Now you Know

Invention : steel, mass-production
Year : 1856
Inventor : henry bessemer
Country : uk.

Invention : steel, stainless
Year : 1914
Inventor : harry brearley
Country : uk.

Invention : stereo, personal
Year : 1979
Inventor : sony corp.
Country : japan.

Invention : stereophonic sound recording
Year : 1931
Inventor : alan dower blumlein
Country : uk.

Invention : stethoscope
Year : 1819
Inventor : rene-theophile-hyacinthe laennec
Country : france.

Invention : stock ticker
Year : 1867
Inventor : edward a. calahan
Country : us.

Invention : stove, electric
Year : 1896
Inventor : william hadaway
Country : us.

Invention : stove, gas
Year : 1826
Inventor : james sharp
Country : uk.

Invention : straw, drinking
Year : 1888
Inventor : marvin stone
Country : us.

Invention : submarine
Year : 1620
Inventor : cornelis drebbel
Country : the netherlands.

Invention : sunglasses
Year : 1752
Inventor : james ayscough
Country : uk.

Invention : sunscreen
Year : 1944
Inventor : benjamin green
Country : us.

Invention : supermarket
Year : 1930
Inventor : michael cullen
Country : us.

Invention : synthesizer, music
Year : 1955
Inventor : harry olson, herbert belar
Country : us.

Invention : synthetic skin
Year : 1981
Inventor : ioannis v. yannas, john f. burke
Country : us.

Invention : tampon, cotton
Year : 1931
Inventor : earle cleveland haas
Country : us.

Invention : tank, military
Year : 1915
Inventor : admiralty landships committee
Country : uk.

Invention : tea bag
Year : early 1900s
Inventor : thomas sullivan
Country : us.

Invention : teddy bear
Year : 1902
Inventor : morris michtom
Country : us.

Invention : teflon
Year : 1938
Inventor : roy plunkett
Country : us.

Fact
A top freestyle swimmer achieves a speed of only 4 miles per hour. Fish, in contrast, have been clocked at 68 mph .. More >>