Richard Hall Gower, (1768–1833) England – ship's hull and rigging
Boris Grabovsky, (1901–1966) Russia – cathode commutator, an early electronic TV
pickup tube
Bette Nesmith Graham, (1924– 1980 ) U.S. – Liquid Paper
James Henry Greathead, (1844–1896) South Africa – tunnel boring machine, tunnelling
shield technique
Chester Greenwood, (1858–1937)
James Gregory, (1638–1675)
William Robert Grove, (1811–1896)
Otto von Guericke, (1602–1686) Germany – vacuum pump, manometer, dasymeter
Joseph-Ignace Guillotin, (1738–1814) France – Guillotine, a device for human
decapitation
Mikhail Gurevich, (1893–1976) Russia – MiG-series fighter aircraft, including world's most
produced jet aircraft MiG-15 and most produced supersonic aircraft MiG-21 (together with
Artem Mikoyan)
Hakan Gürsu, (c. 2007)
Johann Gutenberg, (c. 1390s–1468) Germany – movable type printing press
Samuel Guthrie, (1782–1848)
H
John Hadley, (1682–1744)
Waldemar Haffkine, (1860–1930) Russia/Switzerland – first anti-cholera and anti-plague
vaccines
Tracy Hall, (1919–2008 )
John Hays Hammond, Jr., (1888–1965)
James Hargreaves, (1720–1778)
John Harington, (1561–1612) England – the flush toilet
John Harrison, (1693–1776)
Victor Hasselblad, (1906–1978) Sweden – invented the 6 x 6 cm single-lens reflex camera
Ibn al-Haytham (Alhazen), (965–1039) Iraq – camera obscura, pinhole camera,
magnifying glass
George H. Heilmeier, ( 1936 – ) U.S. – liquid crystal display (LCD)
Robert A. Heinlein, (1907–1988)
Jozef Karol Hell, (1713–1789)
Rudolf Hell, (1901–2002)
Joseph Henry, (1797–1878)
Heron, (c. 10-70) Roman Egypt – usually credited with invention of the aeolipile, although
it may have been described a century earlier
John Herschel, (1792–1871) England – photographic fixer (hypo), actinometer
William Herschel, (1738–1822)
Heinrich Hertz, (1857–1894) Germany – radio telegraphy, electromagnetic radiation
