I was getting confused about fusion and fission the other day. Is there a difference? Yes, there is looking at fission it’s like the difference between chalk and cheese, one is nice and cuddly the other is prickly and unfriendly. Fission is the unfriendly one and is the one used in nuclear power stop. The [...]

The greatest restriction to space travel as far as I can see is that the fuel that is needed to propel the vehicle is carried on the spacecraft. If we use energy to travel the universe in a different way then that fuel may not have to be carried or just a little fuel may [...]