Cracking Knuckles in Zero GravityAdjusting to changes in gravity and pressurePaper making in zero gHow would...
Make me a metasequence
What is the difference between ashamed and shamed?
What is knowledge and vision?
Is there a frame of reference in which I was born before I was conceived?
What is the wife of a henpecked husband called?
Non-Italian European mafias in USA?
Accessing something inside the object when you don't know the key
Avoiding unpacking an array when altering its dimension
Did Amazon pay $0 in taxes last year?
Series pass transistor, LM7812
Is there a German word for “analytics”?
Are small insurances worth it
How to avoid being sexist when trying to employ someone to function in a very sexist environment?
Why is working on the same position for more than 15 years not a red flag?
What does 'open position for bachelor project' actually mean?
It took me a lot of time to make this, pls like. (YouTube Comments #1)
How can atoms be electrically neutral when there is a difference in the positions of the charges?
If nine coins are tossed, what is the probability that the number of heads is even?
How to kill a localhost:8080
Why do members of Congress in committee hearings ask witnesses the same question multiple times?
Understanding Kramnik's play in game 1 of Candidates 2018
Do authors have to be politically correct in article-writing?
What do the pedals on grand pianos do?
If a druid in Wild Shape swallows a creature whole, then turns back to her normal form, what happens?
Cracking Knuckles in Zero Gravity
Adjusting to changes in gravity and pressurePaper making in zero gHow would an unexpected zero-g event affect a city?How would lower gravity affect motion?The Source of Gravity Based DestructionHow will birds be different on a <1g world?Falling in a micro-gravity scenario?Can this type of winged humanoid possibly work? See diagramsWhat would the effects of zones of differing gravity be on a large volume of open atmosphereMartial arts in zero or low gravity
$begingroup$
Cracking knuckles has something to do with air bubbles, but would it work in the same way if there is no gravity? If not, how would it be different? Would there still be a popping sound and/or sensation?
science-based biology microgravity
asked 7 hours ago
Nicholette CampbellNicholette Campbell
293
New contributor
Nicholette Campbell is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
add a comment |
$begingroup$
Cracking knuckles has something to do with air bubbles, but would it work in the same way if there is no gravity? If not, how would it be different? Would there still be a popping sound and/or sensation?
science-based biology microgravity
asked 7 hours ago
Nicholette CampbellNicholette Campbell
293
New contributor
Nicholette Campbell is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
$begingroup$
what a ridiculous & awesome question! re: sound, whilst 'there's no sound in space' is a common (para)phrase, in almost all situations where people say it.. there would in fact be sound - whales don't sing in the air.
$endgroup$
– Giu Piete
1 hour ago
add a comment |
$begingroup$
Cracking knuckles has something to do with air bubbles, but would it work in the same way if there is no gravity? If not, how would it be different? Would there still be a popping sound and/or sensation?
science-based biology microgravity
asked 7 hours ago
Nicholette CampbellNicholette Campbell
293
New contributor
Nicholette Campbell is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$endgroup$
Cracking knuckles has something to do with air bubbles, but would it work in the same way if there is no gravity? If not, how would it be different? Would there still be a popping sound and/or sensation?
science-based biology microgravity
science-based biology microgravity
asked 7 hours ago
Nicholette CampbellNicholette Campbell
293
New contributor
Nicholette Campbell is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 7 hours ago
Nicholette CampbellNicholette Campbell
293
New contributor
Nicholette Campbell is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 7 hours ago
Nicholette CampbellNicholette Campbell
293
New contributor
Nicholette Campbell is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
asked 7 hours ago
Nicholette CampbellNicholette Campbell
293
asked 7 hours ago
Nicholette CampbellNicholette Campbell
293
293
New contributor
Nicholette Campbell is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
New contributor
Nicholette Campbell is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
Nicholette Campbell is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
$begingroup$
what a ridiculous & awesome question! re: sound, whilst 'there's no sound in space' is a common (para)phrase, in almost all situations where people say it.. there would in fact be sound - whales don't sing in the air.
