24:
395:
1651:
415:
1453:
369:
1314:
374:
511:
1470:
806:
88:
1710:
1685:
1511:
979:
60:
1567:
1355:
942:
67:
1636:
857:
470:
463:
107:
1737:
41:
74:
1597:
690:
504:
436:
45:
56:
730:
1429:
1742:
1068:
645:
497:
477:
390:
138:
1732:
1329:
970:
701:
566:
263:
153:
132:
1550:
705:
656:
627:
545:
34:
1503:
1461:
1403:
1259:
1007:
960:
945:, in the United States with the goal of keeping the public informed of scientific developments.
934:
1675:
1624:
1190:
741:
722:
publishes papers on the preparation and therapeutic effects in animal subjects of an aqueous
660:
484:
81:
1662:
802:
404:
286:
1025:
8:
1299:
1186:
1135:
1101:
784:
685:
674:
640:
623:
579:
353:
281:
1496:
1274:
1267:
1168:
1014:
594:
587:
457:
452:
301:
291:
1706:
1681:
1632:
1602:
1507:
1211:
1175:
1003:
841:
748:
553:
1434:(Volume 1 ed.). National Aeronautics and Space Administration. pp. 164–165
1388:
1373:
1156:
1146:
1047:
883:
846:
828:
719:
678:
1234:
1407:
1392:
1377:
1359:
1348:
1344:
1333:
1318:
1307:
1285:
1263:
1248:
1221:
1203:
1160:
1131:
1120:
1116:
1112:
1092:
1078:
1060:
1051:
1029:
1018:
999:
974:
964:
887:
820:
338:
333:
260:
255:
250:
245:
240:
235:
230:
224:
219:
214:
202:
197:
192:
186:
181:
176:
171:
166:
161:
156:
1142:
1340:
1322:
1281:
1105:
1088:
1074:
995:
909:
894:
851:
798:
762:
598:
583:
1575:
780:
1726:
1677:
Key
Concepts In Counselling And Psychotherapy: A Critical A-Z Guide To Theory
1366:
1199:
930:
766:
652:
313:
296:
1673:
1527:
1252:
1238:
1207:
1127:
734:
666:
955:
824:
276:
1303:
1217:
1179:
1040:
1033:
916:
869:
745:
723:
619:
532:
1381:
1241:
1225:
1149:
1082:
1064:
1036:
816:
774:
23:
1396:
602:
1631:. Vol. 21. New York; London: Academic Press. pp. 51–52.
908:
October 25 – Hugo A. F. Abt is granted a patent for his design of
902:
770:
755:
752:
527:
1164:
898:
549:
1363:
615:
1674:
Smith, Vicki; Collard, Patrizia; Nicolson, Paula (2012).
919:
in its original form is invented in the United States.
597:
discovers the effective anti-knocking properties of
1625:"Vitamin A, Vitamin D, Cartilage, Bones, and Teeth"
1277:(died 2008), American "father of genetic medicine".
48:. Unsourced material may be challenged and removed.
1495:
1454:"The Collisions of Particles with Hydrogen Nuclei"
882:Spring and summer – 14-year-old American farm boy
1705:. Springfield: G. & C. Merriam. p. 442.
1724:
1251:(died 2009), American biochemist, discoverer of
890:, the basis for the first version of television.
819:demonstrates that a five-dimensional version of
552:research and development laboratory to focus on
535:involved some significant events, listed below.
538:
1498:50 Mathematical Ideas You Really Need to Know
1315:Heinrich Wilhelm Gottfried von Waldeyer-Hartz
505:
862:
694:, as "Logisch-Philosophische Abhandlung" in
1623:McClean, Franklin C.; Budy, Ann M. (1963).
1622:
1555:. Cambridge: University Press. p. 101.
1421:
813:("About the Hydrogen Molecular Ion Model").
811:Ăśber das Modell des Wasserstoff-MolekĂĽlions
1680:. McGraw-Hill Education (UK). p. 21.
1568:"Age-old children's disease back in force"
765:identifies the presence of a component in
512:
498:
120:Overview of the events of 1921 in science
108:Learn how and when to remove this message
1548:
901:for the automatic electric pop-up bread
1700:
1427:
1085:, "the father of green algae genetics".
628:the northernmost point of land on Earth
1725:
1565:
1493:
807:Ludwig Maximilian University of Munich
1595:
1526:
1469:(252): 923–940. 1921. Archived from
677:, an important text in the field of
46:adding citations to reliable sources
17:
13:
1598:"Fortified foods took out rickets"
1428:Chertok, Boris (31 January 2005).
