"Releasing a stretched slinky from the top in mid air."
"Slip Face On A Sand Dune"
"What amazing ability !!!!!"
"The large stone walls in Sasksaywaman, Peru, built in the 15th century. The boulders were carefully cut to fit tightly without mortar, with some weighing up to 200 metric tonnes."
"Magnetic robot power washer used to clean the side of a ship"
"Earth at night is simply beautiful."
"Japan created a robot with a shooting range that rivals Curry"
"The kite spider is moving its legs"
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