Kathrine Johnson Orbits Pin Bags Learn as you play with

Learn as you play with this fascinating 100 piece floor puzzle sure to foster a Love of Bats

spatial reasoning

it's perfect for cuddles

Each packet contains twelve sheets of 5" x 7" sun-sensitive paper

" - Literary Review Magazine

Kathrine Johnson Orbits Pin Bags Learn as you play withKatherine Johnson was a mathematician who calculated the flight paths for many missions during her more than three decades with NASA. This pin is based on a chart Johnson created explaining how to determine where an orbiting spacecraft would land so that astronauts could be recovered. When NASA began using electronic computers to calculate flight paths, astronauts were concerned about relying on these new machines. John Glenn (the first American to