Activity for SilverCookies‭

Type	On...	Excerpt	Status	Date
Question	—	Where to place an artificial oceanic island? I want to build a seastead in international waters that starts small. It has to be in the Atlantic, preferably in the northern hemisphere close to either the american or european continent. Due to the initial small size of the seastead what would be a place with calm waters and relatively free of s... (more)	—	over 4 years ago
Question	—	Skysteading: How to build a flying city I am building a city in the sky; it floats thanks to hot air balloons and hydrogen. The main issue I have is how to make it grow, as this is not some kind of giant structure to start, it is a small(ish) structure that is supposed to grow as the economy grows and more people want to join for whatever ... (more)	—	almost 5 years ago
Question	—	Where to place an artificial gland in the human body? An artificial endocrine gland is cultured in the lab and is to be inserted in a person. This gland functions by secreting special substances in the blood stream. It needs to be placed in a position where it can be well vascularized, protected, and stable (close to a bone?). It must be an anatomical... (more)	—	over 5 years ago
Question	—	The lava waterfall door Some areas of the evil meant lair are not for the eyes of the average minion. There is only one way in and out of this area, there is no door blocking the way, but a lava waterfall pouring from the ceiling, completely covering the section of the corridor. The lava is actively recycled and a mechanism... (more)	—	about 6 years ago
Question	—	Geoengineering for dummies My human civilization is facing (much like us) the threat of anthropogenic climate change. For whatever reasons, they are unwilling to take action by reducing the use of fossil fuels and refuse to use "normal" geoengineering. Ultimately, they decide for a rather unusual (and stupid) solution: air-co... (more)	—	about 6 years ago
Question	—	Can we shoot bullets into a specific LEO? Using only existing technologies, can we shoot 4-5 kg bullets into a stable, specific Low Earth Orbit (at least 1000 km)? The bullets don't contain "hardware" such as electronics, so acceleration is no issue. Coilgun and other form of electromagnetic acceleration are also allowed; other tricks like ... (more)	—	about 7 years ago
Question	—	Jupiter becomes a star, how long have we left? (2010) "Your children will be born in a world of two suns. They will never know a sky without them. You can tell them that you remember when there was a pitch black sky with no bright star, and people feared the night." Except, I am very much afraid Christopher's children will never be born. So Jupiter be... (more)	—	over 7 years ago
Question	—	What is the highest pressure humans can live in in comfort? These people inhabit an underwater city. In the city there are pools that connect the dry habitat with the outside ocean, this of course mean that the habitat is unpressurized and therefore the internal atmospheric pressure is the same as the pressure at the bottom of the sea. So my question is: ho... (more)	—	almost 8 years ago
Question	—	an artificial fission star A K2+ civilization wants to build a fission star, a huge mass of fissile material which doesn't collapse due to the radiation emitted by its fission decay. I know there are reactors like the aqueous homogeneous reactor that are self regulating and even naturally occurring reactors exist, so why not a... (more)	—	about 8 years ago
Question	—	0g pool: can I keep a big ball of water in space? I have a super luxury space hotel. It has artificial gravity in the living and shopping area and 0g in some parts of the recreational area. There is a 0g pool available for the guests. I want it to be a large ball of water 10m in diameter. Can it work? I know water can be kept together by surface ... (more)	—	about 8 years ago
Question	—	A different artificial gravity: Ultradense material Guests of this large space station enjoy Earth-like gravity (80-90% minimum). How? Well the space station is so massive it has its own gravity. The disk shaped "core" is made with ultradense materials with an overall of 20-30 g/cm3 similar to Iridium or Osmium (the densest elements). I thought tha... (more)	—	about 8 years ago
Question	—	A simple, yet effective, respirator These settlers live on a planet, which surface temperature and pressure are compatible with human life. However humans cannot breath its atmosphere. The gas in the atmosphere is not necessarily toxic or extremely dangerous (skin exposure is ok), but it will eventually kill a person (or maybe the atmo... (more)	—	over 8 years ago
Question	—	Creaturebuilding: finless waterdwelling animal This creature is a waterdweller that somewhat resemble a fish. It lives in the retreating oceans of a planet orbiting a star that is reaching its red giant stage. The planet is now experiencing very high levels of radiation and life is becoming extinct... The creature is a photosynthetic animal so i... (more)	—	over 8 years ago
Question	—	Building and stabilizing a SupraWorld. Imagine a SupraWorld being built around a gas giant like Jupiter. To have a 1g gravity on the surface the resulting SupraWorld would have to be less than twice the radius of the giant (my calculation; could be wrong). I have unobtanium but it only provides impossible structural resistance and nothing... (more)	—	over 8 years ago
Question	—	Floating buildings on Venus. What shapes are credible? Venus is being paraterraformed with floating cities. Mechanical machines collect material from the surface and send it floating at an altitude of about 50 Km where conditions are more Earth-like. Here the material is assembled into building. The "city" is not in one piece. Each building has its own... (more)	—	over 8 years ago
Question	—	How can self-replicating machines collect and sort raw material? I am already aware of the concept of the fusion torch. But I would like to consider other solutions for separation of raw materials that can be automated but are less "extreme" and closer to current technologies. My machines are supposed to mine mostly asteroids (0g no atmosphere), moons and moonl... (more)	—	over 8 years ago
Question	—	Can machines raise socially functioning people? In this world a secret society "farms" people with desired features (personality appearances etc.). They have ectogenesis of course; but they can't afford personnel to take care of the "products" until they reach maturity (14-20 years depending on the end uses). What kind of machines/software are nee... (more)	—	over 8 years ago
Question	—	Can I have a planetary liquid or gas ring system? My space colonists have found a home in the ring system of a (maybe chthonian) gas giant. The rings are based on Saturn's in terms of appearance, but can they be made of gases or liquid (maybe droplets) instead of rocks? I know it doesn't sound right since rings are made of solid materials, but I kno... (more)	—	over 8 years ago
Question	—	How do I store Helium in a large space colony? My space colonies are mainly located onto large, partialy terraformed moons in our solar system. They still travel using rockets but due to their vessels' large size they need very powerful propulsion system. Their fuel is metastable Helium. For this reason I need a way to store it for long period of... (more)	—	over 8 years ago