Activity for Anixx‭

Type	On...	Excerpt	Status	Date
Question	—	Artificial oxygen oasis in an otherwise CO2 atmosphere I wonder if it is possible to install artificial equipment that would exhaust oxygen into air in otherwise CO2 atmosphere so that locally people could breath in open air without any kind of tent or dome? I mean, imagine a public park with walking lanes with benches and there are oxygen holes in the ... (more)	—	over 4 years ago
Question	—	Would near-lightspeed spaceships have an aerodynamic shape? At speeds near the speed of light, interstellar particles and gas may affect the movement of the ship, and microscopic particles may even badly damage the ship. Would not it make sense to make the shape aerodynamic so to reduce the damage and drag? Maybe the nose should even be armored? Maybe the sh... (more)	—	over 4 years ago
Question	—	Can birds evolve without trees? I wonder whether the birds or other flying animals heavier than air could evolve without trees of other protruding objects? (more)	—	over 5 years ago
Question	—	A planet illuminated by a black hole? Is it possible for a planet to be heated and illuminated by a black hole due to Hawking radiation at the same intensity as by a star? What mass and size should a black hole have to produce the same amount of radiation as a star? How long it can be in such a state? What will be the black hole's size ... (more)	—	over 5 years ago
Question	—	How realistic are ice plants? How realistic is it that in the future someone invents plants that can live on top of the Antarctic ice sheet or are floating on ice like in the Arctic? (more)	—	over 7 years ago
Question	—	What conditions may lead to an intelligent civilization employing only bio-machines? Suppose a civilization in which every possible appliance is a bio-machine. There are automobiles, but each one has a human-like head under the hood. Each datacenter is a bunch of over-grown brains. There are artificial udders that produce milk without a cow. Each house is living as well. When you sit... (more)	—	almost 8 years ago
Question	—	What would happen if all dark energy instantly converted to radiation due to vacuum metastability event? What would happen if all dark energy (cosmological constant) instantly converted to radiation due to vacuum metastability event, while otherwise vacuum properties remain the same? Dark energy density is $10^{-27} kg/m^3$. How will it affect Earth and the Sun? (more)	—	about 8 years ago
Question	—	Can non-intelligent life naturally evolve the ability to space travel and to live in interplanetary space? Can non-intelligent life forms evolve to leave their home planet and travel in interplanetary space, for instance, grow on atmosphereless icy moons and transfere spores over interplanetary space? (more)	—	about 9 years ago
Question	—	Can a planet be on a stable orbit at a Lagrangian point of a binary star system? Suppose we have a binary star system and a planet at the L4 or L5 point of the orbit of one of the stars around the other. The planet is thus illuminated by the two stars from the same distance and the angle between the stars is about 60 degrees. If the planet is tidally locked, it will be constantly... (more)	—	about 9 years ago
Question	—	How would a government prevent astronauts from making political statements? In the future a major problem arose: a habit spread among the astronauts to make political statements upon landing on a new celestial body, often the statements were unpleasant to their government. This happened not only with astronauts from one country but with several countries. What legal measure... (more)	—	over 9 years ago
Question	—	Permanent settlements on the surface of ice Suppose a planet is covered with floating ice on top of water ocean and has no dry land. Would it be possible to establish permanent settlements, cities? Particularly I am interested in technologies combating ice drift melting of ice under the constructions and utilities sinking of buildings du... (more)	—	almost 10 years ago
Question	—	Biology-centric civilization vs AI-based civilization I wonder if it possible for human civilization to evolve into two different civilizations. One is controlled by artificial intelligence (or by uploaded human minds) and the other is biology-based with all kinds of imaginable biological advances such as interconnected brains, bio-machines, specialize... (more)	—	almost 10 years ago
Question	—	Planet illuminated by blue-shifted relic radiation Are there realistic circumstances that a planet would be accelerated (either artificially or naturally) to the speed at which relic radiation becomes so blue-shifted that the planet is illuminated so as if it were in a habitable zone? I also wonder the following: Will such planet be in constant da... (more)	—	about 10 years ago
Question	—	How would solar activity change if the Sun was impacted by a planet? Suppose that a planet whose size was somewhere between the sizes of Mercury and Jupiter impacted the Sun. Would such an event change local stellar activity sufficiently enough and for long enough that Earth's climate would be affected? (more)	—	about 10 years ago