Robert Millikan card

Physicist 1868-1953

Parker POINTS

Home: USA
Awards: Nobel Prize in Physics, Hughes Medal, Franklin Medal, more
Notable Students: Harvey Fletcher
Quote: My idea of an educated person is one who can converse on a subject for more than two minutes


Graphic by Eric Hamber Secondary

Discovery/Theory card

Radioactivity - Uranium

Parker POINTS

Uranium phosphoresces when exposed to light / These rays emitted by uranium cause gases to ionize – identified as radioactivity / Radioactive beta particles are due to high speed electrons leaving the nucleus of the atom


Graphic by Eric Hamber Secondary

Henri Becqueral

Physicist 1852-1908

Parker POINTS

Home: France
Awards: Nobel Prize in Physics, Copley Medal, Rumford Medal
Notable Students: Marie Curie
Quote: Although the sun is irrelevant, and he misinterprets the role of phosphorescence, he has discovered the effect of radioactivity.


Graphic by Eric Hamber Secondary

Discovery/Theory card

Cathode Ray tube

Parker POINTS

The two electrodes produce a greenish glow called fluorescence when they are connected to power / A beam of negative particles produces a shadow coming from the disk shaped electrode, called a cathode / This lead to scientists realizing that these particles of matter must be smaller than the atom.


Graphic by Eric Hamber Secondary

William Crookes

Chemist and Physicist 1832-1919

Parker POINTS

Home: United Kingdom
Awards: Copley Medal, Elliot Cresson Medal
Notable Interest: Spiritualism
Quote: …The fixation of atmospheric nitrogen is one of the great discoveries, awaiting the genius of chemists.


Graphic by Eric Hamber Secondary

Irene and Frederic Joliot-Curie (Winnie)

Julia,Vivian,Winnie and Mina

4 POINTS

– Husband and wife French physical chemists
– Discovered the new radioactive isotopes prepared artificially
– Awarded with a Nobel Prize in 1935


Graphic by Eric Hamber Secondary