First they must use their sails and the weak pressure of sunlight to fight their way uphill against the gravity of Saturn. ... Its output is electricity, which it produces at moderate efficiency, together with the transmission lines to deliver the electricity ... aquot;If solar energy is so abundant and so free from problems of pollution, why are we not already using it on a large scale? ... and related concepts have appeared frequently in the science Ik i ion literature.693 3.7 Self- Replicating Automatedanbsp;...
|Title||:||Kinematic Self-replicating Machines|
|Author||:||Robert A. Freitas, Ralph Charles Merkle|
|Publisher||:||Landes Bioscience - 2004-01-01|