Of course there would be a space in between with comfortable temperature, but thinking how it works, gases like oxygen and nitrogen would freeze on the dark side of the planet, building layers of ice, it would maybe never evaporate again, so a atmosphere on the day side would be thinning too much, i see really climatic problems there, but interesting task to think this through
the energy you lose can be calculated with black body radiation formula, you need to fill in the temperature of your surface (would be the surface of your suit, or skin if you are naked), you will also receive a very low radiation FROM empty space but since it's temperature is 3 Kelvin you would get back near nothing - however being near the sun changes everything, since you will also receive THAT radiation
@shagster1970 There are three types of heat transfer : conduction, convection and radiation. A medium is required for convection and conduction to occur, but not radiation. Radiation is the emission of photons (in a wave length that is usually not visible to the naked eye) which can be observed when you turn a light on and feel the heat from it. Even with this knowledge, I'm still not sure if you would feel cold. I assume that you would just have losses from radiation only? tis a good question!
there is not vacuum in space. when you have a vacuum in a bottle it is because the atmospheric pressure is pushing on the outside of the bottle. there is no potential difference in pressure in open space. there is not cold in space. its the inability to conserve energy as heat locally that make you freeze to deat in space. if you have a reflective suit to keep your body heat from radiating away in space you would be fine.
@lightingrings Space actually has a very very low density of hydrogen particles flying around, so it's not a perfect vacuum. But in any case the temperature of space would be the thermal equilibrium of an object placed in space... so if I left a metal bar in the depths of space, how cold would it get? It would lose a lot of energy by radiation, but it wouldn't lose all of its energy because of the cosmic microwave background radiation supplying it with heat. This gives a temperature of about 3K.
This guy is a GENIOUS! ' We are lucky the earth spins' I never thought of that. And now i know: We ARE lucky the earth spins. The earth is so perfect if you watch these videos! Green zone. Water. This is a chance from 1 to a zillion!
He's answer had nothing to do with her question, at least I thought about her question different from the stupid answer about our planet turning arround the sun.
i think what she is asking is if space is nothing then why is it cold shouldn't it have no temperature and the answer is all matter has energy and energy creates heat but if the vacume of space has no matter or energy than it is consequently very cold there is no medium for heat to travel through
@rudedogtyler I think the answer is that heat is emitted as electromagnetic radiation, and does NOT need matter to travel through. Heat CAN transfer physically through matter as vibrations of atoms, but the heat we get from the sun is transferred because its electromagnetic radiation excites our atoms and causes them to vibrate.
as far as i know, temperature is relative (like lot of other things) and definition warm is subjective. you are right when you say vacuum is not completely empty, its just matter in space incredibly scarce between starts and galaxies. But whatever particles do exist in this space do have the temperature of 2.725 Kelvin. There is still micro-kinetic energy in these atoms which causes its temperature to be above absolute zero.
becouse that "something" is 2 or three hundred atoms, or photons, quarks, neutrinos... in a cubic kilometer! even if you "heat up" those atoms to 1000000 degrees, it's still NOTHING compared to the warmth a human body posesses, becouse the number of atoms we have here in a cubic kilometer is around 1000 000 000 000 000 000 000 000 000 TIMES more than in vacuum.
THAT is why people say "vacuum is nothing"; it's not really NOTHING (0), but compared to the things we can see; it's as good as NOTHING
air, water, earth... it's all a collection of atoms, and heat is our interpretation of the micro-kinetic energy of those atoms; if there are no atoms (vacuum), then there can simply be no heat...
Temperature is actually movement of matter (atoms and molecules). Higher temprature means more movement and higher energy.
Vacumm is lack of matter, so there's no temprature in space. Lets say you go out in vaccum of space with a space suit, you and your suit will start loosing heat because of heat radiation you are emitting, but If you are close enough to the sun and the sun is visible then you will get hot by the suns radiation.
Sorry there's always a bit matter even in the "vaccum" of space, but the sparsity of it is what makes the exchange of temprature to be slower than what you expect of something that' 3k. If you have been in a 100 degree celcius sauna you understand this concept. 100 degree celcius water is boiling water, but 100 degree celcius air does not contain as much energy density to heat you up that fast, but you will get cooked if you stay there long enough
@JamesWhiffinVFX
Of course there would be a space in between with comfortable temperature, but thinking how it works, gases like oxygen and nitrogen would freeze on the dark side of the planet, building layers of ice, it would maybe never evaporate again, so a atmosphere on the day side would be thinning too much, i see really climatic problems there, but interesting task to think this through
scathiebaby 3 months ago
@hypock1, shagster1970
the energy you lose can be calculated with black body radiation formula, you need to fill in the temperature of your surface (would be the surface of your suit, or skin if you are naked), you will also receive a very low radiation FROM empty space but since it's temperature is 3 Kelvin you would get back near nothing - however being near the sun changes everything, since you will also receive THAT radiation
scathiebaby 3 months ago
Simple,what keeps us warm is matter and objects formed by it such as stars and planets and so on, focus that energy.
Without matter there is no heat.
Crisshomes1 5 months ago
Just say u stuck ur hand out in space - If there is nothing to dissapate the heat in your hand to space - would you feel the cold?
shagster1970 6 months ago
@shagster1970 There are three types of heat transfer : conduction, convection and radiation. A medium is required for convection and conduction to occur, but not radiation. Radiation is the emission of photons (in a wave length that is usually not visible to the naked eye) which can be observed when you turn a light on and feel the heat from it. Even with this knowledge, I'm still not sure if you would feel cold. I assume that you would just have losses from radiation only? tis a good question!
hypock1 6 months ago
If the earth didn't spin and one side was too hot, the other too cold, would there be an area between them that was a pleasant temperature?