$endgroup$
– Giu Piete
1 hour ago
add a comment |
$begingroup$
what a ridiculous & awesome question! re: sound, whilst 'there's no sound in space' is a common (para)phrase, in almost all situations where people say it.. there would in fact be sound - whales don't sing in the air.
$endgroup$
– Giu Piete
1 hour ago
$begingroup$
what a ridiculous & awesome question! re: sound, whilst 'there's no sound in space' is a common (para)phrase, in almost all situations where people say it.. there would in fact be sound - whales don't sing in the air.
$endgroup$
– Giu Piete
1 hour ago
$begingroup$
what a ridiculous & awesome question! re: sound, whilst 'there's no sound in space' is a common (para)phrase, in almost all situations where people say it.. there would in fact be sound - whales don't sing in the air.
$endgroup$
– Giu Piete
1 hour ago
add a comment |
1 Answer
1
active
oldest
votes
$begingroup$
From Wikipedia
The cracking mechanism and the resulting sound is caused by carbon dioxide cavitation bubbles suddenly partially collapsing inside the joints.
The collapsing of the bubbles is due to pressure differential between the inside and the outside of the bubble.
When we consider the pressure in a liquid, we can distinguish two components:
- pressure due to the proper weight of the fluid above the measuring point
- pressure exerted from outside the fluid (i.e. atmosphere)
In microgravity 1 would be 0, but 2 will still be present (else any liquid in microgravity would immediatly evaporate).
Therefore, if the person cracking knuckles is in microgravity but still under some atmospheric pressure, the pressure differential will be of the same order of magnitude. Therefore it is reasonable to expect the same phenomena to happen.
answered 7 hours ago
L.Dutch♦L.Dutch
86k29201420
$endgroup$
$begingroup$
I once saw a NASA livestream where i heard a cracking sound as if one of the astronauts accidentaly cracked his knuckles. Could be that the cracking sound was made by equipment, but i do not know. AFAIK the air pressure on board the ISS is nearly identical to air pressure on sea level, so the pressure differential should be the same, i think.
$endgroup$
– DarthDonut
1 hour ago
$begingroup$
@DarthDonut you are right. I was elucubrating on this answer while doing other stuff, and indeed I am editing it right now
$endgroup$
– L.Dutch♦
1 hour ago
1
$begingroup$
I think this would better have been answered on space.stackexchange.com I can't quite see how knuckle-cracking is about Worldbuilding without being story-based.
$endgroup$
– chasly from UK
1 hour ago
$begingroup$
As the cracking happens in fluid reservoirs on the mm-scale, the weight of the fluid is immaterial. All that needs to be considered is the external pressure, which on the ISS is sea level earth. As the partial pressure of carbon dioxide inside the body would also not be specific to space stations vs earth, we can assume knuckle cracking in space to happen.
$endgroup$
– bukwyrm
1 hour ago
$begingroup$
@chaslyfromUK Oh don't turn into one of them.
$endgroup$
– Giu Piete
1 hour ago
|
show 1 more comment
Your Answer
StackExchange.ifUsing("editor", function () {
return StackExchange.using("mathjaxEditing", function () {
StackExchange.MarkdownEditor.creationCallbacks.add(function (editor, postfix) {
StackExchange.mathjaxEditing.prepareWmdForMathJax(editor, postfix, [["$", "$"], ["\\(","\\)"]]);
});
});
}, "mathjax-editing");
StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "579"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});
function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: false,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: null,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
noCode: true, onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});
}
});
Nicholette Campbell is a new contributor. Be nice, and check out our Code of Conduct.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fworldbuilding.stackexchange.com%2fquestions%2f140722%2fcracking-knuckles-in-zero-gravity%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
$begingroup$
From Wikipedia
The cracking mechanism and the resulting sound is caused by carbon dioxide cavitation bubbles suddenly partially collapsing inside the joints.
The collapsing of the bubbles is due to pressure differential between the inside and the outside of the bubble.
