# Are orbital rings possible?

## Are orbital rings possible?

The orbital ring can be made with nowadays material, but not as easy as shown on the video: Magnetic levitation need superconductor and magnetic field to work, not two magnets expelling each others. A passive magnetic levitation is proved mathematically unstable. Orbital ring is unstable.

### What is the ring around the Earth called?

A ring system is a disc or ring, orbiting an astronomical object, that is composed of solid material such as dust and moonlets, and is a common component of satellite systems around giant planets. A ring system around a planet is also known as a planetary ring system.

Is it possible to build a ring around Earth?

the force of any spacecraft docking on the ring will knock it out of alignment, and then, as I’ve said before, life will be completely ruined. Please don’t put a giant ring into orbit around the Earth. Just… don’t.

Which planets have rings in our solar system?

Since then, astronomers – who study the universe and everything in it, like planets – have used bigger and better telescopes to find rings around all of the outer gas giant planets: Jupiter, Saturn, Neptune and Uranus.

## How much would an orbital ring cost?

If built by launching the necessary materials from Earth, the cost for the system estimated by Birch in 1980s money was around \$31 billion (for a “bootstrap” system intended to expand to 1000 times its initial size over the following year, which would otherwise cost 31 trillion dollars) if launched using Shuttle- …

### How long would it take to build an orbital ring?

This gravity ring will act as a “near-term demonstrator,” which will take two to three years to build and launch. Once installed in orbit, its assembly will take just three days.

What would happen if Earth had rings?

Earth’s shadow would look oval-shaped on its rings, “and move as time goes by,” Scharf said. At the equator, the rings would appear to divide the sun, casting a dramatic shadow over half the world. (Image credit: Ron Miller) Likewise, the rings themselves would cast shadows on Earth.

How do orbital rings work?

An orbital ring is a concept of an artificial ring placed around a body and set rotating at such a rate that the apparent centrifugal force is large enough to counteract the force of gravity. For the Earth, the required speed is on the order of 10 km/sec, compared to a typical low Earth orbit velocity of 8 km/sec.

## What will happen if Earth had rings?

Earth’s hypothetical rings would differ in one key way from Saturn’s; they wouldn’t have ice. Earth lies much closer to the sun than Saturn does, so radiation from our star would cause any ice in Earth’s rings to sublime away. Still, even if Earth’s rings were made of rock, that might not mean they would look dark.

### What if the Earth stopped spinning for 1 second?

Have you ever wondered what would happen if the Earth stopped rotating for even one second? If you stopped Earth and you weren’t seatbelt buckled to the Earth, you would fall over and roll 800 miles an hour due East.” “It would kill everyone on Earth.

Can a terrestrial planet have rings?

The terrestrial planets are the four innermost planets in the solar system. None of the terrestrial planets have rings, although Earth does have belts of trapped radiation, as discussed below. Among the terrestrials, only Earth has a substantial planetary magnetic field.

What is an orbital ring?

Basically, an orbital ring is just a giant ring that would surround our planet. We’ll learn that orbital rings are the prelude to space and the complete colonization of our solar system in particular.

## Who invented the orbital ring system?

Paul Birch published a series of three articles in the Journal of the British Interplanetary Society in 1982 that laid out the mathematical basis of ring systems. In the simplest design of an orbital ring system, a rotating cable or possibly an inflatable space structure is placed in a low Earth orbit above the equator.

### Could an orbital ring be used as a global transportation system?

Since an orbital ring or a system of multiple orbital rings could encircle the entire planet, such a system could function as an ultra efficient and ultra cheap global transportation system. Elon Musk proposed using BFR rockets (see image above) as a planetary transportation system which could get you anywhere in the world in under one hour.

Can we build an orbital ring on Earth?

What’s nice about an orbital ring is that they could be built at an extremely low height of just above the height of mountains (and, indeed, even on the Earth’s surface or underground), though it would be preferable to build the first orbital ring hundreds of kilometers above the Earth’s surface.