Science Experiments for Kids

reciprocating piston suction pump, geared and hydropowered water supply system,

programmable humanoid robots, robotics, hand washing automata, flush mechanism,

lamination, static balancing, paper model, sand casting, molding sand, intermittency, linkage

 Ibn Al-Jazzar (Algizar), (c. 898-980)

treatment drugs

 Steve Jobs, (1955–2011) U.S. – Apple Macintosh computer, iPod, iPhone, iPad and

countless other devices and software operating systems and applications

 György Jendrassik, (1898–1954)

 Charles Francis Jenkins, (1867–1934) – television and movie projector (Phantoscope)

 Carl Edvard Johansson, (1864–1943)

 Johan Petter Johansson, (1853–1943) Sweden – the pipe wrench and the modern

adjustable spanner

 Nancy Johnson U.S. – American version of the hand cranked ice cream machine in (1843)

 Scott A. Jones, (1960–) U.S. – created one of the most successful versions of voicemail as

well as ChaCha Search, a human-assisted internet search engine.

 Whitcomb Judson, (1836–1909)

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 Mikhail Kalashnikov, (1919–) Russia – AK-47 and AK-74 assault rifles (the most produced

ever)[1]

 Dean Kamen, (1951–) U.S. – Invented the Segway HT scooter and the IBOT Mobility Device

 Heike Kamerlingh Onnes, (1853–1926)

 Nikolay Kamov, (1902–1973) Russia – armored battle autogyro, Ka-series coaxial rotor

helicopters

 Pyotr Kapitsa, (1894–1984) Russia – first ultrastrong magnetic field creating techniques,

basic low-temperature physics inventions

 Georgii Karpechenko, (1899–1941) Russia – rabbage (the first ever non-sterile hybrid

obtained through the crossbreeding)

 Jamshīd al-Kāshī, (c. 1380–1429) Persia/Iran – plate of conjunctions, analog planetary

computer

 Yevgeny Kaspersky, (1965–) Russia – Kaspersky Anti-Virus, Kaspersky Internet Security,

Kaspersky Mobile Security anti-virus products

 Adolphe Kégresse, (1879–1943) France/Russia – Kégresse track (first half-track and first

off-road vehicle with continuous track), dual clutch transmission

 Mstislav Keldysh, (1911–1978) Latvia/Russia – co-developer of Sputnik 1 (the first

artificial satellite) together with Korolyov and Tikhonravov

 John Harvey Kellogg, (1852–1943) cornflake breakfasts

 John George Kemeny, (1926–1992) Hungary – co-inventor of BASIC

 Alexander Kemurdzhian, (1921–2003) Russia – first space exploration rover (Lunokhod)

 Kerim Kerimov, (1917–2003) Azerbaijan and Russia – co-developer of human spaceflight,

space dock, space station