.

Similarly one may ask, how much would it cost to build a space elevator?

A space elevator built according to the Edwards proposal is estimated to cost $6 billion.

Likewise, how would a space elevator work? A space elevator is a proposed transportation system connecting the Earth's surface to space. The elevator would allow vehicles to travel to orbit or space without the use of rockets. Gravity would pull downward on the cable, while centrifugal force from the orbiting counterweight would pull upward.

Moreover, would a space elevator slow the Earth rotation?

Each time you do that, you speed the Earth up, slightly. According to their calc, about 10^14 tons, 100,000,000,000,000 tons - or about a billion US aircraft carriers in mass launched on the space elevator would slow the Earth's spin down by 1 second. Earth's mass is 10^21 tons approx.

Would a space elevator have gravity?

The space elevator, as presently conceived, is a long “cable” stretching from the surface of the planet up into space. It does not escape gravity at any point along its length. If that were not true, each point would be accelerating away from its immediate point along the cable toward someplace lower or higher.