Important scientists and inventors - topics of interest beginning with A

These are lists of the topics covered in the lists of scientists and inventors, with some cross-referencing.

 4 elements

 Empedocles

 5th dimension  Kaluza, Klein

 Absolute Zero

 Giauque, Kelvin

 acetylcholine  Dale, Loewi
 acid-base reactions  Brønsted
 acquired immune tolerance  Burnet, Medawar
 action potential  Gasser, Hodgkin, Huxley
 adhesion  de Gennes
 adrenal cortex hormones  Hench, Kendall, Reichstein
 AGA cooker  Dalen

 agglutinins

 Landsteiner

 agmatine  Kossel
 agricultural botany  Burbank
 agricultural chemistry  Virtanen
 Aharonov-Bohm effect  Aharonov

 airship

 von Zeppelin

 algebra

 Gauss,  al Khwarizmi

 alicyclic compounds  Wallach
 alkaloids  Robinson
 alkene synthesis  Brown, Wittig

 Almagest

 Ptolemy

 alpha helix

 Pauling

 alpha (canal) rays  Stark

 ammonia synthesis

 Haber

 amorphous semiconductors  Anderson, Mott, van Vleck
 amorphous solids  Anderson, Mott, van Vleck
 amyotrophic lateral sclerosis  Charcot
 analytical psychology  Jung
 anaphylaxis  Richet

 anatomy

 Galen

 Anderson localization  Anderson

 aniline dyes

 Perkin

 anisotropy  Mather, Smoot
 anthocyanins  Robinson
 antibiotic  Domagk
 antihistamines  Bovet
 antibody  Tonegawa
 antibody structure  Edelman, Porter
 antivenom  Sutherland

 anthrax

 Koch

 anthropology  Boas

 antibiotics

 Waksman

 antibiotic resistance  Delbruck, Hershey, Luria
 antiparticles  Chamberlain, Segré
 antiprotons  Chamberlain, Segré

 antiseptic surgery

 Lister

 antiserum  Behring
 Antarctic exploration  David
 aqualung  Cousteau
 aquaporins  Agre, MacKinnon
 Archaea  Woese
 Archimedes screw  Archimedes

 architectural acoustics

 Sabine

 arithmetic progression  Green, Tao
 Arrhenius equation  Arrhenius

 assembly line

 Ford

 asteroids

 Baade, Gehrels, Helin

 Aston dark space  Aston

 astronomy

 Galileo, Jansky

 asymmetric hydrogenation  Knowles, Noyori
 asymmetric synthesis  Sharpless
 asymptotic freedom  Gross, Politzer, Wilczek

 atom bomb

 Oppenheimer

 atom bomb project  Bethe
 atomic clocks  Ramsey
 atomic nucleus  Bohr, Goeppert-Mayer, Hofstadter, Jensen, Mössbauer, Mottelson, RainwaterWigner

 atomic number

 Moseley

 atomic weight  Richards
 atomic structure  Bohr, Boltzmann, Democritus, Dalton
 ATP synthesis  Boyer, Mitchell, Walker
 Australian geology  David
 Australian plants  Banks

 Australopithecus

 Dart, Johanson

 automated car production

 Ford

 automobile  Benz, Ford, Maybach
 Avogadro's Law  Avogadro