1356:Hans Christian Cornelius Mortensen
943:Society for Science and the Public
14:
1754:
471:List of open letters by academics
464:Timeline of cosmological theories
1663:United States patent #1,394,519.
22:
1694:
1667:
1656:
1652:United States patent#1,394,450.
1095:), English research biochemist.
923:
33:needs additional citations for
1645:
1627:. In Harris, Robert S. (ed.).
1616:
1589:
1566:Carere, Suzanne (2007-07-25).
1559:
1549:Macmahon, Major P. A. (1921).
1542:
1520:
1487:
1446:
1054:), American nuclear physicist.
751:announce the discovery of the
691:Tractatus Logico-Philosophicus
634:
609:
560:
1:
1414:
876:
835:
740:July 27 – Researchers at the
671:Idealtheorie in Ringbereichen
622:first sets foot on and names
478:History of technology by type
396:Governance and policy studies
1288:), American physical chemist
1067:, principal inventor of the
868:, a comprehensive review of
858:Gaëtan Gatian de Clérambault
696:Annalen der Naturphilosophie
601:, which is used in "leaded"
573:
424:Extraterrestrial environment
7:
1596:Conis, Elena (2006-07-24).
1502:. London: Quercus. p.
712:
586:publish a key paper on the
539:Astronomy and space science
370:Sustainable energy research
10:
1759:
864:Les Psychoses passionelles
791:
1574:. Toronto. Archived from
1552:New Mathematical Pastimes
1292:
1266:), Mexican-born Canadian
1069:Global Positioning System
988:
949:
646:A Treatise on Probability
485:List of science timelines
375:Transportation technology
1701:McHenry, Robert (1980).
1530:(1935). "Emmy Noether".
1330:Sherburne Wesley Burnham
1021:), American cosmologist.
702:Percy Alexander MacMahon
567:Winkel tripel projection
133:List of years in science
1738:20th century in science
1410:), American astronomer.
1336:), American astronomer.
1191:developmental biologist
706:Cairo pentagonal tiling
546:Gas Dynamics Laboratory
429:Terrestrial environment
1462:Philosophical Magazine
1404:Henrietta Swan Leavitt
1260:Beatrice Helen Worsley
1189:(died 2009), American
1063:(died 2014), American
1008:Nobel Prize in Physics
980:Physiology or Medicine
935:William Emerson Ritter
863:
1629:Vitamins and Hormones
1494:Crilly, Tony (2007).
1178:(died 1991), British
1104:(died 2009), British
1002:), Japanese-American
823:'s equations unifies
742:University of Toronto
684:First publication of
661:differential geometry
416:Dinosaurs' extinction
1119:), Italian-American
803:Doctor of Philosophy
761:American biochemist
733:vaccination against
729:July 18 – The first
42:improve this article
1532:Scripta Mathematica
1300:Mary Watson Whitney
1187:Aron Arthur Moscona
1136:biomedical engineer
1102:Olgierd Zienkiewicz
1006:, recipient of the
785:epidural anesthesia
686:Ludwig Wittgenstein
657:Thue–Morse sequence
641:John Maynard Keynes
624:Kaffeklubben Island
1431:Rockets and People
1275:Victor A. McKusick
1268:computer scientist
1169:orthopedic surgeon
1081:), Anglo-American
1015:Ralph Asher Alpher
588:strong interaction
1712:978-0-87779-064-8
1687:978-0-335-24221-4
1603:Los Angeles Times
1513:978-1-84724-008-8
1212:cognitive therapy
1176:Anne Beloff-Chain
1026:LĂ©opold Reichling
1004:nuclear physicist
842:Hermann Rorschach
773:, which he calls
749:Frederick Banting
675:ideal ring theory
554:rocket technology
522:
521:
320:
319:
145:
144:
118:
117:
110:
92:
57:"1921 in science"
1750:
1743:1920s in science
1717:
1716:
1698:
1692:
1691:
1671:
1665:
1660:
1654:
1649:
1643:
1642:
1620:
1614:
1613:
1611:
1610:
1593:
1587:
1586:
1584:
1583:
1563:
1557:
1556:
1546:
1540:
1539:
