"I am a former science teacher. This looks like an insert for a ripple tank. They are used for teaching wave physics. The numbers are so you can measure frequency. The bar and lump are to create wave ...

These worked great and were very warm and comfortable. My feet never go wet or cold while hiking in the rain or walking ...

70s pop star Melissa Manchester is Brice's mom in Boston 'Funny Girl' ...

Brave, talented pups save the day in pre-K adventure.