moon proper, not on the surface of whatever dome has been erected - which leaves me with the question: how did the food get there? Why does an astronaut have any food outside her suit? How will you eat it if you pick it up? ----- But apart from that: The surface is scoured by unfiltered sunlight, and completely inert, so yes, it would be safe.
$endgroup$
– bukwyrm
15 hours ago
11
$begingroup$
@bukwyrm no food is going to be clean when picked up, and the moon is covered in silcia dust.... In the words of the guy from 'Will it Blend' -- Don't eat this.
$endgroup$
– djsmiley2k
13 hours ago
3
$begingroup$
@djsmiley2k you are talking to the survivor of ingesting at least 100 g of silica (including fine dust) during my active career in the kindergarden's sandlot.
$endgroup$
– bukwyrm
13 hours ago
6
$begingroup$
Much safer than on Earth. Lunar gravity is lower, which means that the food takes longer to fall to the ground. This means that, from the moment you notice that the food is falling, you have more time to pick it up before the ten-second rule is violated. 😉
$endgroup$
– David Richerby
12 hours ago
2
$begingroup$
I think my mother would be rather annoyed if I 1) Ate food off the ground, 2) Offered other folks food to eat that had been on the ground, and 3) Carried my lunch around in an open container so it fell onto the ground in the first place. All her years of careful nurturing wasted!
$endgroup$
– user535733
12 hours ago
|
show 12 more comments
$begingroup$
Are there any kind of contaminants or other reasons that might be dangerous? I'd assume that as far as microbes/bacteria goes, eating off the ground on the moon is much safer than it would be on earth.
space
asked 15 hours ago
VigléViglé
13113
New contributor
Viglé is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
Are there any kind of contaminants or other reasons that might be dangerous? I'd assume that as far as microbes/bacteria goes, eating off the ground on the moon is much safer than it would be on earth.
space
space
asked 15 hours ago
VigléViglé
13113
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Viglé is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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asked 15 hours ago
VigléViglé
13113
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asked 15 hours ago
VigléViglé
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asked 15 hours ago
VigléViglé
13113
asked 15 hours ago
VigléViglé
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13113
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4
$begingroup$
I am assuming you mean on the surface of the moon proper, not on the surface of whatever dome has been erected - which leaves me with the question: how did the food get there? Why does an astronaut have any food outside her suit? How will you eat it if you pick it up? ----- But apart from that: The surface is scoured by unfiltered sunlight, and completely inert, so yes, it would be safe.
$endgroup$
– bukwyrm
15 hours ago
11
$begingroup$
@bukwyrm no food is going to be clean when picked up, and the moon is covered in silcia dust.... In the words of the guy from 'Will it Blend' -- Don't eat this.
$endgroup$
– djsmiley2k
13 hours ago
3
$begingroup$
@djsmiley2k you are talking to the survivor of ingesting at least 100 g of silica (including fine dust) during my active career in the kindergarden's sandlot.
$endgroup$
– bukwyrm
13 hours ago
6
$begingroup$
Much safer than on Earth. Lunar gravity is lower, which means that the food takes longer to fall to the ground. This means that, from the moment you notice that the food is falling, you have more time to pick it up before the ten-second rule is violated. 😉
$endgroup$
– David Richerby
12 hours ago
2
$begingroup$
I think my mother would be rather annoyed if I 1) Ate food off the ground, 2) Offered other folks food to eat that had been on the ground, and 3) Carried my lunch around in an open container so it fell onto the ground in the first place. All her years of careful nurturing wasted!
$endgroup$
– user535733
12 hours ago
|
show 12 more comments
4
$begingroup$
I am assuming you mean on the surface of the moon proper, not on the surface of whatever dome has been erected - which leaves me with the question: how did the food get there? Why does an astronaut have any food outside her suit? How will you eat it if you pick it up? ----- But apart from that: The surface is scoured by unfiltered sunlight, and completely inert, so yes, it would be safe.
$endgroup$
– bukwyrm
15 hours ago
11
$begingroup$
@bukwyrm no food is going to be clean when picked up, and the moon is covered in silcia dust.... In the words of the guy from 'Will it Blend' -- Don't eat this.
$endgroup$
– djsmiley2k
13 hours ago
3
$begingroup$
@djsmiley2k you are talking to the survivor of ingesting at least 100 g of silica (including fine dust) during my active career in the kindergarden's sandlot.
$endgroup$
– bukwyrm
13 hours ago
6
$begingroup$
Much safer than on Earth. Lunar gravity is lower, which means that the food takes longer to fall to the ground. This means that, from the moment you notice that the food is falling, you have more time to pick it up before the ten-second rule is violated. 😉
$endgroup$
– David Richerby
12 hours ago
2
$begingroup$
I think my mother would be rather annoyed if I 1) Ate food off the ground, 2) Offered other folks food to eat that had been on the ground, and 3) Carried my lunch around in an open container so it fell onto the ground in the first place. All her years of careful nurturing wasted!
$endgroup$
– user535733
12 hours ago
4
4
$begingroup$
I am assuming you mean on the surface of the moon proper, not on the surface of whatever dome has been erected - which leaves me with the question: how did the food get there? Why does an astronaut have any food outside her suit? How will you eat it if you pick it up? ----- But apart from that: The surface is scoured by unfiltered sunlight, and completely inert, so yes, it would be safe.
$endgroup$
– bukwyrm
15 hours ago
$begingroup$
I am assuming you mean on the surface of the moon proper, not on the surface of whatever dome has been erected - which leaves me with the question: how did the food get there? Why does an astronaut have any food outside her suit? How will you eat it if you pick it up? ----- But apart from that: The surface is scoured by unfiltered sunlight, and completely inert, so yes, it would be safe.
