the starter wife sharon mean

Isn't it sad that this small list shows the full extent of Black American practical inventions?

It's so small it's laughable, i could count it on one hand

Biscuit Cutter A.P. Ashbourne Super Soaker Lonnie Johnson
Folding Bed L.C. Bailey Bicycle Frame Issac R. Johnson
Coin Changer James A. Bauer Space Shuttle Retrieval


Blacks invented the Kitchen table?!?!?!

SERIOUSLY?! THE EFIN' KITCHEN TABLE?!

a cave man probably put a fish on a rock and called that his kitchen table.

you should research better.

Nitinol Heat Engine

Heat Engine - Nitinol Metal Engine driven by hot and cold water. The Heat Engineis a very special kind of heat engine that demonstrates the ...

Heat Engine

An introduction to the Heat Engine lab activity