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Système international d'unités Photos ❘ Science Photo Library
12289426 - International Prototype Kilogram, 1875
11647499 - Bank of Weston cells
12334404 - Nikola Tesla, Serb-US physicist
11725104 - Ytterbium optical clock
11725105 - Ytterbium optical clock
11725107 - Ytterbium optical clock laser
12334403 - Nikola Tesla, Serb-US physicist
11725102 - Ytterbium optical clock
11725103 - Ytterbium optical clock
12334402 - Nikola Tesla, Serb-US physicist
11725106 - Ytterbium optical clock laser
11655403 - Kelvin thermometer,artwork
11725111 - Watt balance,SI unit research
11725109 - Watt balance,SI unit research
11725108 - Watt balance,SI unit research
11725110 - Watt balance,SI unit research
11647492 - Ayrton-Jones ampere balance
12249781 - Nikola Tesla, Serb-US physicist
11826879 - Strontium ion trap
11618465 - Friction measurement experiment
11826868 - Watt balance,SI unit research
13736018 - James Joule, British physicist
13736067 - James Joule, British physicist
13296221 - Blaise Pascal, French mathematician
12334410 - Nikola Tesla, Serb-US physicist
12376237 - Tesla demonstrating his transformer
12334405 - Nikola Tesla, Serb-US physicist
12334400 - Nikola Tesla, Serb-US physicist
12376241 - Nikola Tesla, Serb-US physicist
12334398 - Nikola Tesla, Serb-US physicist
12446671 - Andre-Marie Ampere, French physicist
12376139 - Andre-Marie Ampere, French physicist
12334406 - Nikola Tesla, Serb-US physicist
12334399 - Nikola Tesla, Serb-US physicist
12334409 - Nikola Tesla, Serb-US physicist
12334408 - Nikola Tesla, Serb-US physicist
12376239 - Nikola Tesla, Serb-US physicist
12376238 - Nikola Tesla, Serb-US physicist
12446678 - Werner Siemens, German electrical engineer
12303171 - Antoine Henri Becquerel, French physicist
12334397 - Nikola Tesla, Serb-US physicist
11708883 - Pellat electrodynamometer,1907
11678763 - Alessandro Volta,Italian physicist
11678745 - Heinrich Hertz,German physicist
11723971 - Evangelista Torricelli,Italian physicist
11678722 - Andre-Marie Ampere,French physicist
11723857 - Blaise Pascal,French mathematician
11658776 - Molar quantities for chemical elements
12377016 - Werner Siemens, German electrical engineer
12303060 - Werner Siemens, German electrical engineer
12334407 - Nikola Tesla, Serb-US physicist
12334401 - Nikola Tesla, Serb-US physicist
11723978 - Alessandro Volta,Italian physicist
12376240 - Nikola Tesla, Serb-US physicist
11678737 - Charles Coulomb,French physicist
11651542 - Primary standard radiation force balance
11667509 - Salt packet and a mole of sodium chloride
11708886 - Standard ampere,1900s
12249780 - Nikola Tesla, Serb-US physicist
11678747 - James Joule,British physicist
11723848 - Andre-Marie Ampere,French physicist
11647514 - Interference rings as length standards
11678752 - Georg Ohm,German physicist
11678732 - Henri Becquerel,French physicist
11651543 - Primary standard radiation force balance
11646593 - Nikola Tesla,caricature
11658777 - Moles of sodium chloride and water
11632967 - Werner Siemens,German engineer
11667511 - Mole of sodium chloride
11667510 - Salt packet and a mole of sodium chloride
11651541 - Primary standard radiation force balance
11594886 - Kilogram mass
11568981 - Avogadro Project silicon sphere
12249779 - Nikola Tesla, Serb-US physicist
11828880 - Louis Harold Gray,British physicist
11633794 - Wilhelm Weber,German physicist
11594885 - Kilogram mass
11568982 - Avogadro Project silicon sphere
11829229 - Joseph Henry,US physicist
11827151 - Andre-Marie Ampere,French physicist
11826800 - Strontium ion trap
11689750 - Andre-Marie Ampere,French physicist
11602008 - Andre-Marie Ampere,French physicist
11827163 - Andre-Marie Ampere,French physicist
11602013 - Andre-Marie Ampere,French physicist
11831036 - Rolf M. Sievert
11828878 - Patrick Gill,British physicist
11615513 - Vacuum chamber gauge
11831136 - Werner Siemens,German engineer
11831428 - Alessandro Volta,Italian physicist
11831310 - Nikola Tesla,Serb-US physicist
11568983 - Avogadro Project silicon sphere
11830678 - Blaise Pascal,French mathematician
11830365 - Georg Simon Ohm,German physicist
11829267 - Joseph Henry,US physicist
11826799 - Strontium ion trap
11568980 - Avogadro Project silicon sphere
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