Evocations
Evocations of famous composers, sciencists, discoverers and historical figures.
#24010153
Gravitation field experiment illustrating Albert Einstein's theory...
#24010154
In a Wilson Chamber, plutonium alpha particles are given off as the air is...
#24010155
Experiment conducted in a train to determine one of the Theories of R...
#24010156
Einstein's theory of Relativity: there is no absolute time. Time is a function...
#24010157
Clock illustrating Albert Einstein's theory of the speed of light an...
#24010158
Reconstruction of the original Moessbauer experiment used to prove Albert Ein...
#24010159
First laser built in the U.S.A. Experiments with this instrument proved A...
#24010160
A model of an early sewing-machine invented by Joseph Madersperger, 176...
#24010161
An early model of a typewriter, 1864, invented by Peter Mitter...
#24010162
One of Johann Kravogl's (1823-1899) "Power Wheels". Kravogl invented a direc...
#24010163
Marcus Motor, model 1888, with brush carburator and exhaust heating system, inve...
#24010164
Marcus Motor, model 1888, with brush caburator invented by Siegfried Marcus (183...