NASA tests ROSA on space station

NASA test Roll out solar Array on the space station that can one day power satellites and spacecrafts.It also has the potential to make solar arrays thinner for satellite radio and television,weather forecast etc. 

China unveils world's first virtual express train

The new train operates on virtual track using sensor techology instead of metal rails.The new trains are battery powered and non-polluting.It can travel 25kms in distance after charging for 10mts.

Floating Dock for Navy by L & T

First indigeniously build floating dock to repair ships have been build by L & T and launched at Kattupalli,North of Chennai.It can take upto 8000 tonne ships with draught up to 7mtrs.Floating Dock will move to Andamans to be used fro assets not only for Navy bot for others also.