11 Jan 1930 Jahr - 1921 : Robots; insulin 1922 : Aga cooker 1923 :Hearing aids 1924 : Frozen food 1925 : Geiger counter; television 1926 : Liquid fuel rocket; pop-up toaster; aerosol sprays 1927 : ‘Talkies’ at the movies, 1928 : Iron lung; penicillin 1929 : Artificial life 1930 : Jet engine; mechanical toothbrushes; Scotch tape

Zugefügt zum Band der Zeit:

New timeline

ByLauryn S

24 Sep 2018

1

0

373

Datum:

Abbildungen: