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Four hostages have been freed from a hotel in central Mali after a standoff with Islamic extremists that left 13 people dead.

The team collected lots of water striders and took videos of their movements so they could analyze what mechanics would be necessary in order to achieve that with a tiny robot. The tiny robots can stay afloat on a water surface as well as move on it by jumping, while all the...

Researchers were able to mimic a water strider’s water jumping.

The researchers from Seoul National University and Harvard University, studied how water striders (Gerridae) jumped on water, to create a robot that could successfully launch itself from the surface of water.

Je-Sung Koh of Seoul National University and his colleagues have copied the awesome water strider to build a robot that can jump on water, without sinking.

“What was very important for us while building the jumping water robot was to make sure that the maximum force does not exceed the maximum surface tension force“, noted Je-Sung Koh in an accompanying video demonstration.

Apple has included Force Touch screens on its new MacBook and the Apple Watch, and it’s now expected to be one of the primary features of the new iPhone.

Apple’s Force Touch screen is pressure sensitive, which means that it can also tell how hard you’re pressing in addition to being able to detect where you’re tapping and swiping.