Lladin
19eg_ganrif
20fed_ganrif
Carolus_Linnaeus
Metr
Gwyddoniaeth
Aristoteles
Technoleg
Hen_Roeg_(iaith)
Y_Chwyldro_Diwydiannol
Bacteria
Esblygiad
Gwobr_Nobel
Albert_Einstein
Isaac_Newton
Leonardo_da_Vinci
Charles_Darwin
Ecoleg
Yr_Oleuedigaeth
Johann_Wolfgang_von_Goethe
Hiliaeth
Galileo_Galilei
Ptolemi
Y_Gymdeithas_Frenhinol
René_Descartes
Maria_Sibylla_Merian
Sigmund_Freud
Benjamin_Franklin
Gottfried_Wilhelm_Leibniz
Archimedes
James_Cook
Marie_Curie
Epistemoleg
Alfred_Russel_Wallace
Plinius_yr_Hynaf
Milltir
Stephen_Hawking
Alcemi
Dull_gwyddonol
Gwres
Leonhard_Euler
Louis_Pasteur
Michael_Faraday
Johannes_Kepler
Nicolaus_Copernicus
Microbioleg
Blaise_Pascal
Alan_Turing
Urdd_y_Sistersiaid
Jonas_Salk
Nikola_Tesla
Cyfnod_Modern_Cynnar
Christiaan_Huygens
Carl_Friedrich_Gauss
Dmitri_Mendeleev
Alexander_Fleming
James_Watt
James_Clerk_Maxwell
Alfred_Nobel
Hippocrates
Galen
Niels_Bohr
Max_Planck
Florence_Nightingale
Richard_Feynman
Y_brodyr_Wright
Robert_Hooke
Awtopsi
Ffatri
Alexander_von_Humboldt
John_von_Neumann
Eratosthenes
Anton_van_Leeuwenhoek
Prosiect_Manhattan
Erwin_Schrödinger
Enrico_Fermi
David_Hilbert
Antoine_Lavoisier
Paracelsus
Linus_Pauling
Michel_Foucault
Francis_Bacon
Robert_Boyle
Karl_Popper
Positifiaeth
Francis_Crick
André-Marie_Ampère
Gregor_Mendel
Joseph-Louis_Lagrange
Christopher_Wren
Oes_y_Darganfod
Muhammad_ibn_Mūsā_al-Khwārizmī
Ernst_Haeckel
Tycho_Brahe
Anacsimandros
Etifeddeg
Auguste_Comte
James_Dewey_Watson
Gwireb_(mathemateg)
Hanes_y_byd
Paul_Dirac
Emilie_Snethlage
On_the_Origin_of_Species
William_o_Ockham
Thomas_Malthus
Edwin_Powell_Hubble
Thales
Richard_Owen
Humphry_Davy
Robert_Koch
William_Thomson,_Barwn_1af_Kelvin
Emanuel_Swedenborg
Ewgeneg
Haearn_gyr
Chwyldro_Gwyddonol
Frederick_Sanger
Andreas_Vesalius
Rhazes
Académie_des_Sciences
Rachel_Carson
Thomas_Young
Jean-Baptiste_de_Lamarck
Brahmagupta
Ivan_Pavlov
John_James_Audubon
Joseph_Priestley
Abacws
Thomas_Hunt_Morgan
Santiago_Ramón_y_Cajal
John_Harrison
Alfred_Kinsey
Christiaan_Hendrik_Persoon
Jakob_Bernoulli
Daniel_Dennett
Paul_Ehrlich
Ronald_Fisher
Mwyndoddi
Erasmus_Darwin
William_Harvey
Adam_Sedgwick
John_Meurig_Thomas
Maurice_Wilkins
Thomas_Henry_Huxley
Rudolf_Virchow
Ffwrnais_chwyth
Louis_Agassiz
Robert_Fludd
Karl_Landsteiner
Ymddygiadaeth
Oliver_Smithies
Sefydliad_Rockefeller
Charles_Scott_Sherrington
John_Eccles
Jacques_Monod
Cylch_Fienna
Irène_Joliot-Curie
Iron_Bridge
Hypatia
Roger_Bacon
Hanes_ffiseg
De_Humani_Corporis_Fabrica
Thomas_Newcomen
Hans_Sloane
Camillo_Golgi
Emil_Theodor_Kocher
William_Buckland
Jöns_Jacob_Berzelius
Mary_Anning
Joseph_Banks
Ambergris
William_Smith
Cadwyn_Bod
John_Tyndall
John_Maddox
George_Wald
Y_Ras_Ofod
Julius_Wagner-Jauregg
Niko_Tinbergen
Daeargoel
Richard_Arkwright
Theodor_Schwann
Peter_Medawar
Inge_Lehmann
Ragnar_Granit
Karl_Ernst_von_Baer
António_Egas_Moniz
Hans_Krebs
Albert_Sabin
John_Franklin
Sidney_Gilchrist_Thomas
Clemens_Winkler
Asa_Gray
Henrietta_Swan_Leavitt
Hedy_Lamarr
Hipparchus
Virginia_Apgar
Margaret_Cavendish,_duges_Newcastle-upon-Tyne
Duns_Scotus
Andreas_Libavius
Johannes_Hevelius
Naturalis_historia
Jean_le_Rond_d'Alembert
Rosalind_Franklin
Henry_Bessemer
William_Conybeare
Franz_Anton_Mesmer
Philosophiae_Naturalis_Principia_Mathematica
E._O._Wilson
William_Gilbert_(ffisegydd)
Josiah_Wedgwood
Maria_Mitchell
George_Graham
Marie-Anne_Pierrette_Paulze
August_von_Wassermann
Carlos_Chagas
Y_Gymdeithas_Ddaearyddol_Frenhinol
William_Withering
Conrad_Gesner
Kitasato_Shibasaburō
Richard_Lower
Thomas_Lewis_(cardiolegydd)
Henri_Dutrochet
Silent_Spring
Chwyldro_Diwydiannol_Cymru
John_Wilkins
Thomas_Wakley
John_Ray
Joseph_Justus_Scaliger
John_Latham
George_Rolleston
Amgueddfa_India,_Calcutta
Zosimos_o_Panopolis
Dynwarededd_Batesaidd
Symbol_alcemegol
Jérôme_Lejeune
Astley_Cooper
Margaret_Oakley_Dayhoff
Dynwarededd_Müelleraidd
Nikolai_Korotkov
John_T._Lewis
Miriam_Rothschild
Gertrude_Scharff_Goldhaber
Hermann_Stieve
Stafford_L._Warren
Thomas_Dick
Julia_Anna_Gardner
Ferdinand_Hoefer
Karine_Chemla
Rose_Marie_Pangborn
Syr_William_Lawrence,_Barwnig_1af