BIMnewsmanagerComments Off on I rode China’s superfast bullet train that could go from New York to Chicago in 4.5 hours — and it shows how far behind the US really is
BIMnewsmanagerComments Off on Airbus is testing a big harpoon to snare rogue or redundant satellites and pull them out of the sky. The 1m-long projectile would be attached, through a strong tether, to a chase spacecraft. The chase vehicle would then drag its prey down into the atmosphere to burn to destruction.