Jan 27, 2021 10:24 PM
(This post was last modified: Jan 27, 2021 11:29 PM by C C.)
Why Biden is Buying 645,000 New Electric Cars (vehicles)
https://www.scivillage.com/thread-9611-p...l#pid41697
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A cubesat will test out water as a propulsion system (travel)
https://www.universetoday.com/149820/a-c...on-system/
EXCERPT: . . . Water has plenty of advantages going for it as a propellant. Most obviously, it is not volatile or toxic, making it much easier to handle than conventional rocket fuel. One design flaw holding back the adoption of regular rocket fuel into widespread use in CubeSats is their explosive potential.
CubeSats are usually housed next to larger, more expensive satellites in the payloads of rockets. If the rocket fuel loaded into a small CubeSat would ignite unintentionally, it could completely destroy the much larger, more expensive telescope it is sitting next to. So CubeSat designers rightfully shy away from including such a dangerous propellant in their small satellite.
Without access to regular rocket fuel, designers are left with much less desirable choices for propellant, such as ion thrusters. Some do not even select a propellant system at all. This lack of ability to controllable navigate space results in defunct CubeSat cluttering up orbital trajectories as well as unintentionally deorbiting in an uncontrolled, and potentially dangerous, descent. What makes water such a special propellant is that it is completely stable under normal conditions... (MORE - details)
https://www.scivillage.com/thread-9611-p...l#pid41697
<-> <-> <-> <->
A cubesat will test out water as a propulsion system (travel)
https://www.universetoday.com/149820/a-c...on-system/
EXCERPT: . . . Water has plenty of advantages going for it as a propellant. Most obviously, it is not volatile or toxic, making it much easier to handle than conventional rocket fuel. One design flaw holding back the adoption of regular rocket fuel into widespread use in CubeSats is their explosive potential.
CubeSats are usually housed next to larger, more expensive satellites in the payloads of rockets. If the rocket fuel loaded into a small CubeSat would ignite unintentionally, it could completely destroy the much larger, more expensive telescope it is sitting next to. So CubeSat designers rightfully shy away from including such a dangerous propellant in their small satellite.
Without access to regular rocket fuel, designers are left with much less desirable choices for propellant, such as ion thrusters. Some do not even select a propellant system at all. This lack of ability to controllable navigate space results in defunct CubeSat cluttering up orbital trajectories as well as unintentionally deorbiting in an uncontrolled, and potentially dangerous, descent. What makes water such a special propellant is that it is completely stable under normal conditions... (MORE - details)