Home  /  Shop by Product  /  Games, Toys & Playing Cards  /  All  /  Inventions That Shaped the World Knowledge Cards
Inventions That Shaped the World Knowledge Cards
Inventions That Shaped the World Knowledge Cards
Click To Enlarge

Inventions That Shaped the World Knowledge Cards

Item In Stock
Item #: K218
Our Price: $9.95
With 48 fact-filled cards per package, Knowledge Cards are a great source of condensed information—all in a deck the size of a pack of playing cards. Size: 3¼ x 4 in.

By Stephen Van Dulhen. The British Library.

ISBN 9780764928802
Quantity:
Product Description
Inventions That Shaped the World Knowledge Cards
Mysteries of the parking meter laid bare! Adding to the satisfaction of reading about the often peculiar circumstances from which forty-eight machines, substances, or technologies arose, this deck reproduces the drawings (mostly in cross section) that accompanied their patent application. Some of the drawings are more entertaining than they are comprehensible, but most—the first disc brake (1902), can opener (1870), washing machine (1910), automatic car wash (1962), and safety pin (1849), for example—are as clear as so many bells.

About that safety pin: it was invented as a way of paying off a $15 debt. The inventor’s creditors gave him a piece of wire and told him to make something useful out of it. He sold them the idea for $400; they became millionaires.
You May Also Like
Dracula Toy Theatre
Our Price: $27.95
Item #: A648
Paper Weaving Kit
Our Price: $24.95
Item #: PS002
Design Blocks: 16 Color Cubes Block Puzzle
Our Price: $19.95
Item #: PB013