When we consider the pressure in a liquid, we can distinguish two components:
- pressure due to the proper weight of the fluid above the measuring point
- pressure exerted from outside the fluid (i.e. atmosphere)
In microgravity 1 would be 0, but 2 will still be present (else any liquid in microgravity would immediatly evaporate).
Therefore, if the person cracking knuckles is in microgravity but still under some atmospheric pressure, the pressure differential will be of the same order of magnitude. Therefore it is reasonable to expect the same phenomena to happen.
answered 7 hours ago
L.Dutch♦L.Dutch
86k29201420
$endgroup$
$begingroup$
I once saw a NASA livestream where i heard a cracking sound as if one of the astronauts accidentaly cracked his knuckles. Could be that the cracking sound was made by equipment, but i do not know. AFAIK the air pressure on board the ISS is nearly identical to air pressure on sea level, so the pressure differential should be the same, i think.
$endgroup$
– DarthDonut
1 hour ago
$begingroup$
@DarthDonut you are right. I was elucubrating on this answer while doing other stuff, and indeed I am editing it right now
$endgroup$
– L.Dutch♦
1 hour ago
1
$begingroup$
I think this would better have been answered on space.stackexchange.com I can't quite see how knuckle-cracking is about Worldbuilding without being story-based.
$endgroup$
– chasly from UK
1 hour ago
$begingroup$
As the cracking happens in fluid reservoirs on the mm-scale, the weight of the fluid is immaterial. All that needs to be considered is the external pressure, which on the ISS is sea level earth. As the partial pressure of carbon dioxide inside the body would also not be specific to space stations vs earth, we can assume knuckle cracking in space to happen.
$endgroup$
– bukwyrm
1 hour ago
$begingroup$
@chaslyfromUK Oh don't turn into one of them.
$endgroup$
– Giu Piete
1 hour ago
|
show 1 more comment
$begingroup$
From Wikipedia
The cracking mechanism and the resulting sound is caused by carbon dioxide cavitation bubbles suddenly partially collapsing inside the joints.
The collapsing of the bubbles is due to pressure differential between the inside and the outside of the bubble.
When we consider the pressure in a liquid, we can distinguish two components:
- pressure due to the proper weight of the fluid above the measuring point
- pressure exerted from outside the fluid (i.e. atmosphere)
In microgravity 1 would be 0, but 2 will still be present (else any liquid in microgravity would immediatly evaporate).
Therefore, if the person cracking knuckles is in microgravity but still under some atmospheric pressure, the pressure differential will be of the same order of magnitude. Therefore it is reasonable to expect the same phenomena to happen.
answered 7 hours ago
L.Dutch♦L.Dutch
86k29201420
$endgroup$
$begingroup$
I once saw a NASA livestream where i heard a cracking sound as if one of the astronauts accidentaly cracked his knuckles. Could be that the cracking sound was made by equipment, but i do not know. AFAIK the air pressure on board the ISS is nearly identical to air pressure on sea level, so the pressure differential should be the same, i think.
$endgroup$
– DarthDonut
1 hour ago
$begingroup$
@DarthDonut you are right. I was elucubrating on this answer while doing other stuff, and indeed I am editing it right now
$endgroup$
– L.Dutch♦
1 hour ago
1
$begingroup$
I think this would better have been answered on space.stackexchange.com I can't quite see how knuckle-cracking is about Worldbuilding without being story-based.
$endgroup$
– chasly from UK
1 hour ago
$begingroup$
As the cracking happens in fluid reservoirs on the mm-scale, the weight of the fluid is immaterial. All that needs to be considered is the external pressure, which on the ISS is sea level earth. As the partial pressure of carbon dioxide inside the body would also not be specific to space stations vs earth, we can assume knuckle cracking in space to happen.
$endgroup$
– bukwyrm
1 hour ago
$begingroup$
@chaslyfromUK Oh don't turn into one of them.
$endgroup$
– Giu Piete
1 hour ago
|
show 1 more comment
$begingroup$
From Wikipedia
The cracking mechanism and the resulting sound is caused by carbon dioxide cavitation bubbles suddenly partially collapsing inside the joints.
The collapsing of the bubbles is due to pressure differential between the inside and the outside of the bubble.
