Sólskin - 01.07.1953, Síða 60

Jámbrautin (Stephenson) ................... 1825
Blindraletur (Braille)..................... 1829
Ritsíminn (Gauss, Weber) .................. 1833
Frímerkið (Rowland Hill)................... 1837
Ljósmyndagerð (Daguerre o. fl.) ........... 1839
Nothæf saumavél (Howe) .................... 1846
Talsíminn (Bell, Gray) .................... 1876
Hljóðneminn (Edison) ...................... 1877
Hljóðritinn (eða hljómplatan) (Edison) ... 1877
Kvikmyndir (Edison, Lumiére) .............. 1895
Röntgengeislar (Röntgen) .................. 1895
Loftskeytin (Sörensen, Marconi, Poulsen) .. 1898
Radium (Curie-hjónin) ..................... 1898
Flugvélin (Wright-bræðurnir) .............. 1903
Vitamin ................................... 1912
Tal- og tónmyndir.......................... 1920
Otvarpssendingar .......................... 1920
Sjónvarp.................................. 1927
Sundmn atómsins............................ 1944
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