1524:
1518:
1517:
1501:
1491:
1485:
1484:
1482:
1481:
1475:
1458:
1450:
1444:
1443:
1441:
1439:
1425:
1389:John Boyd Dunlop
1374:Joel Asaph Allen
1157:Gavriil Ilizarov
1048:John R. Huizenga
941:, later renamed
884:Philo Farnsworth
866:
850:, proposing the
847:Psychodiagnostik
829:electromagnetism
720:Nicolae Paulescu
679:abstract algebra
544:Commencement of
514:
507:
500:
437:Tornado research
322:
321:
127:
126:
123:
122:
113:
106:
102:
99:
93:
91:
50:
26:
18:
1758:
1757:
1753:
1752:
1751:
1749:
1748:
1747:
1733:1921 in science
1723:
1722:
1721:
1720:
1713:
1703:Liberty's Women
1699:
1695:
1688:
1672:
1668:
1661:
1657:
1650:
1646:
1639:
1621:
1617:
1608:
1606:
1594:
1590:
1581:
1579:
1564:
1560:
1547:
1543:
1525:
1521:
1514:
1492:
1488:
1479:
1477:
1473:
1456:
1452:
1451:
1447:
1437:
1435:
1426:
1422:
1417:
1295:
1249:Mahlon Hoagland
1121:organic chemist
1113:Giuliana Tesoro
1061:Roger L. Easton
991:
975:Frederick Soddy
965:Albert Einstein
952:
939:Science Service
926:
888:image dissector
879:
838:
821:Albert Einstein
809:for his thesis
801:is awarded his
794:
718:April–August –
715:
637:
612:
576:
563:
541:
518:
383:Social sciences
341:
336:
326:1921 in science
311:
268:
227:
189:
121:
114:
103:
97:
94:
51:
49:
39:
27:
12:
11:
5:
1756:
1746:
1745:
1740:
1735:
1719:
1718:
1711:
1693:
1686:
1666:
1655:
1644:
1637:
1615:
1588:
1558:
1541:
1519:
1512:
1486:
1445:
1419:
1418:
1416:
1413:
1412:
1411:
1402:December 12 –
1400:
1385:
1370:
1352:
1341:John Burroughs
1337:
1326:
1323:neuroanatomist
1311:
1294:
1291:
1290:
1289:
1282:Isabella Karle
1278:
1271:
1256:
1245:
1231:
1230:
1229:
1215:
1194:
1183:
1172:
1153:
1139:
1124:
1109:
1106:civil engineer
1098:
1097:
1096:
1089:Jennifer Moyle
1086:
1075:Ralph A. Lewin
1072:
1055:
1044:
1022:
1011:
996:Yoichiro Nambu
990:
987:
986:
985:
984:
983:
977:
968:
967:– awarded 1922
951:
948:
947:
946:
933:and biologist
925:
922:
921:
920:
913:
910:bascule bridge
906:
895:Charles Strite
891:
878:
875:
874:
873:
855:
837:
834:
833:
832:
814:
799:Wolfgang Pauli
793:
790:
789:
788:
778:
763:Elmer McCollum
759:
738:
727:
714:
711:
710:
709:
699:
682:
664:
650:
636:
633:
632:
631:
611:
608:
607:
606:
599:tetraethyllead
595:Thomas Midgley
591:
584:James Chadwick
580:Étienne Biéler
575:
572:
571:
570:
562:
559:
558:
557:
540:
537:
520:
519:
517:
516:
509:
502:
494:
491:
490:
489:
488:
481:
474:
467:
460:
455:
447:
446:
442:
441:
440:
439:
431:
430:
426:
425:
421:
420:
419:
418:
410:
409:
401:
400:
399:
398:
393:
385:
384:
380:
379:
378:
377:
372:
364:
363:
359:
358:
357:
356:
348:
347:
343:
342:
337:
332:
329:
328:
318:
317:
310:
309:
304:
299:
294:
289:
284:
279:
273:
270:
269:
267:
266:
258:
253:
248:
243:
238:
233:
228:
222:
217:
212:
205:
200:
195:
190:
184:
179:
174:
169:
164:
159:
150:
147:
146:
143:
142:
135:
130:
119:
116:
115:
30:
28:
21:
9:
6:
4:
3:
2:
1755:
1744:
1741:
1739:
1736:
1734:
1731:
1730:
1728:
1714:
1708:
1704:
1697:
1689:
1683:
1679:
1678:
1670:
1664:
1659:
1653:
1648:
1640:
1638:9780080866185
1634:
1630:
1626:
1619:
1605:
1604:
1599:
1592:
1578:on 2008-05-17
1577:
1573:
1569:
1562:
1554:
1553:
1545:
1537:
1533:
1529:
1528:Weyl, Hermann
1523:
1515:
1509:
1505:
1500:
1499:
1490:
1476:on 2014-08-19
1472:
1468:
1464:
1463:
1455:
1449:
1433:
1432:
1424:
1420:
1409:
1405:
1401:
1398:
1394:
1390:
1387:October 23 –
1386:
1383:
1379:
1375:
1371:
1368:
1367:ornithologist
1365:
1361:
1357:
1353:
1350:
1346:
1342:
1338:
1335:
1331:
1327:
1324:
1320:
1316:
1313:January 23 –
1312:
1309:
1305:
1301:
