Important scientists and inventors - topics of interest beginning with O

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

 ocean currents

 Maury

 oceanography

 Murray

 octahedral geometry  Werner
 ocular dominance  Hubel, Wiesel

 Ohm's Law

 Ohm

 olefin metathesis  Chauvin, Grubbs, Schrock
 olfactory receptors  Axel, Buck
 oncogenes  Bishop, Varmus
 Onsager reciprocal relations  Onsager

 open-hearth steel

 Siemens

 operator theory

 von Neumann

 ophthalmology  Gullstrand
 optical coherence  Glauber
 optics  Gullstrand
 optoelectronics  Alferov, Kroemer
 oral contraceptive  Djerassi

 organelles

 Claude, de Duve, Palade

 organic synthesis  Corey, Woodward
 organometallic chemistry  Fischer, Frankland, Wilkinson
 organ transplantation  Carrel, Murray, Thomas

 origin of life

 Miller, Urey

 origin of species

 Darwin

 osmotic pressure  van 't Hoff
 oxidase  Theorell
 oxyamination  Sharpless

 oxygen

 Priestley, Scheele

 oxytocin  du Vigneaud
 ozone depletion  Crutzen, Molina, Rowland