This is not the perfect match for a planet however, as there is no sunrise or sunset in Ringworld, and when not covered by a shadow square, the sun is always at high noon. The game X3 Terran Conflict features a free-floating orbital ring around the Earth, which is shattered by an explosion and subsequently de-orbited in X3: Albion Prelude. Earth is the third planet from the Sun and is the largest of the terrestrial planets.The Earth is the only planet in our solar system not to be named after a Greek or Roman deity. A "Ringworld", or more formally, a "Niven ring", has become the generic term for such a structure, which is an example of what science fiction fans call a "Big Dumb Object", or more formally a megastructure. In the Warhammer 40,000 universe, Mars has a large orbital ring called the Ring of Iron. The Ringworld is an artificial world with a surface area three million times larger than Earth's, built in the shape of a giant ring-shaped ribbon a million miles wide and with a diameter of 186 million miles. In 1982, Soviet inventor Anatoly Yunitskiy also proposed an electromagnetic track encircling the Earth, which he called "by wheel into space"[6] (later, "String Transportation System"). The anime Mobile Suit Gundam 00 also prominently features an orbital ring, which consists primarily of linked solar panels. Not in orbit, but riding on this ring, supported electromagnetically on superconducting magnets, are ring stations that stay in one place above some designated point on Earth. Also, it is transparent to large magnetic fields. In 1963, the United States launched half a billion whisker-thin copper wires into orbit in an attempt to install a The adventurers surmised that its construction consumed literally all the planets in that system, down to the last asteroid and/or moon, as the Ringworld star has no other bodies in orbit. The Earth was formed approximately 4.54 billion years ago and is the only known planet to support life. The Ringworld is described as having a mass approximately equal to the sum of all the planets in our solar system. Space junk can be bad news for an orbiting satellite. The shadow squares provide another of the imperfections "clarified" in Ringworld's Children, as five shadow squares of greater length, orbiting retrograde would provide a better day-night cycle, with less twilight. It was built by the Pak, who later through infighting left it mostly Protector free. Orbital rings are used extensively in the collaborative fiction worldbuilding website Orion's Arm.[10]. Saturn and its spectacular rings, as imaged by the Hubble Space Telescope on July 4, 2020. Space Ring Could Shade Earth and Stop Global W A wild idea to combat global warming suggests creating an artificial ring of small particles or spacecrafts around Earth … Earth's moon is 2,159 miles (3,474 km) wide, about one-fourth of Earth's diameter. The relatively thin layer of scrith that forms the floor of the Ringworld blocks the passage of 40% of the neutrinos that encounter it, equivalent to almost a light year of lead. Arthur C. Clarke's 3001: The Final Odyssey (1997) features an orbital ring held aloft by four enormous inhabitable towers (assumed successors to space elevators) at the Equator. This ring effectively provides near unlimited power to earth. The manga Battle Angel Alita (1990-1995) prominently features a slightly deteriorated orbital ring. It rotates, providing an artificial gravity equivalent to 99.2% of Earth's gravity by way of Centrifugal force. Ringworld has a habitable flat inner surface equivalent in area to approximately three million Earth-sized planets. An orbital ring is a concept of an enormous artificial ring placed around the Earth that rotates at an angular rate that is faster than the rotation of the Earth. Sort of. Paul Birch, "Orbital Ring Systems and Jacob's Ladders - III". Scrith is said to have been artificially produced through the transmutation of matter. The ring measures 2.6 million light-years across. The rings visible here are the A ring (at top) with the Keeler and Encke gaps visible, and the F ring (at bottom). In fact, the earth did once have a ring—as part of the formation of our moon, ironically enough. Later in the series the ring also shows space stations mounted on its surface. On February 11, 2009, a U.S. communications satellite owned by a private company called Iridium collided with a non-functioning Russian satellite. The researchers spotted the ring unexpectedly while they were mapping the distribution of dark matter within the galaxy cluster Cl 0024+17 (ZwCl 0024+1652), located 5 billion light-years from Earth. Other science fiction authors have devised their own variants of Niven's Ringworld, notably Iain M. Banks' Culture Orbitals, best described as miniature Ringworlds, and the ring-shaped Halo structure of the video game series of the same name. Walls 1000 miles tall along the edges retain the atmosphere. Thus, large thrusters must be incorporated into the design to keep it centered about its star. Due to its enormous strength, scrith is impervious to most weapons. The tensile strength of the material required would be on the same order as the strong nuclear force, according to Niven — since the artificial gravity is the same as normal gravity, the structure is comparable with a bridge with an extremely long span; nothing even remotely strong enough is known to exist in nature. 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-derived hardware, whereas it could fall to $15 billion with space-based manufacturing, assuming a large orbital manufacturing facility is available to provide the initial 180,000 tons of steel, aluminum, and slag at a low cost, and even lower with orbital rings around the Moon. If such a structure were built it could indeed provide a huge habitable inner surface, but the energy required to construct it and set it rotating is so significant (several centuries' worth of the total energy output from the Sun) that without as-yet unimagined energy sources becoming available, it is hard to see how this construction could ever be possible in a time frame acceptable to humans. If Earth were the size of a nickel, the Moon would be about as big as a coffee bean. The majority of the surface is land interspersed with shallow, freshwater seas. By precessing the ring once every 24 hours, the Orbital Ring will hover above any meridian selected on the surface of the Earth. A new image from NASA's Cassini spacecraft shows planet Earth as a point of light between the icy rings of Saturn. What if Earth had rings? Men's Wedding Bands & Rings View our broad selection of men's wedding bands in styles ranging from classic to unique designs. The "Other Ocean" has many maps of a single world: the Pak Homeworld. The cables which dangle from the ring are now geostationary without having to reach geostationary altitude, or without having to be placed into the equatorial plane. The Ringworld is an artificial ring about one million miles wide and approximately the diameter of Earth's orbit (which makes it about 600 million miles in circumference), encircling a Sol-type star. Larry Niven Wiki is a FANDOM Books Community. To provide an approximation of the day–night cycle common to planets, Ringworld was also provided with a separate ring of "shadow squares" linked together (by "shadow square wires") in a ring close to the star, rotating at slightly faster than the Ringworld's spin, providing a lot of twilight, as well as a day-night cycle. But there’s a … The anime series Kiddy Grade also uses orbital rings as a launch and docking bay for spaceships. 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.[3][4][5]. [1][2] The orbital ring concept requires a method of stabilizing the ring. The original orbital ring concept is related to the space fountain, space elevator and launch loop. Andrew Meulenberg and his students, from 2008 to 2011, presented and published a number of papers based on types and applications of low-Earth-orbital rings as humanity's "stepping-stones-to-space".

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