$endgroup$
– bukwyrm
15 hours ago
11
11
$begingroup$
@bukwyrm no food is going to be clean when picked up, and the moon is covered in silcia dust.... In the words of the guy from 'Will it Blend' -- Don't eat this.
$endgroup$
– djsmiley2k
13 hours ago
$begingroup$
@bukwyrm no food is going to be clean when picked up, and the moon is covered in silcia dust.... In the words of the guy from 'Will it Blend' -- Don't eat this.
$endgroup$
– djsmiley2k
13 hours ago
3
3
$begingroup$
@djsmiley2k you are talking to the survivor of ingesting at least 100 g of silica (including fine dust) during my active career in the kindergarden's sandlot.
$endgroup$
– bukwyrm
13 hours ago
$begingroup$
@djsmiley2k you are talking to the survivor of ingesting at least 100 g of silica (including fine dust) during my active career in the kindergarden's sandlot.
$endgroup$
– bukwyrm
13 hours ago
6
6
$begingroup$
Much safer than on Earth. Lunar gravity is lower, which means that the food takes longer to fall to the ground. This means that, from the moment you notice that the food is falling, you have more time to pick it up before the ten-second rule is violated. 😉
$endgroup$
– David Richerby
12 hours ago
$begingroup$
Much safer than on Earth. Lunar gravity is lower, which means that the food takes longer to fall to the ground. This means that, from the moment you notice that the food is falling, you have more time to pick it up before the ten-second rule is violated. 😉
$endgroup$
– David Richerby
12 hours ago
2
2
$begingroup$
I think my mother would be rather annoyed if I 1) Ate food off the ground, 2) Offered other folks food to eat that had been on the ground, and 3) Carried my lunch around in an open container so it fell onto the ground in the first place. All her years of careful nurturing wasted!
$endgroup$
– user535733
12 hours ago
$begingroup$
I think my mother would be rather annoyed if I 1) Ate food off the ground, 2) Offered other folks food to eat that had been on the ground, and 3) Carried my lunch around in an open container so it fell onto the ground in the first place. All her years of careful nurturing wasted!
$endgroup$
– user535733
12 hours ago
|
show 12 more comments
3 Answers
3
active
oldest
votes
$begingroup$
Lunar regolith/soil/dust is probably rather nasty stuff to ingest.
Where the dust on earth has been whirled about in air currents and rounded off, lunar dust is quite sharp and abrasive. It's similar to the difference between pebbles that have been rounded by water in rivers and coastlines, and regular uneroded rocks. This is true even for the finest of particles.
If you scroll down to the 'harmful effects' section of the linked wiki page, it details some of the problems if you breathe it in (effects similar to silicosis). While your digestive tract is largely a little sturdier than your lungs when it comes to ingesting stuff you shouldn't, I doubt eating significant quantities of what amounts to glass dust would do you much good.
Edit: turns out it's even nastier!
As @TomášZato mentions in the comments, lunar dust also has a significant amount of unreacted molecules and compounds in it. On earth, these have usually reacted a long time ago and are now inert. Needless to say, ingesting particles of reactive matter is also not recommended.
answered 15 hours ago
YnneadwraithYnneadwraith
5,04611428
$endgroup$
19
$begingroup$
"Moon dust! The new craze is here: Internal scrub! Clean your system from the inside out!* *Warning: Effects might be permanent
$endgroup$
– Martijn
15 hours ago
38
$begingroup$
"The bean counters told me we literally could not afford to buy seven dollars worth of moon rocks, much less seventy million. Bought 'em anyway. Ground 'em up, mixed em into a gel." ref "And guess what? Ground up moon rocks are pure poison. I am deathly ill." ref
$endgroup$
– Baldrickk
14 hours ago
9
$begingroup$
@Baldrickk "Still, turns out they're a great portal conductor."
$endgroup$
– Ynneadwraith
14 hours ago
10
$begingroup$
@Ynneadwraith indeed. When life gives you lemons, don't make lemonade, make life take the lemons back! (especially prudent advice when covered in lunar regolith)
$endgroup$
– Baldrickk
14 hours ago
6
$begingroup$
@bukwyrm It's not the large bits that we're worried about. It's the dust. The fine abrasive particles that would coat the food and be very difficult to wholly remove (judging by the experience of cleaning astronauts EV suits). Not strictly deadly in tiny quantities, but still not something you want to be regularly ingesting (much like glass dust). Active coal may not be terribly problematic, but that doesn't mean ingesting things like elemental phosphorus, sodium, potassium and manganese are a great idea.
$endgroup$
– Ynneadwraith
13 hours ago
|
show 5 more comments
$begingroup$
Brush it off, eat it.
Of course there are trace amounts of elements present that are potentially harmful, but the bulk is made up of benign stuff: 50% SiO2, 15% Al2O3, 10% CaO, 10% MgO, 5% TiO2 and 5-15% iron. There will be no microorganisms, no parasites, no viruses, no higher organic poisons. there will be mostly sand-like stuff.
About the trace amounts of less cheerful stuff: Consider how much regolith will remain on your dropped sand(ha!)wich - One gram would be much even if you rolled it around in the stuff. Say 1/1000th of that is Chromium (it is not), and pretend all of that then proceeds to villainly oxidise into hexavalent Chromium (the deadly stuff) instead of trivalent Chromium (the vitally important stuff). LD50 for hexavalent Chromium is 50-150 mg/kg ... And you just now ingested .01 mg/kg (if you weigh 100kg). You are safe (but don't make a habit out of it!)
The sharp edges of the stuff will not be an issue either: very large shards of freshly broken glass pose a hazard to your digestive tract, but anything on the scale of 'stuff clinging to your sandwich' does not. If you bite off a shard off a glass of water (as children sometimes do) many emergency personnel will only intervene by making them eat some bread afterwards. It all gets buffered by the slime.
