Now you Know

Invention : bag, flat-bottomed paper
Year : 1870
Inventor : margaret knight
Country : us.

Invention : bakelite
Year : 1907
Inventor : leo hendrik baekeland
Country : us.

Invention : ball bearing
Year : 1794
Inventor : philip vaughan
Country : england.

Invention : balloon, hot-air
Year : 1783
Inventor : joseph & etienne montgolfier
Country : france.

Invention : bandage, adhesive
Year : 1921
Inventor : earle dickson
Country : us.

Invention : bar code
Year : 1952
Inventor : joseph woodland
Country : us.

Invention : barbed wire
Year : 1874
Inventor : joseph glidden
Country : us.

Invention : barometer
Year : 1643
Inventor : evangelista torricelli
Country : italy.

Invention : battery, electric storage
Year : 1800
Inventor : alessandro volta
Country : italy.

Invention : beer
Year : before 6000 bc
Inventor : sumerians, babylonians
Country : mesopotamia.

Invention : bicycle
Year : 1818
Inventor : baron karl de drais de sauerbrun
Country : germany.

Invention : bifocal lens
Year : 1784
Inventor : benjamin franklin
Country : us.

Invention : bikini
Year : 1946
Inventor : louis reard
Country : france.

Invention : blood bank
Year : late 1930s
Inventor : charles richard drew
Country : us.

Invention : blow-dryer
Year : 1920
Inventor : racine universal motor co., hamilton beach manufacturing co.
Country : us.

Invention : bomb, atomic
Year : 1945
Inventor : j. robert oppenheimer, et al.
Country : us.

Invention : bomb, thermonuclear (hydrogen)
Year : 1952
Inventor : edward teller, et al.
Country : us.

Invention : boomerang
Year : c. 15,000 years ago
Inventor : aboriginal peoples
Country : australia.

Invention : braille system
Year : 1824
Inventor : louis braille
Country : france.

Invention : brassiere (bra)
Year : 1913
Inventor : mary phelps jacob
Country : us.

Fact
Talc was used by cavemen 15,000 years ago as an ingredient added to make paint .. More >>