In other places, they have progressed to the point of mastering machines, with giant cities floating above the surface of the world by a form of magnetic levitation similar to mag-lev trains. Larry Niven is quite right in that significant evolution of the inhabitants will most likely take place during the lifespan of the Ringworld. alien traders reached the Humans first, thus giving them a hyper drive that enabled them to win the first man-Kzin war & preventing the human race being enslaved by the Kzin. It is likely that a highly advanced civilisation will not set out to build a Ringworld. Wharfinger's Law of Diminishing SF Sequels. It would appear completely flat to the inhabitants. If the ring didn't hit the sun and melt, it would at least get close enough to burn up all the inhabitants. We are offered no indication as to what the Ringworld's climate system would be like. But in another sense, unlike a planet, it has a human (sapient?) This will contain the consequences of a catastrophic air loss (e.g., a meteorite strike or nuclear war) to one section. Skip the rest of the writeup if you haven't read the books. And he gets twice as much sex as any of the other characters. narrower or wider Ringworld would work as well. Science fiction writer Larry Niven developed the idea of the Ringworld from Freeman Dyson's 'Dyson Sphere', a sphere big enough to contain a star and absorb all the energy emitted by the star. There's no North on the Ringworld. Take a long strip of metal. In the process, one of Nessus's two heads is cut off (Don't worry, it doesn't contain his brain), and he spends the rest of the story unconscious. "The ring masses two times ten to the thirtieth power in grams, measures .95 times ten to the eighth power miles in radius, and something less than ten to the sixth power miles across. Note that there is one drawback to a Ringworld over a Dysan sphere. Ringworld is a 1970 science fiction novel by Larry Niven, set in his Known Space universe and considered a classic of science fiction literature.

And all of that surface designed to your specifications, not subject to the vagarities of geography. First off, you could pick a smaller and/or less luminous star and build a smaller Ringworld. They find a floating tower, with a working map of the Ringworld inside. If the ramp is 100m wide, and underneath it slopes slightly back towards the rim wall at 89 degrees, it will merge with the rim wall's usual thickness after 8.9 km, Jupiter to build it, If you find it - how do you tow it to the right solar system?

He is called Seeker because he is travelling to the base of the arch. The top of the mountain is open, and they dive through, flung out to deep space, dragging the Lying Bastard behind them, and are free.

This is not the right scale for either "Orbitals" or the original Niven Ringworld. In the second and later books, Niven also took the opportunity to introduce the concept of a number of almost-human species living together. These are similar to the Ringworld but much smaller. a solid shell around the sun) is that there is no gravity inside, and thus no way to stick the air to the surface short of some as-yet-undiscovered But this only provides gravity around an equatorial band of the sphere. Put an atmosphere on the inner surface.

own smaller ring. We now know the force we need to balance and the acceleration we have available, and so can solve for the mass: 1.940352E28=m*.028733726

These are in fact 'along the ring'. 30 hours = 1 Ringworld day 

Ringworld is brilliant idea which, like most of them is obvious in retrospect: One problem with the science fiction version of Dyson sphere (i.e. Standing on the inside surface of the ring, you will feel centripetal force which will feel the same as the force of gravity.

It is built structure larger than a planet: a ring around a star. Can you imagine the energy needed to pull all of the mass of Jupiter out of it's own gravity well?

Given that making the Ringworld would require a few aeons of progress in physics and large-scale construction techniques, we can hope for some advances in AI and smart materials as well in this time. This is insignificant compared with the mass of the star at the centre. Adjustments made via a few large mechanisms controlled by small number of human (or equivalent biological sentient) operators at a central point. Niven describes the scrith on the floor of the ring as being slippery, almost IMHO, all parts of a structure this important would have detail, design, complexity and variation on every scale from the microscopic to the largest. It contains contributions from countless numbers of travellers and researchers. Although the inhabitable surface of the Ringworld is curved, it is much flatter than the surface of the Earth, having a much bigger radius.

You need as much mass as We are privy to his thoughts and observations.
"Chiron, how big is this ring? The pilot of the spaceship will have to get her craft up to 2.7 million mph to match the rotational speed of the Ringworld before falling into a landing bay.

This is a major influence on climate. There they tie Pril's building to the Lying Bastard using the wire, and drive the building up the slopes of the Fist of God. A thousand miles (1,600 km) high should be enough to keep in the atmosphere. a point on the Ringworld makes in 8.78 earth days, and so it moves 41 times as It was a million miles across. Once this is in place, it would be possible to build onto this ring with "Plates" (CF Iain Banks) that support domed or walled 1-gravity habitats that simulate a planet's surface, as a city grows building by building. Instead, the whole ring orbits around a star in such a way that the centre of the ring traces a circle around the star.

All content copyright © original author unless stated otherwise. NB: major spoilers ahead. It is just too large. There is tension, due to the revelation that the puppeteers have intervened (indirectly of course) in human & Kzin history, by ensuring that a wandering band of Therefore it needs active stabilistaion (e.g. I would guess that you pick a star with the materials on hand.
This too will be eroded by the rivers. How do you fix one if it blows? than the impossible "story of earth and everyone on it". Niven's idea was to use just a narrow band of the sphere around the equator, and to flatten it so that apparent gravity is straight down everywhere in the world. She is several thousand years old, but still young due to anti-aging drugs better than those available to Louis. Pril elects to come back to earthly civilisation. Louis is upset that she abandoned him (I don't see why, he did it to her first). The concept of a Ringworld was subsequently used by other authors, in modified versions such as the small rings in the X-Box game Halo, or the orbitals of Iain M Banks. An "Orbital," as in the Culture novels, is about a million miles in diameter, which would be four times the distance between Earth and Moon.

Louis hatches a plan, and the party retrace their path. The apex of the arch would have an apparent width of 1/2 as wide as the sun, it being of the same width but twice as far away.

It was the dialogue that strained my suspension of disbelief. In order to get it up to reasonable levels, you'll either need to make the star bigger or the Ringworld smaller. After the publication of Ringworld, it was pointed out to Niven that his vast construction was unstable. The inner surface has a living space three million times as big as the surface of the Earth, so there's plenty of room for people to live, to spread out, to have as much space as they want. or, an extra-large writeup for an extra-large concept.

Having airlocks built into the floor of the Ringworld is an invitation for trouble later on. Teela and from the impact of a huge meteorite from underneath, where the meteor defences Make it a flat ribbon around the sun, with walls at the edges to keep the air from spilling off the sides. I was an empty plate. A planet is stable in its orbit - it stays there.

Teela Brown's luck is held to have failed. mass = 2 * 10 30 grams A series of flat plates strung together with gaps in between them circle around the star between it and the Ringworld, blocking off the sun from parts of the surface while letting the light through to other parts. muscles in tow.

You could in theory build it in open space and then move it to the star, but the most likely source of construction material is a planet, and these are usually found already orbiting stars. His behaviour however is erratic.

So it must be designed to outlast species, not to mention their civilisations. No problem - there's plenty of space. Intuition suggests that it might, but intuition does not always work when scaled up so large.

This doesn't sound so fast, but it means that the surface is actually travelling at a speed of 2.7 million miles per hour (4.3 million km per hour). Ask any resident of Kansas. Nessus is by puppeteer standards mad.

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