Of course it's not Best Practices to eat stuff from the ground, but a little regolith won't hurt.
answered 13 hours ago
bukwyrmbukwyrm
3,886723
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4
$begingroup$
It is my understanding that one of the Apollo 17 (?) astronauts was accidently exposed to a small amount of regolith and developed a significant rash from it. If I can find a reference, I'll add it, but even if not, I would not be so blythe as to just assume it cannot be harmful.
$endgroup$
– Paul Sinclair
12 hours ago
1
$begingroup$
@PaulSinclair i listed the bulk ingredients. If you have a Zn allergy and/or get the stuff in your breeches you might have a bad time. Point is OP asked about dropped food, not snuffing it, eating bulk amounts, rubbing yourself with it or any other regolith based abuse. If you can point to a compound that is critical in the amounts ingested (ppm in bolus of 1 g) and probable to exist in Regolith, go ahead.
$endgroup$
– bukwyrm
11 hours ago
3
$begingroup$
@bukwyrm - As I understand it (again, I'll have to do some searching to find the reference and confirm or deny my memory), the rash was not cause allergens or toxicity, but rather the skin irritation from the jagged dust.
$endgroup$
– Paul Sinclair
11 hours ago
3
$begingroup$
You'd have to have some pretty through cleaning methods for 'brushing it off' before eating that food. It's possible, but moon dust is difficult to get off of stuff. blogs.discovermagazine.com/d-brief/2018/03/02/lunar-dust
$endgroup$
– Zibbobz
11 hours ago
2
$begingroup$
@bukwyrm no you are right powdered glass does not appear to be as destructive as I thought. Hoever it does depend on the size of the particles fda.gov/downloads/Food/GuidanceRegulation/UCM252441.pdf
$endgroup$
– Slarty
11 hours ago
|
show 3 more comments
$begingroup$
It'll break your teeth. The moon is often very cold or very hot on the surface. The sandwich has potentially been flash-frozen or is now burnt depending on where it dropped.
answered 8 hours ago
liljoshuliljoshu
1,623311
$endgroup$
2
$begingroup$
IIRC, day side gets to over 200° F. Might be more concerned about burning your tongue.
$endgroup$
– A C
8 hours ago
$begingroup$
Also true. I'll update the answer.
$endgroup$
– liljoshu
7 hours ago
add a comment |
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3 Answers
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3 Answers
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$begingroup$
Lunar regolith/soil/dust is probably rather nasty stuff to ingest.
Where the dust on earth has been whirled about in air currents and rounded off, lunar dust is quite sharp and abrasive. It's similar to the difference between pebbles that have been rounded by water in rivers and coastlines, and regular uneroded rocks. This is true even for the finest of particles.
If you scroll down to the 'harmful effects' section of the linked wiki page, it details some of the problems if you breathe it in (effects similar to silicosis). While your digestive tract is largely a little sturdier than your lungs when it comes to ingesting stuff you shouldn't, I doubt eating significant quantities of what amounts to glass dust would do you much good.
Edit: turns out it's even nastier!
As @TomášZato mentions in the comments, lunar dust also has a significant amount of unreacted molecules and compounds in it. On earth, these have usually reacted a long time ago and are now inert. Needless to say, ingesting particles of reactive matter is also not recommended.
answered 15 hours ago
YnneadwraithYnneadwraith
5,04611428
$endgroup$
19
$begingroup$
"Moon dust! The new craze is here: Internal scrub! Clean your system from the inside out!* *Warning: Effects might be permanent
$endgroup$
– Martijn
15 hours ago
38
$begingroup$
"The bean counters told me we literally could not afford to buy seven dollars worth of moon rocks, much less seventy million. Bought 'em anyway. Ground 'em up, mixed em into a gel." ref "And guess what? Ground up moon rocks are pure poison. I am deathly ill." ref
$endgroup$
– Baldrickk
14 hours ago
9
$begingroup$
@Baldrickk "Still, turns out they're a great portal conductor."
$endgroup$
– Ynneadwraith
14 hours ago
10
$begingroup$
@Ynneadwraith indeed. When life gives you lemons, don't make lemonade, make life take the lemons back! (especially prudent advice when covered in lunar regolith)
$endgroup$
– Baldrickk
14 hours ago
6
$begingroup$
@bukwyrm It's not the large bits that we're worried about. It's the dust. The fine abrasive particles that would coat the food and be very difficult to wholly remove (judging by the experience of cleaning astronauts EV suits). Not strictly deadly in tiny quantities, but still not something you want to be regularly ingesting (much like glass dust). Active coal may not be terribly problematic, but that doesn't mean ingesting things like elemental phosphorus, sodium, potassium and manganese are a great idea.
$endgroup$
– Ynneadwraith
13 hours ago
|
show 5 more comments
$begingroup$
Lunar regolith/soil/dust is probably rather nasty stuff to ingest.
Where the dust on earth has been whirled about in air currents and rounded off, lunar dust is quite sharp and abrasive. It's similar to the difference between pebbles that have been rounded by water in rivers and coastlines, and regular uneroded rocks. This is true even for the finest of particles.
If you scroll down to the 'harmful effects' section of the linked wiki page, it details some of the problems if you breathe it in (effects similar to silicosis). While your digestive tract is largely a little sturdier than your lungs when it comes to ingesting stuff you shouldn't, I doubt eating significant quantities of what amounts to glass dust would do you much good.
Edit: turns out it's even nastier!
As @TomášZato mentions in the comments, lunar dust also has a significant amount of unreacted molecules and compounds in it. On earth, these have usually reacted a long time ago and are now inert. Needless to say, ingesting particles of reactive matter is also not recommended.
answered 15 hours ago
YnneadwraithYnneadwraith
5,04611428
$endgroup$
19
$begingroup$
"Moon dust! The new craze is here: Internal scrub! Clean your system from the inside out!* *Warning: Effects might be permanent
$endgroup$
– Martijn
15 hours ago
38
$begingroup$
"The bean counters told me we literally could not afford to buy seven dollars worth of moon rocks, much less seventy million. Bought 'em anyway. Ground 'em up, mixed em into a gel." ref "And guess what? Ground up moon rocks are pure poison. I am deathly ill." ref
$endgroup$
– Baldrickk
14 hours ago
9
$begingroup$
@Baldrickk "Still, turns out they're a great portal conductor."
