Does gravity affect wireless signals?

Question

I was just wondering whether gravity affects signals..such as cell phones..wireless internet..

example:
if you place your wireless router in the top floor of your house compared to the basement..will the signal be stronger if at the top?

is that why cell towers are really high..??

Answer 1

:)

*pets you on the head*

Gravity only effects electromagnetic waves (light, radio, cellphone, etc.) at VERY high quantities-- i.e. black holes. Around black holes are the only places we see gravity being strong enough to bend light.

A change of only a few dozen feet will not make a bit of difference.

I would also like to take this moment to point out that gravity is just as strong a thousand feet above the Earth's surface as it is at the level of the first floor of your house. People who jump out of airplaines fall just as fast as people who jump out of second-floor windows.

Answer 2

Yes, gravity DOES affect electromagnetic radiation, i.e., radio waves, photons, x-rays, gamma rays and such. However, the effect is miniscule, insignificant over a short distance. The effect is known as a "gravity" lens in space where radio signals from deep space are refracted as they pass very close to something like a big star or better yet, a black hole, bending the waves so something directly behind and not in a direct line of sight can still be seen or heard. In the case of your wireless router, it is simply line of sight and distance. Cell towers are high so they "see" a larger area. Think about what you see when standing at ground level and then think about what you can see from the top of a tall building. Also, this is why radio and TV towers are placed on tall buildings and mountain tops, ot at the least a very tall tower. In essence, your router acts just like light but it can pass through the walls. The ratio is an inverse square of the change in distance. If you have a signal strength of 100 at a distance of 1 meter and then at 2 meters you will have 1/2^2=1/4= a signal strength of 25, at 3 meters, 1/9th, at 4 meters 1/16th, and so on. Over such short distance, anything less than interstellar, gravity is not going to affect you or anything you have in a measurable manner. Someone else stated gravity does not change with altitude. Not true. Gravity decreases according to the inverse square law just as any other form of field energy expanding in a sphere from a central point. Gravity is not electrmagnetic radition, but it responds to the same physical laws of the universe which govern how electromagnetic radiation expands into space. Here is a physical example: Consider a sphere with a radius of 1 meter. On the surface of this sphere, I make a square, 1 meter by 1 meter and I measure the quantity of light falling on the 1 sq meter and arrive at some number of photons. Then I connect lines from the center of the sphere to the 4 corners of the square and then continue these lines to another sphere at radius 2 meters. On this 2 meter sphere, the 4 lines mark a square 2 meters by 2 meters, and now the same amount of light which fell on the 1 meter square is now falling on 4 sq meters, so each square meter receives 1/4. Photons were neither created nor destroyed by simply traveling between the 2 spheres. This is where the inverse square law came from, and it apples to gravity as well even though we do not have a unit like photons to use as a measure, so gravity is not the same as altutude changes.

Answer 3

It's all a matter of where to place the transmitter (or receiver) so that it has a clear "view" of the receiver (or transmitter) without any obstacles lying in the signal's path to interfere. Usually that means putting the transmitter or receiver as high as possible.

I think Einstein theorized (correctly) that radio waves (and light) are affected by gravity, but the effect is entirely insignificant for any purposes that would affect radio transmissions between locations on earth.

Answer 4

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Answer 5

No. Gravity is a force between two things with mass. Signals from your wireless is excluded.

Answer 6

no signals are not at all effected by gravity....
cellular towers r placed at high to cover a larger area because if they placed them at a low hight its strength will be absorbed by trees and buildings....

Answer 7

nope, gravity doesnt affects signals,

only obstructions like thick walls or too much signals in one place which causes interferance.