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The Daya Bay Reactor Neutrino Experiment is a China -based multinational particle physics project studying neutrinos, in particular neutrino oscillations. The multinational collaboration includes researchers from China, Chile, the United States, Taiwan (Republic of China), Russia, and the Czech Republic.
The ExoMars Trace Gas Orbiter (TGO or ExoMars Orbiter) is a collaborative project between the European Space Agency (ESA) and the Russian Roscosmos agency that sent an atmospheric research orbiter and the Schiaparelli demonstration lander to Mars in 2016 as part of the European-led ExoMars programme. [ 7 ][ 8 ][ 9 ]
- Theory
- Debate on Fermi's Paradox
- Applications For Self-Replicating Spacecraft
- In Fiction
Von Neumann argued that the most effective way of performing large-scale mining operations such as mining an entire moon or asteroid belt would be by self-replicating spacecraft, taking advantage of their exponential growth. In theory, a self-replicating spacecraft could be sent to a neighbouring planetary system, where it would seek out raw materi...
In 1981, Frank Tipler put forth an argument that extraterrestrial intelligences do not exist, based on the fact that von Neumann probes have not been observed. Given even a moderate rate of replication and the history of the galaxy, such probes should already be common throughout space and thus, we should have already encountered them. Because we h...
The details of the mission of self-replicating starships can vary widely from proposal to proposal, and the only common trait is the self-replicating nature.
Von Neumann probes
1. 2001: A Space Odyssey: The monoliths in Arthur C. Clarke's book and Stanley Kubrick's film 2001: A Space Odyssey were intended to be self-replicating probes, though the artifacts in "The Sentinel", Clarke's original short story upon which 2001was based, were not. The film was to begin with a series of scientists explaining how probes like these would be the most efficient method of exploring outer space. Kubrick cut the opening segment from his film at the last minute, however, and these m...
Berserkers
1. In the science fiction short story collection Berserker by Fred Saberhagen, a series of short stories include accounts of battles fought against extremely destructive Berserker machines. This and subsequent books set in the same fictional universeare the origin of the term "Berserker probe". 2. In the 2003 miniseries reboot of Battlestar Galactica (and the subsequent 2004 series) the Cylons are similar to Berserkers in their wish to destroy human life. They were created by humans in a grou...
Replicating seeder ships
1. Code of the Lifemaker by James P. Hogandescribes the evolution of a society of humanoid-like robots who inhabit Saturn's moon Titan. The sentient machines are descended from an uncrewed factory ship that was to be self replicating, but suffered radiation damage and went off course, eventually landing on Titan around 1,000,000 BC. 2. Manifold: Space, Stephen Baxter's novel, starts with the discovery of alien self-replicating machines active within the Solar system. 3. In the Metroid Primesu...
Starship is a two-stage fully reusable super heavy-lift launch vehicle under development by SpaceX. As of September 2024, it is the most massive and powerful vehicle ever to fly. [4] . SpaceX has developed Starship with the intention of lowering launch costs using economies of scale. [5] .
Four presidents died in office of natural causes (William Henry Harrison, Zachary Taylor, Warren G. Harding, and Franklin D. Roosevelt), four were assassinated (Abraham Lincoln, James A. Garfield, William McKinley, and John F. Kennedy), and one resigned (Richard Nixon, facing impeachment and removal from office). [ 9 ]
Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at seventh in total abundance in the Milky Way and the Solar System. At standard temperature and pressure, two atoms of the element bond to form N 2, a colorless and odorless diatomic gas.
A transistor is a semiconductor device used to amplify or switch electrical signals and power. It is one of the basic building blocks of modern electronics. [1] . It is composed of semiconductor material, usually with at least three terminals for connection to an electronic circuit.
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