$endgroup$
– Ynneadwraith
14 hours ago
10
$begingroup$
@Ynneadwraith indeed. When life gives you lemons, don't make lemonade, make life take the lemons back! (especially prudent advice when covered in lunar regolith)
$endgroup$
– Baldrickk
14 hours ago
6
$begingroup$
@bukwyrm It's not the large bits that we're worried about. It's the dust. The fine abrasive particles that would coat the food and be very difficult to wholly remove (judging by the experience of cleaning astronauts EV suits). Not strictly deadly in tiny quantities, but still not something you want to be regularly ingesting (much like glass dust). Active coal may not be terribly problematic, but that doesn't mean ingesting things like elemental phosphorus, sodium, potassium and manganese are a great idea.
$endgroup$
– Ynneadwraith
13 hours ago
|
show 5 more comments
$begingroup$
Lunar regolith/soil/dust is probably rather nasty stuff to ingest.
Where the dust on earth has been whirled about in air currents and rounded off, lunar dust is quite sharp and abrasive. It's similar to the difference between pebbles that have been rounded by water in rivers and coastlines, and regular uneroded rocks. This is true even for the finest of particles.
If you scroll down to the 'harmful effects' section of the linked wiki page, it details some of the problems if you breathe it in (effects similar to silicosis). While your digestive tract is largely a little sturdier than your lungs when it comes to ingesting stuff you shouldn't, I doubt eating significant quantities of what amounts to glass dust would do you much good.
Edit: turns out it's even nastier!
As @TomášZato mentions in the comments, lunar dust also has a significant amount of unreacted molecules and compounds in it. On earth, these have usually reacted a long time ago and are now inert. Needless to say, ingesting particles of reactive matter is also not recommended.
answered 15 hours ago
YnneadwraithYnneadwraith
5,04611428
$endgroup$
Lunar regolith/soil/dust is probably rather nasty stuff to ingest.
Where the dust on earth has been whirled about in air currents and rounded off, lunar dust is quite sharp and abrasive. It's similar to the difference between pebbles that have been rounded by water in rivers and coastlines, and regular uneroded rocks. This is true even for the finest of particles.
If you scroll down to the 'harmful effects' section of the linked wiki page, it details some of the problems if you breathe it in (effects similar to silicosis). While your digestive tract is largely a little sturdier than your lungs when it comes to ingesting stuff you shouldn't, I doubt eating significant quantities of what amounts to glass dust would do you much good.
Edit: turns out it's even nastier!
As @TomášZato mentions in the comments, lunar dust also has a significant amount of unreacted molecules and compounds in it. On earth, these have usually reacted a long time ago and are now inert. Needless to say, ingesting particles of reactive matter is also not recommended.
answered 15 hours ago
YnneadwraithYnneadwraith
5,04611428
edited 14 hours ago
answered 15 hours ago
YnneadwraithYnneadwraith
5,04611428
answered 15 hours ago
YnneadwraithYnneadwraith
5,04611428
answered 15 hours ago
YnneadwraithYnneadwraith
5,04611428
5,04611428
19
$begingroup$
"Moon dust! The new craze is here: Internal scrub! Clean your system from the inside out!* *Warning: Effects might be permanent
$endgroup$
– Martijn
15 hours ago
38
$begingroup$
"The bean counters told me we literally could not afford to buy seven dollars worth of moon rocks, much less seventy million. Bought 'em anyway. Ground 'em up, mixed em into a gel." ref "And guess what? Ground up moon rocks are pure poison. I am deathly ill." ref
$endgroup$
– Baldrickk
14 hours ago
9
$begingroup$
@Baldrickk "Still, turns out they're a great portal conductor."
$endgroup$
– Ynneadwraith
14 hours ago
10
$begingroup$
@Ynneadwraith indeed. When life gives you lemons, don't make lemonade, make life take the lemons back! (especially prudent advice when covered in lunar regolith)
$endgroup$
– Baldrickk
14 hours ago
6
$begingroup$
@bukwyrm It's not the large bits that we're worried about. It's the dust. The fine abrasive particles that would coat the food and be very difficult to wholly remove (judging by the experience of cleaning astronauts EV suits). Not strictly deadly in tiny quantities, but still not something you want to be regularly ingesting (much like glass dust). Active coal may not be terribly problematic, but that doesn't mean ingesting things like elemental phosphorus, sodium, potassium and manganese are a great idea.
$endgroup$
– Ynneadwraith
13 hours ago
|
show 5 more comments
19
$begingroup$
"Moon dust! The new craze is here: Internal scrub! Clean your system from the inside out!* *Warning: Effects might be permanent
$endgroup$
– Martijn
15 hours ago
38
$begingroup$
"The bean counters told me we literally could not afford to buy seven dollars worth of moon rocks, much less seventy million. Bought 'em anyway. Ground 'em up, mixed em into a gel." ref "And guess what? Ground up moon rocks are pure poison. I am deathly ill." ref
$endgroup$
– Baldrickk
14 hours ago
9
$begingroup$
@Baldrickk "Still, turns out they're a great portal conductor."
