அறிவியல் கண்டுபிடிப்புகள்(INVENTIONS) மற்றும் கண்டுபிடிப்பாளர்கள்..

அறிவியல் கண்டுபிடிப்புகள் (INVENTIONS)

Bacteria :

Anton van Leeuwenhoek, The Netherlands, 1683.

Bakelite :

Leo Hendrik Baekeland, U.S.A., 1907.

Ball Bearing :

Philip Vaughan, England, 1794.

Ballon, Hot-air :

Joseph and Jacques Montgolfier, France, 1783.

Bar Codes :

Monarch Marking, U.S.A. 1970.

Barometer :

Evangelista Torricelli, Italy, 1643.

Bicycle :

Karl D. von Sauebronn, Germany, 1816; (first modern model) James Starley, England, 1884.

Big Bang Theory :

(the universe originated with a huge explosion) George LeMaitre, Belgium, 1927; (modified LeMaitre theory labeled “Big Bang”) George A. Gamov, U.S.A., 1948; (cosmic microwave background radiation discovered) Arno A. Penzias and Robert W. Wilson, U.S.A. 1965.

Blood, Circulation of :

William Harvey, England, 1628.

Bomb, Atomic :

J. Robert Oppenheimer et al., U.S.A., 1945.

Bomb, Thermonuclear (hydrogen) :

Edward Teller et al., U.S.A., 1952.

Boyle’s Law :

(relation between pressure and volume in gases) Robert Boyle, Ireland, 1662.

Braille :

Louis Braille, France, 1829.

Bridges :

(suspension, iron chains) James Finley, Pa., 1800; (wire suspension) Marc Seguin, Lyons, 1825; (truss) Ithiel Town, U.S.A., 1820.

Bullet :

(conical) Claude Minie, France, 1849.