TedTalks : Brian Greene talks about Why is our universe fine-tuned for life

Posted by Andreas Christodoulou

Description :

At the heart of modern cosmology is a mystery : Why does our universe appear so exquisitely tuned to create the conditions necessary for life? 

In this tour de force tour of some of science's biggest new discoveries, Brian Greene shows how the mind-boggling idea of a multiverse may hold the answer to the riddle. 

*by andreascy*

Fuel-Less Gravity Powered Airplane

Posted by Andreas Christodoulou

Description :

The Gravity plane is a very efficient use of the energy available from buoyancy, thrust, acceleration and wind. It won’t be as fast as a petroleum powered engine but it will still get from A to B. Assuming they can make enough high strength composite material to withstand the force of acceleration on the hull and wings this “amazing flying machine” would be a useful transportation option for non urgent transportation requirements. It would be nice if they actually manage to make enough of them to form a fleet and make a difference before the energy to build them runs out.

*by andreascy*