Captain Nemo wrote on Dec 27
th, 2018 at 1:14pm:
Wow the guy in that video is a moron.
I liked this reply to him:
If you could somehow stick your unprotected hand out into thermosphere or exosphere you would not get burned. The high temperature in science books and in your "Google" searches indicates the amount of the energy absorbed by the molecules in the various layers but there so few molecules in these layers that the total number of molecules is not enough to heat your skin. The temperature in the exosphere would feel extremely cold simply due to the fact that it's mostly made up of a vacuum (before the true vacuum of outer space begins). 'Heat', in this case, can be understood as the speed at which molecules or atoms move around. If there are very few molecules in an area, such as in the exosphere, there's not going to be very much heat transferred between the different molecules.
One could understand the exosphere as being 'hot' because the molecules that do exist there tend to move around at a very fast pace by themselves. But you are not comparing air temperature like you would find at Earths surface. The exosphere is a near vacuum and thus has so few molecules that heat won't be transferred between molecules, making the entire area feel very cold if you were somehow able to experience it without protection.
Thermos brand beverage containers have a glass liner that has most of the air pulled out of it with a vacuum pump. This vacuum is what allows the thermos container to work so well. With so few molecules in the vacuum, neither heat or cold will transfer effectively. This makes a vacuum one of the best insulators known to mankind. The glass is also coated with an aluminized mirror-like finish that prevents heat, in the form of visible or infrared light, from radiating in or out of the container.
This is typical of the flawed science you guys hang your hats on with all of your retarded theories.
Here are sources that confirm what I'm saying:
https://www.windows2universe.org/earth/Atmosphere/exosphere_temperature.html
https://www.weather.gov/jetstream/layers
Captain Nemo sir I would like to inform you that you’re talking bullsh!t.
When electromagnetic radiation hits an object in a vacuum it will heat up very quickly not unlike your microwave sir.
I know microwaves are not a vacuum, thanks.
Because the electromagnetic radiation is exciting the object itself and the atoms and molecules within that object.
Doesn’t matter about its surroundings like atmospheric particles because it’s in a direct line with the electromagnetic waves or sunlight.
Electromagnetic radiation / Thermal radiation doesn’t need heat flow in the atmosphere to occur from one object to another to deliver its payload.
After all how does the heat reach us from the sun in such a big vacuum.
Granted there should be some minor convection and conduction because particles of the sun do reach the Earth in the form of a wind that crashes into our electro magnetic sphere.
So what will happen to say an aluminum skinned space craft that is flying in the thermosphere or the exosphere, it will absorb this electromagnetic radiation or energy in the form of heat radiation and transfer it to its surroundings.
The molecules in the aluminium skin will get excited and start to move around heating the entire skin up.
While the side of the space craft that is exposed to the sunlight will be hotter than the cold side in the shade the heat from the hot side will transfer and flow to the cold side as heat flows to colder objects or part of those objects.
Not unlike heating a steel plate with an oxy torch, you may get a spot white hot turn the oxy torch off and the heat will transfer to the entire plate while losing heat to the atmosphere and objects that it is contact with through the three modes of heat transfer.
This will continue to occur to the spacecraft until thermal equilibrium has been reached provided that the wave band of the electromagnetic energy / thermal radiation stays constant.
Thermal equilibrium meaning that the aluminum skin radiates just as much heat out into space and inside the spacecraft as what it is absorbing from the sun.
By this time the skin on the entire spacecraft will be of a uniform temperature and for whoever is inside it, it will be like a furnace.
So captain Nemo once again your talking through your behind.