When we consider the pressure in a liquid, we can distinguish two components:
- pressure due to the proper weight of the fluid above the measuring point
- pressure exerted from outside the fluid (i.e. atmosphere)
In microgravity 1 would be 0, but 2 will still be present (else any liquid in microgravity would immediatly evaporate).
Therefore, if the person cracking knuckles is in microgravity but still under some atmospheric pressure, the pressure differential will be of the same order of magnitude. Therefore it is reasonable to expect the same phenomena to happen.
answered 7 hours ago
L.Dutch♦L.Dutch
86k29201420
$endgroup$
From Wikipedia
The cracking mechanism and the resulting sound is caused by carbon dioxide cavitation bubbles suddenly partially collapsing inside the joints.
The collapsing of the bubbles is due to pressure differential between the inside and the outside of the bubble.
When we consider the pressure in a liquid, we can distinguish two components:
- pressure due to the proper weight of the fluid above the measuring point
- pressure exerted from outside the fluid (i.e. atmosphere)
In microgravity 1 would be 0, but 2 will still be present (else any liquid in microgravity would immediatly evaporate).
Therefore, if the person cracking knuckles is in microgravity but still under some atmospheric pressure, the pressure differential will be of the same order of magnitude. Therefore it is reasonable to expect the same phenomena to happen.
answered 7 hours ago
L.Dutch♦L.Dutch
86k29201420
edited 1 hour ago
answered 7 hours ago
L.Dutch♦L.Dutch
86k29201420
answered 7 hours ago
L.Dutch♦L.Dutch
86k29201420
answered 7 hours ago
L.Dutch♦L.Dutch
86k29201420
86k29201420
$begingroup$
I once saw a NASA livestream where i heard a cracking sound as if one of the astronauts accidentaly cracked his knuckles. Could be that the cracking sound was made by equipment, but i do not know. AFAIK the air pressure on board the ISS is nearly identical to air pressure on sea level, so the pressure differential should be the same, i think.
$endgroup$
– DarthDonut
1 hour ago
$begingroup$
@DarthDonut you are right. I was elucubrating on this answer while doing other stuff, and indeed I am editing it right now
$endgroup$
– L.Dutch♦
1 hour ago
1
$begingroup$
I think this would better have been answered on space.stackexchange.com I can't quite see how knuckle-cracking is about Worldbuilding without being story-based.
$endgroup$
– chasly from UK
1 hour ago
$begingroup$
As the cracking happens in fluid reservoirs on the mm-scale, the weight of the fluid is immaterial. All that needs to be considered is the external pressure, which on the ISS is sea level earth. As the partial pressure of carbon dioxide inside the body would also not be specific to space stations vs earth, we can assume knuckle cracking in space to happen.
$endgroup$
– bukwyrm
1 hour ago
$begingroup$
@chaslyfromUK Oh don't turn into one of them.
$endgroup$
– Giu Piete
1 hour ago
|
show 1 more comment
$begingroup$
I once saw a NASA livestream where i heard a cracking sound as if one of the astronauts accidentaly cracked his knuckles. Could be that the cracking sound was made by equipment, but i do not know. AFAIK the air pressure on board the ISS is nearly identical to air pressure on sea level, so the pressure differential should be the same, i think.
$endgroup$
– DarthDonut
1 hour ago
$begingroup$
@DarthDonut you are right. I was elucubrating on this answer while doing other stuff, and indeed I am editing it right now
$endgroup$
– L.Dutch♦
1 hour ago
1
$begingroup$
I think this would better have been answered on space.stackexchange.com I can't quite see how knuckle-cracking is about Worldbuilding without being story-based.
$endgroup$
– chasly from UK
1 hour ago
$begingroup$
As the cracking happens in fluid reservoirs on the mm-scale, the weight of the fluid is immaterial. All that needs to be considered is the external pressure, which on the ISS is sea level earth. As the partial pressure of carbon dioxide inside the body would also not be specific to space stations vs earth, we can assume knuckle cracking in space to happen.
