12639621 - University Lecture Hall12349377 - Mary N. Crawford, US doctor12639620 - University Chalkboards12051437 - Alzheimer's patient,conceptual image12051435 - Alzheimer's patient,conceptual image12051458 - Alzheimer's patient,conceptual image12349372 - Mary Plumb Blade, US engineer11720510 - Richard Feynman,theoretical physicist12051436 - Alzheimer's disease,conceptual image11805662 - Mathematical Equation11805663 - Mathematical Equation11720513 - Samuel Ting,US physicist11805664 - Mathematical Equation11805665 - Mathematical Equation12066536 - Fermilab's Leon Letterman13686526 - Dorota Grabowska, CERN theoretical physicist13444621 - Enrico Fermi, Italian-US physicist13472655 - Schoolgirl at front of class13355630 - Hand wiping clean digital tablet screen, illustration13472653 - Pupils in school classroom13444703 - Dennis Gabor, British-Hungarian physicist13444616 - Felix Bloch, Swiss-US physicist13502741 - Split screen teacher working and on holiday, illustration13444794 - Hans Bethe, German-US physicist12916358 - Pierre de Fermat, 17th century French mathematician, 187012915484 - Ecole des Ponts-et-Chaussees, Paris, 189412490916 - Bell commenting on his theorem at CERN, 198213614740 - Chemical composition of tryptophan, conceptual image13614736 - Chemical composition of tadalafil, conceptual image13614807 - Chemical composition of benzene, conceptual image13614746 - Chemical composition of xylitol, conceptual image13472656 - Teacher addressing pupils13472654 - Pupils in school classroom12903701 - Jean and Jacques Bernoulli, 18th century12903059 - Lord Kelvin, Scottish mathematician and physicist, 189913614730 - Chemical composition of norepinephrine, conceptual image13614729 - Chemical composition of nicotine, conceptual image13614728 - Chemical composition of methanol, conceptual image13526996 - One pill a day, conceptual image13614721 - Chemical composition of fluoxetine, conceptual image13734173 - Enteral nutrition written on a blackboard, conceptual image13614727 - Chemical composition of lidocaine, conceptual image13526997 - Reminder to take medication, conceptual image13614742 - Chemical composition of vitamin B1, conceptual image13614731 - Chemical composition of penicillin, conceptual image13502265 - Susumu Tonegawa13355646 - Blackboard versus artificial intelligence, illustration12656054 - Bernard Pullman, French quantum chemist and biochemist13614719 - Chemical composition of diclofenac, conceptual image12915559 - Alexander Graham Bell, Scottish-born American inventor, 187712445710 - Richard Feynman's post-Nobel lecture at CERN, 196512970105 - John Houbolt, US aerospace engineer12899534 - Economics tutorial, Sheffield University, 196713614733 - Chemical composition of serine, conceptual image13614722 - Chemical composition of glutamic acid, conceptual image13614744 - Chemical composition of vitamin E, conceptual image12915558 - Alexander Graham Bell, Scottish-born American inventor, 187712903048 - Albert Einstein at Paul Ehrenfest's home, Netherlands13614741 - Chemical composition of valine, conceptual image13614738 - Chemical composition of THC, conceptual image13586626 - Teacher in front of an uninterested class, illustration13614808 - Chemical composition of diazepam, conceptual image13614737 - Chemical composition of taurine, conceptual image12445693 - Theodor Hansch, German physicist12399480 - Physics, illustration13614735 - Chemical composition of sorbitol, conceptual image13614734 - Chemical composition of sildenafil, conceptual image12402098 - Science icons, illustration12400049 - Back to school, illustration12397596 - Illustration of scientific experiment and currency symbol12379334 - Ethel Stiffler, US botanist12903053 - Albert Einstein, mathematician and physicist12445708 - Richard Feynman's post-Nobel lecture at CERN, 196512401431 - Film reel and clapperboard, illustration12400048 - Back to school, illustration12399479 - Physics, illustration12398849 - Education icons, illustration13526998 - Emergency medicine, conceptual image12584062 - Hopper teaching COBOL computer programming, 1960s12402803 - Geometry lesson, Illustration12397845 - Schoolboy standing in a classroom, illustration13614726 - Chemical composition of L-DOPA, conceptual image13614723 - Chemical composition of heroin, conceptual image13509238 - Chemical composition of ketamine, conceptual image13436948 - Dried flowers plants and antique tools on garden shop wall12490917 - Bell and Veltman at CERN, 197312402361 - School icons, illustration12401289 - School icons, illustration12375409 - Sewall Wright, US geneticist13614745 - Chemical composition of vitamin K, conceptual image13614725 - Chemical composition of homocysteine, conceptual image13614717 - Chemical composition of cortisol, conceptual image12402804 - Classroom, Illustration12401290 - School icons, illustration12399472 - Scientific research, illustration12644494 - Schrodinger's cat, illustration12445711 - Richard Feynman's post-Nobel lecture at CERN, 196513614732 - Chemical composition of ractopamine, conceptual image13614720 - Chemical composition of dopamine, conceptual imagepage suivante
