it is becaus water molecules absorb infrared wavelengths. By being placed at the top of a mountain, it will be above the clouds meaning there is less moisture in the air to disrupt the signal.
Many people think that putting a telescope on top of a mountain is so it is closer to the stars. The real reason is that by placing a telescope on the mountaintop, there is less atmosphere to look through and distort the images. There is also less light pollution on the mountain top.
There are several
On top of mountains.
Refracting, large lenses at the top which make them top heavy and harder to stabilize.
A mesa is shaped like a mountain, but has a flat top. You can simply draw a mountain and then make the top of it a large flat surface.
Etna. Volcano
On top of a mountain
scientist on earth build telescopes on top of
at the top of a mountain
On top of mountains.
top of mountain
In the sentence "At the top of the building is an observatory that has telescopes for viewing the surrounding area", the only linking verb is "is".
Refracting, large lenses at the top which make them top heavy and harder to stabilize.
at the top of the mountain you plat sled racing
The summit of the mountain is at the top.
The address of the Mountain Top Historical Society Inc is: 18 Powell St, Mountain Top, PA 18707-1138
A mountain peak is the top of a mountain.
the top of a mountain
It is not necessary to do so, as atmosphere doesn't distort radio signals as much as visible light.