$endgroup$
– bukwyrm
1 hour ago
$begingroup$
@chaslyfromUK Oh don't turn into one of them.
$endgroup$
– Giu Piete
1 hour ago
$begingroup$
I once saw a NASA livestream where i heard a cracking sound as if one of the astronauts accidentaly cracked his knuckles. Could be that the cracking sound was made by equipment, but i do not know. AFAIK the air pressure on board the ISS is nearly identical to air pressure on sea level, so the pressure differential should be the same, i think.
$endgroup$
– DarthDonut
1 hour ago
$begingroup$
I once saw a NASA livestream where i heard a cracking sound as if one of the astronauts accidentaly cracked his knuckles. Could be that the cracking sound was made by equipment, but i do not know. AFAIK the air pressure on board the ISS is nearly identical to air pressure on sea level, so the pressure differential should be the same, i think.
$endgroup$
– DarthDonut
1 hour ago
$begingroup$
@DarthDonut you are right. I was elucubrating on this answer while doing other stuff, and indeed I am editing it right now
$endgroup$
– L.Dutch♦
1 hour ago
$begingroup$
@DarthDonut you are right. I was elucubrating on this answer while doing other stuff, and indeed I am editing it right now
$endgroup$
– L.Dutch♦
1 hour ago
1
1
$begingroup$
I think this would better have been answered on space.stackexchange.com I can't quite see how knuckle-cracking is about Worldbuilding without being story-based.
$endgroup$
– chasly from UK
1 hour ago
$begingroup$
I think this would better have been answered on space.stackexchange.com I can't quite see how knuckle-cracking is about Worldbuilding without being story-based.
$endgroup$
– chasly from UK
1 hour ago
$begingroup$
As the cracking happens in fluid reservoirs on the mm-scale, the weight of the fluid is immaterial. All that needs to be considered is the external pressure, which on the ISS is sea level earth. As the partial pressure of carbon dioxide inside the body would also not be specific to space stations vs earth, we can assume knuckle cracking in space to happen.
$endgroup$
– bukwyrm
1 hour ago
$begingroup$
As the cracking happens in fluid reservoirs on the mm-scale, the weight of the fluid is immaterial. All that needs to be considered is the external pressure, which on the ISS is sea level earth. As the partial pressure of carbon dioxide inside the body would also not be specific to space stations vs earth, we can assume knuckle cracking in space to happen.
$endgroup$
– bukwyrm
1 hour ago
$begingroup$
@chaslyfromUK Oh don't turn into one of them.
$endgroup$
– Giu Piete
1 hour ago
$begingroup$
@chaslyfromUK Oh don't turn into one of them.
$endgroup$
– Giu Piete
1 hour ago
|
show 1 more comment
Nicholette Campbell is a new contributor. Be nice, and check out our Code of Conduct.
Nicholette Campbell is a new contributor. Be nice, and check out our Code of Conduct.
Nicholette Campbell is a new contributor. Be nice, and check out our Code of Conduct.
Nicholette Campbell is a new contributor. Be nice, and check out our Code of Conduct.
Thanks for contributing an answer to Worldbuilding Stack Exchange!
- Please be sure to answer the question. Provide details and share your research!
But avoid …
- Asking for help, clarification, or responding to other answers.
- Making statements based on opinion; back them up with references or personal experience.
Use MathJax to format equations. MathJax reference.
To learn more, see our tips on writing great answers.
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fworldbuilding.stackexchange.com%2fquestions%2f140722%2fcracking-knuckles-in-zero-gravity%23new-answer', 'question_page');
}
);
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Sign up or log in
StackExchange.ready(function () {
StackExchange.helpers.onClickDraftSave('#login-link');
});
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Sign up using Google
Sign up using Facebook
Sign up using Email and Password
Post as a guest
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
Required, but never shown
$begingroup$
what a ridiculous & awesome question! re: sound, whilst 'there's no sound in space' is a common (para)phrase, in almost all situations where people say it.. there would in fact be sound - whales don't sing in the air.
$endgroup$
– Giu Piete
1 hour ago