I know it's an old movie (and it was an even older book before that), but I want to look at the physics of the special submarine drive in The Hunt for Red October. In the story, the Russians build a ...

Almost all satellites have some kind of thrusters aboard, but they tend to use them as little as possible to conserve chemical fuel. Reaction wheels are one way to make orientation adjustments without ...

Current Science is a fortnightly journal published since 1932 by the Current Science Association, Bangalore (India) in collaboration with the Indian Academy of Sciences. The journal covers all ...

In DT fusion 80% of the energy released goes into 14MeV neutrons, and only the remaining 20% into charged particles. Unlike the charged particles, the uncharged neutrons cannot be confined by a ...