$endgroup$
– Ynneadwraith
14 hours ago
10
$begingroup$
@Ynneadwraith indeed. When life gives you lemons, don't make lemonade, make life take the lemons back! (especially prudent advice when covered in lunar regolith)
$endgroup$
– Baldrickk
14 hours ago
6
$begingroup$
@bukwyrm It's not the large bits that we're worried about. It's the dust. The fine abrasive particles that would coat the food and be very difficult to wholly remove (judging by the experience of cleaning astronauts EV suits). Not strictly deadly in tiny quantities, but still not something you want to be regularly ingesting (much like glass dust). Active coal may not be terribly problematic, but that doesn't mean ingesting things like elemental phosphorus, sodium, potassium and manganese are a great idea.
$endgroup$
– Ynneadwraith
13 hours ago
19
19
$begingroup$
"Moon dust! The new craze is here: Internal scrub! Clean your system from the inside out!* *Warning: Effects might be permanent
$endgroup$
– Martijn
15 hours ago
$begingroup$
"Moon dust! The new craze is here: Internal scrub! Clean your system from the inside out!* *Warning: Effects might be permanent
$endgroup$
– Martijn
15 hours ago
38
38
$begingroup$
"The bean counters told me we literally could not afford to buy seven dollars worth of moon rocks, much less seventy million. Bought 'em anyway. Ground 'em up, mixed em into a gel." ref "And guess what? Ground up moon rocks are pure poison. I am deathly ill." ref
$endgroup$
– Baldrickk
14 hours ago
$begingroup$
"The bean counters told me we literally could not afford to buy seven dollars worth of moon rocks, much less seventy million. Bought 'em anyway. Ground 'em up, mixed em into a gel." ref "And guess what? Ground up moon rocks are pure poison. I am deathly ill." ref
$endgroup$
– Baldrickk
14 hours ago
9
9
$begingroup$
@Baldrickk "Still, turns out they're a great portal conductor."
$endgroup$
– Ynneadwraith
14 hours ago
$begingroup$
@Baldrickk "Still, turns out they're a great portal conductor."
$endgroup$
– Ynneadwraith
14 hours ago
10
10
$begingroup$
@Ynneadwraith indeed. When life gives you lemons, don't make lemonade, make life take the lemons back! (especially prudent advice when covered in lunar regolith)
$endgroup$
– Baldrickk
14 hours ago
$begingroup$
@Ynneadwraith indeed. When life gives you lemons, don't make lemonade, make life take the lemons back! (especially prudent advice when covered in lunar regolith)
$endgroup$
– Baldrickk
14 hours ago
6
6
$begingroup$
@bukwyrm It's not the large bits that we're worried about. It's the dust. The fine abrasive particles that would coat the food and be very difficult to wholly remove (judging by the experience of cleaning astronauts EV suits). Not strictly deadly in tiny quantities, but still not something you want to be regularly ingesting (much like glass dust). Active coal may not be terribly problematic, but that doesn't mean ingesting things like elemental phosphorus, sodium, potassium and manganese are a great idea.
$endgroup$
– Ynneadwraith
13 hours ago
$begingroup$
@bukwyrm It's not the large bits that we're worried about. It's the dust. The fine abrasive particles that would coat the food and be very difficult to wholly remove (judging by the experience of cleaning astronauts EV suits). Not strictly deadly in tiny quantities, but still not something you want to be regularly ingesting (much like glass dust). Active coal may not be terribly problematic, but that doesn't mean ingesting things like elemental phosphorus, sodium, potassium and manganese are a great idea.
$endgroup$
– Ynneadwraith
13 hours ago
|
show 5 more comments
$begingroup$
Brush it off, eat it.
Of course there are trace amounts of elements present that are potentially harmful, but the bulk is made up of benign stuff: 50% SiO2, 15% Al2O3, 10% CaO, 10% MgO, 5% TiO2 and 5-15% iron. There will be no microorganisms, no parasites, no viruses, no higher organic poisons. there will be mostly sand-like stuff.
About the trace amounts of less cheerful stuff: Consider how much regolith will remain on your dropped sand(ha!)wich - One gram would be much even if you rolled it around in the stuff. Say 1/1000th of that is Chromium (it is not), and pretend all of that then proceeds to villainly oxidise into hexavalent Chromium (the deadly stuff) instead of trivalent Chromium (the vitally important stuff). LD50 for hexavalent Chromium is 50-150 mg/kg ... And you just now ingested .01 mg/kg (if you weigh 100kg). You are safe (but don't make a habit out of it!)
The sharp edges of the stuff will not be an issue either: very large shards of freshly broken glass pose a hazard to your digestive tract, but anything on the scale of 'stuff clinging to your sandwich' does not. If you bite off a shard off a glass of water (as children sometimes do) many emergency personnel will only intervene by making them eat some bread afterwards. It all gets buffered by the slime.
Of course it's not Best Practices to eat stuff from the ground, but a little regolith won't hurt.
answered 13 hours ago
bukwyrmbukwyrm
3,886723
$endgroup$
4
$begingroup$
It is my understanding that one of the Apollo 17 (?) astronauts was accidently exposed to a small amount of regolith and developed a significant rash from it. If I can find a reference, I'll add it, but even if not, I would not be so blythe as to just assume it cannot be harmful.
$endgroup$
– Paul Sinclair
12 hours ago
1
$begingroup$
@PaulSinclair i listed the bulk ingredients. If you have a Zn allergy and/or get the stuff in your breeches you might have a bad time. Point is OP asked about dropped food, not snuffing it, eating bulk amounts, rubbing yourself with it or any other regolith based abuse. If you can point to a compound that is critical in the amounts ingested (ppm in bolus of 1 g) and probable to exist in Regolith, go ahead.
$endgroup$
– bukwyrm
11 hours ago
3
$begingroup$
@bukwyrm - As I understand it (again, I'll have to do some searching to find the reference and confirm or deny my memory), the rash was not cause allergens or toxicity, but rather the skin irritation from the jagged dust.