JamesWhiffinVFX 9 months ago
how can i ask him does hi still receive questions ?
and where ?
learning112233 11 months ago
there is not vacuum in space. when you have a vacuum in a bottle it is because the atmospheric pressure is pushing on the outside of the bottle. there is no potential difference in pressure in open space. there is not cold in space. its the inability to conserve energy as heat locally that make you freeze to deat in space. if you have a reflective suit to keep your body heat from radiating away in space you would be fine.
coldarc 1 year ago
wow God is so clever, he knew if we didnt spin we would freeze!!!!..
richassuzy 1 year ago
space has no temperature, only matter can have temperature, the space is a vaccum which means no air and that means that it has no temperature
lightingrings 1 year ago
@lightingrings Space actually has a very very low density of hydrogen particles flying around, so it's not a perfect vacuum. But in any case the temperature of space would be the thermal equilibrium of an object placed in space... so if I left a metal bar in the depths of space, how cold would it get? It would lose a lot of energy by radiation, but it wouldn't lose all of its energy because of the cosmic microwave background radiation supplying it with heat. This gives a temperature of about 3K.
lIThorIl 1 year ago
@lightingrings
Space isn't a perfect vacuum, so it has temperature.
newfrontier3000 1 year ago
what the hell
luckyluke658 1 year ago
This guy is a GENIOUS! ' We are lucky the earth spins' I never thought of that. And now i know: We ARE lucky the earth spins. The earth is so perfect if you watch these videos! Green zone. Water. This is a chance from 1 to a zillion!
Glennfalconi 1 year ago
@Glennfalconi
And with the scope of the universe... those are pretty odds, lol.
newfrontier3000 1 year ago
@newfrontier3000 *pretty good odds**
newfrontier3000 1 year ago
He's answer had nothing to do with her question, at least I thought about her question different from the stupid answer about our planet turning arround the sun.
AndiOliverI 1 year ago
@AndiOliverI
what the hell are u talking about..he did answer her question.
itzahazylife 1 year ago
i think what she is asking is if space is nothing then why is it cold shouldn't it have no temperature and the answer is all matter has energy and energy creates heat but if the vacume of space has no matter or energy than it is consequently very cold there is no medium for heat to travel through
rudedogtyler 1 year ago
@rudedogtyler I think the answer is that heat is emitted as electromagnetic radiation, and does NOT need matter to travel through. Heat CAN transfer physically through matter as vibrations of atoms, but the heat we get from the sun is transferred because its electromagnetic radiation excites our atoms and causes them to vibrate.
thoughtupquick 1 year ago
he still didnt say how cold outer space is.
salamonetalton 2 years ago
as far as i know, temperature is relative (like lot of other things) and definition warm is subjective. you are right when you say vacuum is not completely empty, its just matter in space incredibly scarce between starts and galaxies. But whatever particles do exist in this space do have the temperature of 2.725 Kelvin. There is still micro-kinetic energy in these atoms which causes its temperature to be above absolute zero.
kilochfuller 2 years ago
the atmosphere acts as a buffer
markinu 2 years ago
becouse that "something" is 2 or three hundred atoms, or photons, quarks, neutrinos... in a cubic kilometer! even if you "heat up" those atoms to 1000000 degrees, it's still NOTHING compared to the warmth a human body posesses, becouse the number of atoms we have here in a cubic kilometer is around 1000 000 000 000 000 000 000 000 000 TIMES more than in vacuum.
THAT is why people say "vacuum is nothing"; it's not really NOTHING (0), but compared to the things we can see; it's as good as NOTHING
theVegetroniX 2 years ago
I'd like to know why the suns heat doesnt warm up the vaccum like it does water and air. I know they are diffrent things but how come?
WERTY1112 2 years ago
it's simple; becouse vacuum is NOTHING;
can you warm up nothing ? no. as simple as that
air, water, earth... it's all a collection of atoms, and heat is our interpretation of the micro-kinetic energy of those atoms; if there are no atoms (vacuum), then there can simply be no heat...
theVegetroniX 2 years ago
From what I have come to understand is that when physicists says "nothing" they alwaysmean 'something'.
Even in nothingness there is always something.
Why cant these particles warm up?
WERTY1112 2 years ago
the vaccum of space isnt nothing.
TheUFOeffect 2 years ago
Temperature is actually movement of matter (atoms and molecules). Higher temprature means more movement and higher energy.
Vacumm is lack of matter, so there's no temprature in space. Lets say you go out in vaccum of space with a space suit, you and your suit will start loosing heat because of heat radiation you are emitting, but If you are close enough to the sun and the sun is visible then you will get hot by the suns radiation.
kavinho 2 years ago
there is a temperature in space. 3k. or -270 celcius.
TheUFOeffect 2 years ago
@TheUFOeffect
Sorry there's always a bit matter even in the "vaccum" of space, but the sparsity of it is what makes the exchange of temprature to be slower than what you expect of something that' 3k. If you have been in a 100 degree celcius sauna you understand this concept. 100 degree celcius water is boiling water, but 100 degree celcius air does not contain as much energy density to heat you up that fast, but you will get cooked if you stay there long enough
kavinho 8 months ago