1298:January 20 –
1297:
1296:
1287:
1283:
1280:December 2 –
1279:
1276:
1273:October 21 –
1272:
1269:
1265:
1261:
1258:October 18 –
1257:
1254:
1250:
1246:
1243:
1240:
1237:(died 2009),
1236:
1235:Rudolf TrĂĽmpy
1232:
1227:
1223:
1219:
1216:
1213:
1210:, "father of
1209:
1205:
1201:
1200:Aaron T. Beck
1198:
1197:
1195:
1192:
1188:
1184:
1181:
1177:
1173:
1170:
1166:
1162:
1158:
1154:
1151:
1148:
1145:(died 2008),
1144:
1140:
1137:
1133:
1129:
1125:
1122:
1118:
1114:
1110:
1107:
1103:
1099:
1094:
1090:
1087:
1084:
1080:
1076:
1073:
1070:
1066:
1062:
1059:
1058:
1056:
1053:
1049:
1045:
1042:
1038:
1035:
1031:
1027:
1023:
1020:
1016:
1013:February 3 –
1012:
1009:
1005:
1001:
997:
994:January 18 –
993:
992:
982:– not awarded
981:
978:
976:
972:
969:
966:
962:
959:
958:
957:
954:
953:
944:
940:
936:
932:
931:E. W. Scripps
928:
927:
918:
914:
911:
907:
904:
900:
897:is granted a
896:
893:October 18 –
892:
889:
885:
881:
880:
871:
867:
865:
859:
856:
853:
849:
848:
843:
840:
839:
830:
826:
822:
818:
815:
812:
808:
804:
800:
796:
795:
786:
782:
779:
776:
772:
768:
767:cod liver oil
764:
760:
757:
754:
750:
747:
743:
739:
736:
732:
728:
725:
721:
717:
716:
707:
703:
700:
697:
693:
692:
687:
683:
680:
676:
673:, developing
672:
668:
665:
662:
658:
654:
653:Marston Morse
651:
648:
647:
642:
639:
638:
629:
625:
621:
617:
614:
613:
604:
600:
596:
593:December 9 –
592:
589:
585:
581:
578:
577:
568:
565:
564:
555:
551:
547:
543:
542:
536:
534:
530:
529:
515:
510:
508:
503:
501:
496:
495:
493:
492:
487:
486:
482:
480:
479:
475:
473:
472:
468:
466:
465:
461:
459:
456:
454:
451:
450:
449:
448:
445:Other/related
444:
443:
438:
435:
434:
433:
432:
428:
427:
423:
422:
417:
414:
413:
412:
411:
408:
407:
403:
402:
397:
394:
392:
389:
388:
387:
386:
382:
381:
376:
373:
371:
368:
367:
366:
365:
361:
360:
355:
352:
351:
350:
349:
345:
344:
340:
335:
331:
330:
327:
324:
323:
316:
315:
308:
305:
303:
300:
298:
295:
293:
290:
288:
285:
283:
280:
278:
275:
274:
272:
271:
265:
262:
259:
257:
254:
252:
249:
247:
244:
242:
239:
237:
234:
232:
229:
226:
223:
221:
218:
216:
213:
211:
210:
206:
204:
201:
199:
196:
194:
191:
188:
185:
183:
180:
178:
175:
173:
170:
168:
165:
163:
160:
158:
155:
152:
151:
149:
148:
140:
136:
134:
131:
129:
128:
125:
124:
112:
109:
101:
98:December 2009
90:
87:
83:
80:
76:
73:
69:
66:
62:
59: –
58:
54:
53:Find sources:
47:
43:
37:
36:
31:This article
29:
25:
20:
19:
16:
1702:
1696:
1676:
1669:
1658:
1647:
1628:
1618:
1607:. Retrieved
1601:
1591:
1580:. Retrieved
1576:the original
1571:
1561:
1551:
1544:
1535:
1531:
1522:
1497:
1489:
1478:. Retrieved
1471:the original
1466:
1460:
1448:
1436:. Retrieved
1430:
1423:
1380:), American
1372:August 29 –
1347:), American
1253:transfer RNA
1247:October 5 –
1233:August 16 –
1224:), American
1208:psychiatrist
1206:), American
1143:George RĂ©dei
1134:), American
1128:Forrest Bird
938:
924:Institutions
886:devises the
861:
852:inkblot test
845:
810:
769:which cures
735:tuberculosis
695:
689:
670:
667:Emmy Noether
655:applies the
644:
525:
523:
483:
476:
469:
462:
406:Paleontology
405:
325:
312:
306:
287:Architecture
208:
207:
104:
95:
85:
78:
71:
64:
52:
40:Please help
35:verification
32:
15:
1572:thestar.com
1395:), British
1339:March 29 –
1328:March 11 –
1302:, American
1046:April 21 –
1024:March 11 –
956:Nobel Prize
929:Journalist
825:gravitation
781:Fidel Pagés
635:Mathematics
610:Exploration
561:Cartography
354:Archaeology
282:Archaeology
1727:Categories
1609:2012-01-26
1582:2012-01-26
1538:: 201–220.
