Now you Know

Invention : jell-o (gelatin dessert)
Year : 1897
Inventor : pearle b. wait
Country : us.

Invention : jukebox
Year : 1889
Inventor : louis glass
Country : us.

Invention : kevlar
Year : 1965
Inventor : stephanie kwolek
Country : us.

Invention : kool-aid (fruit drink mix)
Year : 1927
Inventor : edwin e. perkins
Country : us.

Invention : laser
Year : 1958
Inventor : gordon gould and charles hard townes, arthur l. schawlow (invented separately)
Country : us.

Invention : laundromat
Year : 1934
Inventor : j.f. cantrell
Country : us.

Invention : lawn mower, gasoline-powered
Year : c. 1940
Inventor : leonard goodall
Country : us.

Invention : lego
Year : late 1940s
Inventor : ole kirk christiansen
Country : denmark.

Invention : light bulb, incandescent
Year : 1879
Inventor : thomas alva edison
Country : us.

Invention : light bulb, fluorescent
Year : 1934
Inventor : arthur compton
Country : us.

Invention : light-emitting diode (led)
Year : 1962
Inventor : nick holonyak, jr.
Country : us.

Invention : linoleum
Year : 1860
Inventor : frederick walton
Country : uk.

Invention : lipstick, tube
Year : 1915
Inventor : maurice levy
Country : us.

Invention : liquid crystal display (lcd)
Year : 1963
Inventor : george heilmeier
Country : us.

Invention : lock and key
Year : c. 2000 bc
Inventor : assyrians
Country : mesopotamia.

Invention : locomotive
Year : 1829
Inventor : george stephenson
Country : england.

Invention : longbow
Year : c. 1000
Inventor : -
Country : wales.

Invention : loudspeaker
Year : 1924
Inventor : chester w. rice, edward w. kellogg
Country : us.

Invention : magnetic resonance imaging (mri)
Year : early 1970s
Inventor : raymond damadian, paul lauterbur
Country : us.

Invention : margarine
Year : 1869
Inventor : hippolyte mege-mouries
Country : france.

Fact
The olive branch in the eagle's right talon has 13 leaves. .. More >>