$endgroup$
– Paul Sinclair
11 hours ago
3
$begingroup$
You'd have to have some pretty through cleaning methods for 'brushing it off' before eating that food. It's possible, but moon dust is difficult to get off of stuff. blogs.discovermagazine.com/d-brief/2018/03/02/lunar-dust
$endgroup$
– Zibbobz
11 hours ago
2
$begingroup$
@bukwyrm no you are right powdered glass does not appear to be as destructive as I thought. Hoever it does depend on the size of the particles fda.gov/downloads/Food/GuidanceRegulation/UCM252441.pdf
$endgroup$
– Slarty
11 hours ago
|
show 3 more comments
$begingroup$
Brush it off, eat it.
Of course there are trace amounts of elements present that are potentially harmful, but the bulk is made up of benign stuff: 50% SiO2, 15% Al2O3, 10% CaO, 10% MgO, 5% TiO2 and 5-15% iron. There will be no microorganisms, no parasites, no viruses, no higher organic poisons. there will be mostly sand-like stuff.
About the trace amounts of less cheerful stuff: Consider how much regolith will remain on your dropped sand(ha!)wich - One gram would be much even if you rolled it around in the stuff. Say 1/1000th of that is Chromium (it is not), and pretend all of that then proceeds to villainly oxidise into hexavalent Chromium (the deadly stuff) instead of trivalent Chromium (the vitally important stuff). LD50 for hexavalent Chromium is 50-150 mg/kg ... And you just now ingested .01 mg/kg (if you weigh 100kg). You are safe (but don't make a habit out of it!)
The sharp edges of the stuff will not be an issue either: very large shards of freshly broken glass pose a hazard to your digestive tract, but anything on the scale of 'stuff clinging to your sandwich' does not. If you bite off a shard off a glass of water (as children sometimes do) many emergency personnel will only intervene by making them eat some bread afterwards. It all gets buffered by the slime.
Of course it's not Best Practices to eat stuff from the ground, but a little regolith won't hurt.
answered 13 hours ago
bukwyrmbukwyrm
3,886723
$endgroup$
4
$begingroup$
It is my understanding that one of the Apollo 17 (?) astronauts was accidently exposed to a small amount of regolith and developed a significant rash from it. If I can find a reference, I'll add it, but even if not, I would not be so blythe as to just assume it cannot be harmful.
$endgroup$
– Paul Sinclair
12 hours ago
1
$begingroup$
@PaulSinclair i listed the bulk ingredients. If you have a Zn allergy and/or get the stuff in your breeches you might have a bad time. Point is OP asked about dropped food, not snuffing it, eating bulk amounts, rubbing yourself with it or any other regolith based abuse. If you can point to a compound that is critical in the amounts ingested (ppm in bolus of 1 g) and probable to exist in Regolith, go ahead.
$endgroup$
– bukwyrm
11 hours ago
3
$begingroup$
@bukwyrm - As I understand it (again, I'll have to do some searching to find the reference and confirm or deny my memory), the rash was not cause allergens or toxicity, but rather the skin irritation from the jagged dust.
$endgroup$
– Paul Sinclair
11 hours ago
3
$begingroup$
You'd have to have some pretty through cleaning methods for 'brushing it off' before eating that food. It's possible, but moon dust is difficult to get off of stuff. blogs.discovermagazine.com/d-brief/2018/03/02/lunar-dust
$endgroup$
– Zibbobz
11 hours ago
2
$begingroup$
@bukwyrm no you are right powdered glass does not appear to be as destructive as I thought. Hoever it does depend on the size of the particles fda.gov/downloads/Food/GuidanceRegulation/UCM252441.pdf
$endgroup$
– Slarty
11 hours ago
|
show 3 more comments
$begingroup$
Brush it off, eat it.
Of course there are trace amounts of elements present that are potentially harmful, but the bulk is made up of benign stuff: 50% SiO2, 15% Al2O3, 10% CaO, 10% MgO, 5% TiO2 and 5-15% iron. There will be no microorganisms, no parasites, no viruses, no higher organic poisons. there will be mostly sand-like stuff.
About the trace amounts of less cheerful stuff: Consider how much regolith will remain on your dropped sand(ha!)wich - One gram would be much even if you rolled it around in the stuff. Say 1/1000th of that is Chromium (it is not), and pretend all of that then proceeds to villainly oxidise into hexavalent Chromium (the deadly stuff) instead of trivalent Chromium (the vitally important stuff). LD50 for hexavalent Chromium is 50-150 mg/kg ... And you just now ingested .01 mg/kg (if you weigh 100kg). You are safe (but don't make a habit out of it!)
The sharp edges of the stuff will not be an issue either: very large shards of freshly broken glass pose a hazard to your digestive tract, but anything on the scale of 'stuff clinging to your sandwich' does not. If you bite off a shard off a glass of water (as children sometimes do) many emergency personnel will only intervene by making them eat some bread afterwards. It all gets buffered by the slime.
Of course it's not Best Practices to eat stuff from the ground, but a little regolith won't hurt.
answered 13 hours ago
bukwyrmbukwyrm
3,886723
$endgroup$
Brush it off, eat it.
Of course there are trace amounts of elements present that are potentially harmful, but the bulk is made up of benign stuff: 50% SiO2, 15% Al2O3, 10% CaO, 10% MgO, 5% TiO2 and 5-15% iron. There will be no microorganisms, no parasites, no viruses, no higher organic poisons. there will be mostly sand-like stuff.
About the trace amounts of less cheerful stuff: Consider how much regolith will remain on your dropped sand(ha!)wich - One gram would be much even if you rolled it around in the stuff. Say 1/1000th of that is Chromium (it is not), and pretend all of that then proceeds to villainly oxidise into hexavalent Chromium (the deadly stuff) instead of trivalent Chromium (the vitally important stuff). LD50 for hexavalent Chromium is 50-150 mg/kg ... And you just now ingested .01 mg/kg (if you weigh 100kg). You are safe (but don't make a habit out of it!)
