Mind boggling facts that make you go..

the movement of the air molecules (and collisions) IS air pressure - what else do you think is causing it?
I was talking about standard room temperature and the 1000mph is approximate.


This the one that always gets me with open airlocks etc in space dramas.

There would be none of this hanging on with one hand while you operate the emergency close with the other. All the air would be gone in a flash.

:p
 
the movement of the air molecules (and collisions) IS air pressure - what else do you think is causing it?
I was talking about standard room temperature and the 1000mph is approximate.

Er no, its temperature, it is the energy of the atoms and electrons which are proportionate to temperature. Cool anything down to absolute zero, all movement stops.

Pressure is a function of the energy of the molecules, which is a function of the energy of the electrons/atoms, which is a function of temperature.

It is the movement of the atoms/molecules which generates the pressure in the first place.

Cool down a gas in a container, and the pressure will drop to zero, if cooled enough, and dependant on what type of pressure you are measuring etc.
 
Mind boggling facts that make you go..

Brexit is factually the absolute worst option the UK can do in every way - we are far better off staying in the EU by every measure and according to every expert.

...Woah!!!

(before you get upset - its a fact! lol, this is a fact thread is it not?)
 
If you and another object are in the same orbit and you want to travel towards it, you would have to thrust away from it.

If you could get a teaspoon of a neutron star, it would weigh more than a mountain.

If you were able to fold a piece of paper 103 times, it would be thicker than the observable universe.

Calculating pi past 60 decimal places has no application in the real world because that is all that would be needed to calculate the angle of a planck length (the smallest unit of distance) at the edge of the observable universe.

Sea plankton are growing on the outside of the ISS.

The Sun contains 99.85% of all the matter in the Solar System.

From the perspective of a light beam,it's travel time is instant, regardless of distance as time slows to halt at the speed of light.

If like metals in space touch, they instantly can weld together.

Technically the moon is not a true satellite of Earth because it is affected by the sun's gravity more that the Earth's. Some even consider the Earth and Moon as a binary system.

The man who discovered Uranus, William Herschel, wanted to call it "George".

There is a void 50 million light years in diameter, representing approximately 0.27% of the diameter of the known universe that is completely empty and it is getting bigger.

After returning from space, an astronaut can sometimes be two inches taller from the cartilage expanding in their backs.

Earth is struck by 5 pounds of sunlight every second.

Technically, we live inside the sun.

WISE 1828+2650 is a star that is only 28 degrees centigrade.

If it were brighter, the Andromeda Galaxy would appear six times larger than the moon.

The average density of the universe is one hydrogen atom per cubic meter.

The Sunset is an illusion. You're not actually looking at the sun but rather the light from the sun bent around the Earth due to the atmosphere. The sun sets ten minutes before you see it and it rises ten minutes after you see the sun rise.

It is impossible to write out the numerical representation of a googleplex with pen and ink.

We have no idea what 96% of the universe is.

Saturn would float in a large enough body of water.
 
Well, sugar is about 16 kJ/gram.

500 * 16 kJ = 8 MJ

3600 MJ = 1 MWh

8 MJ/3600 MJ = 0.00222 MWh, therefore it looks like the above is several orders of magnitude out...
Ah, but you are assuming we are eating it and metabolising it. I am assuming that, like the process of nuclear fission or fusion, but entirely efficient, we are converting that mass to energy using e=mc^2
 
Rubik’s Cube -

If one cube was scrambled for each configuration, once you placed them one by one you would get the astounding number of 261 light years! Alternatively, imagine that they would cover the Earth 271 times in different layers! Do you want more? Well, if you turned one cube per second, you would need 1,400 trillion years for all the permutations to be covered!
 
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