1480:2014-08-31
1415:References
1349:naturalist
1321:), German
1304:astronomer
1218:John Glenn
1180:biochemist
1174:June 26 –
1155:June 15 –
1141:June 14 –
1041:naturalist
1034:Luxembourg
917:vibraphone
877:Technology
870:erotomania
860:publishes
844:publishes
836:Psychology
746:biochemist
724:pancreatic
669:publishes
643:publishes
620:Lauge Koch
548:the first
533:technology
458:Philosophy
453:Literature
391:Psychology
362:Technology
302:Philosophy
292:Literature
68:newspapers
1382:zoologist
1354:June 7 –
1242:geologist
1226:astronaut
1185:July 4 –
1150:biologist
1147:Hungarian
1126:June 9 –
1111:June 1 –
1100:May 18 –
1083:biologist
1065:physicist
1057:April 30
1037:biologist
971:Chemistry
817:T. Kaluza
783:pioneers
775:vitamin D
618:explorer
605:(petrol).
574:Chemistry
569:proposed.
524:The year
1397:inventor
1196:July 18
726:extract.
713:Medicine
704:depicts
603:gasoline
526:1921 in
1255:(tRNA).
961:Physics
903:toaster
797:July –
792:Physics
771:rickets
756:insulin
753:hormone
744:led by
528:science
307:Science
82:scholar
1709:
1684:
1635:
1510:
1438:29 May
1406:(born
1391:(born
1376:(born
1364:Danish
1358:(born
1343:(born
1332:(born
1317:(born
1306:(born
1293:Deaths
1284:(died
1262:(died
1220:(died
1202:(died
1167:-born
1165:Polish
1159:(died
1130:(died
1115:(died
1091:(died
1077:(died
1050:(died
1028:(died
1017:(died
998:(died
989:Births
950:Awards
937:found
899:patent
616:Danish
550:Soviet
346:Fields
84:
77:
70:
63:
55:
1474:(PDF)
1457:(PDF)
1239:Swiss
297:Music
139:table
89:JSTOR
75:books
1707:ISBN
1682:ISBN
1633:ISBN
1508:ISBN
1440:2022
1408:1868
1393:1840
1378:1838
1360:1856
1345:1837
1334:1838
1319:1836
1308:1847
1286:2017
1264:1972
1222:2016
1204:2021
1161:1992
1132:2015
1117:2002
1093:2016
1079:2008
1052:2014
1039:and
1030:2009
1019:2007
1000:2015
915:The
827:and
582:and
531:and
339:1922
334:1920
314:+...
261:1931
256:1930
251:1929
246:1928
241:1927
236:1926
231:1925
225:1924
220:1923
215:1922
209:1921
203:1920
198:1919
193:1918
187:1917
182:1916
177:1915
172:1914
167:1913
162:1912
157:1911
61:news
1362:),
1163:),
1032:),
805:at
731:BCG
688:'s
659:to
277:Art
44:by
1729::
1600:.
1570:.
1534:.
1506:.
1504:57
1467:42
1465:.
1459:.
1214:".
973:–
963:–
626:,
141:)
1715:.
1690:.
1641:.
1612:.
1585:.
1536:3
1516:.
1483:.
1442:.
1399:.
1384:.
1369:.
1351:.
1325:.
1310:)
1270:.
1244:.
1228:.
1193:.
1182:.
1171:.
1152:.
1138:.
1123:.
1108:.
1071:.
1043:.
1010:.
912:.
905:.
872:.
854:.
831:.
787:.
777:.
758:.
737:.
708:.
698:.
681:.
663:.
649:.
630:.
590:.
556:.
513:e
506:t
499:v
264:…
154:…
137:(
111:)
105:(
100:)
96:(
86:·
79:·
72:·
65:·
38:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