The sharp edges of the stuff will not be an issue either: very large shards of freshly broken glass pose a hazard to your digestive tract, but anything on the scale of 'stuff clinging to your sandwich' does not. If you bite off a shard off a glass of water (as children sometimes do) many emergency personnel will only intervene by making them eat some bread afterwards. It all gets buffered by the slime.
Of course it's not Best Practices to eat stuff from the ground, but a little regolith won't hurt.
answered 13 hours ago
bukwyrmbukwyrm
3,886723
answered 13 hours ago
bukwyrmbukwyrm
3,886723
answered 13 hours ago
bukwyrmbukwyrm
3,886723
answered 13 hours ago
bukwyrmbukwyrm
3,886723
3,886723
4
$begingroup$
It is my understanding that one of the Apollo 17 (?) astronauts was accidently exposed to a small amount of regolith and developed a significant rash from it. If I can find a reference, I'll add it, but even if not, I would not be so blythe as to just assume it cannot be harmful.
$endgroup$
– Paul Sinclair
12 hours ago
1
$begingroup$
@PaulSinclair i listed the bulk ingredients. If you have a Zn allergy and/or get the stuff in your breeches you might have a bad time. Point is OP asked about dropped food, not snuffing it, eating bulk amounts, rubbing yourself with it or any other regolith based abuse. If you can point to a compound that is critical in the amounts ingested (ppm in bolus of 1 g) and probable to exist in Regolith, go ahead.
$endgroup$
– bukwyrm
11 hours ago
3
$begingroup$
@bukwyrm - As I understand it (again, I'll have to do some searching to find the reference and confirm or deny my memory), the rash was not cause allergens or toxicity, but rather the skin irritation from the jagged dust.
$endgroup$
– Paul Sinclair
11 hours ago
3
$begingroup$
You'd have to have some pretty through cleaning methods for 'brushing it off' before eating that food. It's possible, but moon dust is difficult to get off of stuff. blogs.discovermagazine.com/d-brief/2018/03/02/lunar-dust
$endgroup$
– Zibbobz
11 hours ago
2
$begingroup$
@bukwyrm no you are right powdered glass does not appear to be as destructive as I thought. Hoever it does depend on the size of the particles fda.gov/downloads/Food/GuidanceRegulation/UCM252441.pdf
$endgroup$
– Slarty
11 hours ago
|
show 3 more comments
4
$begingroup$
It is my understanding that one of the Apollo 17 (?) astronauts was accidently exposed to a small amount of regolith and developed a significant rash from it. If I can find a reference, I'll add it, but even if not, I would not be so blythe as to just assume it cannot be harmful.
$endgroup$
– Paul Sinclair
12 hours ago
1
$begingroup$
@PaulSinclair i listed the bulk ingredients. If you have a Zn allergy and/or get the stuff in your breeches you might have a bad time. Point is OP asked about dropped food, not snuffing it, eating bulk amounts, rubbing yourself with it or any other regolith based abuse. If you can point to a compound that is critical in the amounts ingested (ppm in bolus of 1 g) and probable to exist in Regolith, go ahead.
$endgroup$
– bukwyrm
11 hours ago
3
$begingroup$
@bukwyrm - As I understand it (again, I'll have to do some searching to find the reference and confirm or deny my memory), the rash was not cause allergens or toxicity, but rather the skin irritation from the jagged dust.
$endgroup$
– Paul Sinclair
11 hours ago
3
$begingroup$
You'd have to have some pretty through cleaning methods for 'brushing it off' before eating that food. It's possible, but moon dust is difficult to get off of stuff. blogs.discovermagazine.com/d-brief/2018/03/02/lunar-dust
$endgroup$
– Zibbobz
11 hours ago
2
$begingroup$
@bukwyrm no you are right powdered glass does not appear to be as destructive as I thought. Hoever it does depend on the size of the particles fda.gov/downloads/Food/GuidanceRegulation/UCM252441.pdf
$endgroup$
– Slarty
11 hours ago
4
4
$begingroup$
It is my understanding that one of the Apollo 17 (?) astronauts was accidently exposed to a small amount of regolith and developed a significant rash from it. If I can find a reference, I'll add it, but even if not, I would not be so blythe as to just assume it cannot be harmful.
$endgroup$
– Paul Sinclair
12 hours ago
$begingroup$
It is my understanding that one of the Apollo 17 (?) astronauts was accidently exposed to a small amount of regolith and developed a significant rash from it. If I can find a reference, I'll add it, but even if not, I would not be so blythe as to just assume it cannot be harmful.
$endgroup$
– Paul Sinclair
12 hours ago
1
1
$begingroup$
@PaulSinclair i listed the bulk ingredients. If you have a Zn allergy and/or get the stuff in your breeches you might have a bad time. Point is OP asked about dropped food, not snuffing it, eating bulk amounts, rubbing yourself with it or any other regolith based abuse. If you can point to a compound that is critical in the amounts ingested (ppm in bolus of 1 g) and probable to exist in Regolith, go ahead.
$endgroup$
– bukwyrm
11 hours ago
$begingroup$
@PaulSinclair i listed the bulk ingredients. If you have a Zn allergy and/or get the stuff in your breeches you might have a bad time. Point is OP asked about dropped food, not snuffing it, eating bulk amounts, rubbing yourself with it or any other regolith based abuse. If you can point to a compound that is critical in the amounts ingested (ppm in bolus of 1 g) and probable to exist in Regolith, go ahead.
$endgroup$
– bukwyrm
11 hours ago
3
3
$begingroup$
@bukwyrm - As I understand it (again, I'll have to do some searching to find the reference and confirm or deny my memory), the rash was not cause allergens or toxicity, but rather the skin irritation from the jagged dust.
