https://padlet.com/akleiman569/lyxqrxjm9zsnc155 achievements by 1920's scientists by Gabriela Joa, Coco horai, Alan kleiman en-us 2020-04-30 02:50:55 UTC 2025-12-11 14:59:02 UTC hello@padlet.com https://padlet.net/icons/png/1f643.png akleiman569 https://padlet.com/akleiman569/lyxqrxjm9zsnc155/wish/540796004

1905 and 1916 Einstein introduced his theories of relativity

Einstein argued that measurements of space and time are not absolute but are determined by many factors...

Einstein’s theories of relativity were accepted by many scientists 

Einstein’s theories led to many new discoveries such as the atomic fission 

Received the 1921 Nobel Prize in physics 

]]> 2020-04-30 02:56:04 UTC https://padlet.com/akleiman569/lyxqrxjm9zsnc155/wish/540796004 akleiman569 https://padlet.com/akleiman569/lyxqrxjm9zsnc155/wish/540796788

Curie experimented with an atomic process called radioactivity

Curie and others discovered that atoms of certain elements spontaneously release charged particles

Studying radioactivity further, it was discovered that it can change atoms of one element into atoms of another

Curie’s contributions to such findings proved that atoms are not solid and invisible 

Curie’s theories also led to the discovery of the atomic fission 

]]> 2020-04-30 02:56:49 UTC https://padlet.com/akleiman569/lyxqrxjm9zsnc155/wish/540796788 akleiman569 https://padlet.com/akleiman569/lyxqrxjm9zsnc155/wish/540800884 Discovered more than our galaxy 
Discovered the universe is expanding
Provided basis for the bing bang theory
Played a crucial role in establishing fields of extragalactic astronomy and observational cosmology
made history by discovering Cepheid]]> 2020-04-30 03:00:52 UTC https://padlet.com/akleiman569/lyxqrxjm9zsnc155/wish/540800884 akleiman569 https://padlet.com/akleiman569/lyxqrxjm9zsnc155/wish/540808333 Discovered alpha and beta rays
Set forth the laws of radioactive decay
Identified alpha particles as helium nuclei
Postulated the nuclear structure of the atom
Predicted the existence of the neutron]]> 2020-04-30 03:08:40 UTC https://padlet.com/akleiman569/lyxqrxjm9zsnc155/wish/540808333 akleiman569 https://padlet.com/akleiman569/lyxqrxjm9zsnc155/wish/540817955 Invented an instrument to measure the weight and pressure of solar rays
Helped to build several scientific institutions
Founded the journal Science and Culture and was the editor until his death
Discovered his ionization equation
Founded Saha Institute of Nuclear Physics]]> 2020-04-30 03:18:09 UTC https://padlet.com/akleiman569/lyxqrxjm9zsnc155/wish/540817955