MIT stories

 
Thirsty? No? You will be. It's just a matter of time. It's also just a matter of time until the expansion of humanity makes fresh water a more precious commodity than a new iPhone, but graphene sheets with lots of little holes in them could soon solve the problem by making fresh water from salt water with incredible efficiency.
 
Do you ever watch your local TV weather report and find yourself overcome with excruciating jealousy due to the fact you don't have your own personal Doppler radar? Of course you do. It's a normal reaction. Why do they get all that neat radar gear while you remain utterly blind to the velocities at which clouds — let alone everyday objects — are speeding to or away from you?
 
You've seen this in crime dramas: hard bitten detective employs computer genius with attitude to conjure vital clues from grainy and low-resolution surveillance video by using some unspecified form of "enhancement." Scoff all you like, but MIT computer geniuses can now enhance video enough to track your heart beating.
 
Last week we posted about MIT students turning a building into a giant Tetris game. Well, they're at it again, but this time they added a ginormous Dalek replica (from Doctor Who, of course) to the top of a different campus building.
 
The folks at MIT's Media Lab are teaching a robotic arm to spin material into webs, just like a spider would. Why? It's either so robot armies could easily cocoon captured humans a few years from now, or maybe so robots could spin flexible structures that could be attached to existing buildings. Why would we want that? Keep reading.

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