Hosted by Sandra Tsing Loh, The Loh Down on Science is a fun way to get your daily dose of science plus a dash of humor in less than two minutes.
Hosted by Sandra Tsing Loh
Airs Weekdays 2:43 and 3:43 a.m.

Water Walker





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Can you teach a robot to swim?

This is Sandra Tsing Loh with the Loh Down on Science.

Aquatic robots? That’s crazy talk!  This is because heavy machinery and electrical components reduce a robot’s agility in water. 

Enter Robert Wood from Harvard’s Microrobotics Laboratory.  He created an AMPHIBIOUS robot -- it can swim, float, and move between land and water.  It’s known as the Harvard Ambulatory Microrobot – H-A-M-R (HAMMER) for short. 

This novel design was inspired by nature’s amazing aquatic Diving Beetle!  Aquatic beetles walk on water using buoyancy and surface tension.  Buoyancy is an upward force that helps insects float.  Surface tension maintains water’s flexibility and rounded edges around objects.  

HAMR mimics the joints of water crawling insects, allowing for more dynamic movements.  This helps it walk on top of water or dive deep for an underwater stroll!  Scientists hope to use HAMR to explore places inaccessible to larger, land-lubbing robots.  We may soon be accessing untrodden undersea worlds! Hello, Spongebob!

Hopefully FLYING robotic beetles aren’t next!  We have enough bugs crawling on land!