Almon Strowger, (1839–1902) U.S. – automatic telephone exchange
Su Song, (1020–1101) China – first chain drive
Pavel Sukhoi, (1895–1975) Russia – Su-series fighter aircraft
Simon Sunatori, (1959–) Canada – inventor of MagneScribe and Magic Spicer
Sushruta, (600 BC) Vedic India – inventor of Platic Surgery, Cataract Surgery, Rhinoplasty
Abd al-Rahman al-Sufi (Azophi), (903–986) Persia/Iran – timekeeping astrolabe,
navigational astrolabe, surveying astrolabe
Joseph Swan, (1828–1914) England – Incandescent light bulb
Robert Swanson, (1905– 1994 ) Canada – Invented and developed the first multi-chime air
horn for use with diesel locomotives
Andrei Sychra, (1773- 76 – 1850) Lithuania/Russia, Czech descent – Russian seven-string
guitar
Vladimir Syromyatnikov, (1933–2006) Russia – Androgynous Peripheral Attach System
and other spacecraft docking mechanisms
Leó Szilárd, (1898–1964) Hungary/U.S. – Co-developed the atomic bomb, patented the
nuclear reactor, catalyst of the Manhattan Project
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Salih Tahtawi, (fl.1659–1660) Mughal India – seamless globe and celestial globe
Igor Tamm, (1895–1971) Russia – co-developer of tokamak
Taqi al-Din, (1526–1585) Syria/Egypt/Turkey – steam turbine, six-cylinder 'Monobloc'
suction pump, framed sextant
Mardi bin Ali al-Tarsusi, (c. 1187) Middle East – counterweight trebuchet, mangonel
Bernard Tellegen, (1900–1990) Netherlands – pentode
Edward Teller, (1908–2003) Hungary – hydrogen bomb
Nikola Tesla, (1856–1943) Croatian Serb, citizenship:Austrian Empire (pre-1891),
American (post-1891) – Tesla Coil, induction motor, wireless communication
Léon Theremin, (1896–1993) Russia – theremin, interlace, burglar alarm, terpsitone,
Rhythmicon (first drum machine), The Thing (listening device)
Charles Xavier Thomas de Colmar, (1785–1870) France – Arithmometer
Elihu Thomson, (1853–1937) England, USA – Prolific inventor, Arc lamp and many others
Eric Tigerstedt, (1887–1925) Finland – triode vacuum tube
Kalman Tihanyi, (1897–1947) Hungary – co-inventor of cathode ray tube and iconoscope
Mikhail Tikhonravov, (1900–1974) Russia – co-developer of Sputnik 1 (the first artificial
satellite) together with Korolyov and Keldysh, designer of further Sputniks
Gavriil Adrianovich Tikhov, (1875–1960) Russia – feathering spectrograph
Benjamin Chew Tilghman, (1821–1897) U.S. – sandblasting
Tipu Sultan, (1750–1799) India – iron-cased rocket
Fedor Tokarev, (1871–1968) Russia – TT-33 semiautomatic handgun and SVT-40 self-
loading rifle
Evangelista Torricelli, (1608–1647) Italy – barometer
Alfred Traeger, (1895–1980) Australia – the pedal radio