10 Things We Didn’t Know 100 Years Ago
In just the last century, we’ve made an astounding amount of scientific progress. And thanks to some of that progress, we can now share 10 of those discoveries with you in a video on the internet!
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Sources:
General
http://www.thecentenarian.co.uk/how-many-people-live-to-hundred-across-the-globe.html
World’s centenarian population projected to grow eightfold by 2050
http://www.press.uchicago.edu/Misc/Chicago/284158.html
Discovery of the neutron
https://www.aps.org/publications/apsnews/200705/physicshistory.cfm
http://dev.physicslab.org/Document.aspx?doctype=3&filename=AtomicNuclear_ChadwickNeutron.xml
DNA as a double helix
https://profiles.nlm.nih.gov/SC/Views/Exhibit/narrative/doublehelix.html
https://www.nobelprize.org/educational/medicine/dna_double_helix/readmore.html
https://profiles.nlm.nih.gov/ps/retrieve/Narrative/KR/p-nid/187
Vitamins
http://www.acs.org/content/acs/en/education/whatischemistry/landmarks/szentgyorgyi.html
http://www.karger.com/Article/Abstract/343121
https://profiles.nlm.nih.gov/ps/retrieve/Narrative/WG/p-nid/149
http://www.medicalnewstoday.com/articles/155758.php
Antibiotics
http://www.acs.org/content/acs/en/education/whatischemistry/landmarks/flemingpenicillin.html#alexander-fleming-penicillin
http://www.pbs.org/newshour/rundown/the-real-story-behind-the-worlds-first-antibiotic/
http://amrls.cvm.msu.edu/pharmacology/historical-perspectives
Milky Way
https://www.e-education.psu.edu/astro801/content/l9_p2.html
http://cosmictimes.gsfc.nasa.gov/online_edition/1929Cosmic/andromeda.html
http://apod.nasa.gov/htmltest/gifcity/cs_why.html
Hydrogen
http://cwp.library.ucla.edu/Phase2/Payne-Gaposchkin,_Cecilia_Helena@861234567.html
http://oasis.lib.harvard.edu/oasis/deliver/~hua03004
https://www.noao.edu/education/astrobits/files/Stellar-Spectroscopy-Abits.pdf
Plate Tectonics
http://www.ucmp.berkeley.edu/geology/techist.html
http://www.earthobservatory.sg/faq-on-earth-sciences/brief-history-plate-tectonics-theory
https://www.e-education.psu.edu/earth520/content/l2_p2.html
http://www.geolsoc.org.uk/Plate-Tectonics/Chap1-Pioneers-of-Plate-Tectonics/Harry-Hess
Out of Africa Theory
http://www.mhrc.net/mitochondrialEve.htm
http://www.actionbioscience.org/evolution/johanson.html
http://io9.gizmodo.com/more-evidence-undermines-the-out-of-africa-theory-of-1619420466
http://www3.nd.edu/~afreddos/papers/kemp-monogenism.pdf
http://www.sciencemag.org/news/2012/06/asian-origin-human-ancestors
https://www.sciencedaily.com/releases/2007/05/070509161829.htm
Ozone
https://www.ucar.edu/learn/1_6_1.htm
http://www.nobelprize.org/nobel_prizes/chemistry/laureates/1995/press.html
http://www.esrl.noaa.gov/gmd/hats/publictn/elkins/cfcs.html
Einstein
http://www.space.com/17661-theory-general-relativity.html
http://www.cfhtlens.org/public/what-gravitational-lensing
http://physics.ucr.edu/~wudka/Physics7/Notes_www/node98.html