$endgroup$
– Paul Sinclair
11 hours ago
$begingroup$
@bukwyrm - As I understand it (again, I'll have to do some searching to find the reference and confirm or deny my memory), the rash was not cause allergens or toxicity, but rather the skin irritation from the jagged dust.
$endgroup$
– Paul Sinclair
11 hours ago
3
3
$begingroup$
You'd have to have some pretty through cleaning methods for 'brushing it off' before eating that food. It's possible, but moon dust is difficult to get off of stuff. blogs.discovermagazine.com/d-brief/2018/03/02/lunar-dust
$endgroup$
– Zibbobz
11 hours ago
$begingroup$
You'd have to have some pretty through cleaning methods for 'brushing it off' before eating that food. It's possible, but moon dust is difficult to get off of stuff. blogs.discovermagazine.com/d-brief/2018/03/02/lunar-dust
$endgroup$
– Zibbobz
11 hours ago
2
2
$begingroup$
@bukwyrm no you are right powdered glass does not appear to be as destructive as I thought. Hoever it does depend on the size of the particles fda.gov/downloads/Food/GuidanceRegulation/UCM252441.pdf
$endgroup$
– Slarty
11 hours ago
$begingroup$
@bukwyrm no you are right powdered glass does not appear to be as destructive as I thought. Hoever it does depend on the size of the particles fda.gov/downloads/Food/GuidanceRegulation/UCM252441.pdf
$endgroup$
– Slarty
11 hours ago
|
show 3 more comments
$begingroup$
It'll break your teeth. The moon is often very cold or very hot on the surface. The sandwich has potentially been flash-frozen or is now burnt depending on where it dropped.
answered 8 hours ago
liljoshuliljoshu
1,623311
$endgroup$
2
$begingroup$
IIRC, day side gets to over 200° F. Might be more concerned about burning your tongue.
$endgroup$
– A C
8 hours ago
$begingroup$
Also true. I'll update the answer.
$endgroup$
– liljoshu
7 hours ago
add a comment |
$begingroup$
It'll break your teeth. The moon is often very cold or very hot on the surface. The sandwich has potentially been flash-frozen or is now burnt depending on where it dropped.
answered 8 hours ago
liljoshuliljoshu
1,623311
$endgroup$
2
$begingroup$
IIRC, day side gets to over 200° F. Might be more concerned about burning your tongue.
$endgroup$
– A C
8 hours ago
$begingroup$
Also true. I'll update the answer.
$endgroup$
– liljoshu
7 hours ago
add a comment |
$begingroup$
It'll break your teeth. The moon is often very cold or very hot on the surface. The sandwich has potentially been flash-frozen or is now burnt depending on where it dropped.
answered 8 hours ago
liljoshuliljoshu
1,623311
$endgroup$
It'll break your teeth. The moon is often very cold or very hot on the surface. The sandwich has potentially been flash-frozen or is now burnt depending on where it dropped.
answered 8 hours ago
liljoshuliljoshu
1,623311
edited 7 hours ago
answered 8 hours ago
liljoshuliljoshu
1,623311
answered 8 hours ago
liljoshuliljoshu
1,623311
answered 8 hours ago
liljoshuliljoshu
1,623311
1,623311
2
$begingroup$
IIRC, day side gets to over 200° F. Might be more concerned about burning your tongue.
$endgroup$
– A C
8 hours ago
$begingroup$
Also true. I'll update the answer.
$endgroup$
– liljoshu
7 hours ago
add a comment |
2
$begingroup$
IIRC, day side gets to over 200° F. Might be more concerned about burning your tongue.
$endgroup$
– A C
8 hours ago
$begingroup$
Also true. I'll update the answer.
$endgroup$
– liljoshu
7 hours ago
2
2
$begingroup$
IIRC, day side gets to over 200° F. Might be more concerned about burning your tongue.
$endgroup$
– A C
8 hours ago
$begingroup$
IIRC, day side gets to over 200° F. Might be more concerned about burning your tongue.
$endgroup$
– A C
8 hours ago
$begingroup$
Also true. I'll update the answer.
$endgroup$
– liljoshu
7 hours ago
$begingroup$
Also true. I'll update the answer.
$endgroup$
– liljoshu
7 hours ago
add a comment |
Viglé is a new contributor. Be nice, and check out our Code of Conduct.
Viglé is a new contributor. Be nice, and check out our Code of Conduct.
Viglé is a new contributor. Be nice, and check out our Code of Conduct.
Viglé is a new contributor. Be nice, and check out our Code of Conduct.
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4
$begingroup$
I am assuming you mean on the surface of the moon proper, not on the surface of whatever dome has been erected - which leaves me with the question: how did the food get there? Why does an astronaut have any food outside her suit? How will you eat it if you pick it up? ----- But apart from that: The surface is scoured by unfiltered sunlight, and completely inert, so yes, it would be safe.
$endgroup$
– bukwyrm
15 hours ago
11
$begingroup$
@bukwyrm no food is going to be clean when picked up, and the moon is covered in silcia dust.... In the words of the guy from 'Will it Blend' -- Don't eat this.
$endgroup$
– djsmiley2k
13 hours ago
3
$begingroup$
@djsmiley2k you are talking to the survivor of ingesting at least 100 g of silica (including fine dust) during my active career in the kindergarden's sandlot.
$endgroup$
– bukwyrm
13 hours ago
6
$begingroup$
Much safer than on Earth. Lunar gravity is lower, which means that the food takes longer to fall to the ground. This means that, from the moment you notice that the food is falling, you have more time to pick it up before the ten-second rule is violated. 😉
$endgroup$
– David Richerby
12 hours ago
2
$begingroup$
I think my mother would be rather annoyed if I 1) Ate food off the ground, 2) Offered other folks food to eat that had been on the ground, and 3) Carried my lunch around in an open container so it fell onto the ground in the first place. All her years of careful nurturing wasted!
$endgroup$
– user535733
12 hours ago