Beth Harris, a Raleigh mom and long-time science educator, returns with a fun and easy experiment where kids can test their strength with friction. Beth Harris, a Raleigh mom and long-time science ...
(Nanowerk News) If you even bother to think about friction at all, you might think about rubbing your hands together to warm them up. But friction is a big problem out in the world. Parts that rub ...
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