36:
414:
physicists. When
Hofstadter was awarded the 1961 Nobel Prize in Physics, it subsequently appeared in the text of his 1961 Nobel Lecture, "The electron-scattering method and its application to the structure of nuclei and nucleons" (December 11, 1961).
539:
Hofstadter, Robert, Department of
Physics, Stanford University, Stanford, California, "Electron Scattering and Nuclear Structure," Rev. Mod. Phys. 28, 214–254 (1956) © 1956 The American Physical Society
491:
474:
433:
578:
550:
Hofstadter, Robert, "The electron-scattering method and its application to the structure of nuclei and nucleons," Nobel
Lecture (December 11, 1961)
378:
505:
571:
449:
564:
58:
430:
273:
251:
595:
529:
Blatt, John M.; Weisskopf, Victor F. (1952), Theoretical
Nuclear Physics, New York: Wiley, pp. 14–16.
406:
549:
383:, and added to the SI in 1964, using the Danish word for "15" and the similarity in spelling with
556:
45:
242:
410:
entitled "Electron
Scattering and Nuclear Structure". The term is widely used by nuclear and
509:
8:
263:
232:
193:
485:
401:
411:
437:
289:
280:, which means a quadrillionth of one metre. This distance is sometimes called a
228:
538:
988:
453:
359:
189:
982:
587:
400:(1901–1954), one of the founders of nuclear physics. The term was coined by
348:
155:
138:
113:
397:
285:
20:
963:
621:
366:
174:
41:
284:
and was so named in honour of
Italian naturalized to American physicist
953:
943:
933:
854:
764:
729:
710:
651:
641:
631:
605:
From smallest to largest (left to right). Commonly used units shown in
341:
301:
19:
For examples of things measuring between one and ten femtometres, see
913:
903:
893:
883:
864:
844:
799:
691:
681:
661:
394:
313:
923:
586:
35:
591:
352:
269:
73:
825:
506:"The Case of the Shrinking Proton | Perimeter Institute"
391:
319:
277:
127:
356:
256:
207:
355:
is approximately 0.841 femtometres while the radius of a
63:
508:. Perimeterinstitute.ca. 2013-08-23. Archived from
980:
490:: CS1 maint: bot: original URL status unknown (
236:
572:
295:
268:'unit of measurement') is a unit of
480:. Archived from the original on 2012-04-25.
579:
565:
34:
431:Conversion from fermi to femtometer (fm)
380:Conférence Générale des Poids et Mesures
377:The femtometre was adopted by the 11th
981:
560:
288:, as it is a typical length-scale of
362:is approximately 8.45 femtometres.
13:
14:
1000:
543:
532:
523:
498:
467:
442:
424:
1:
418:
404:in a 1956 paper published in
390:The fermi is named after the
274:International System of Units
257:
7:
10:
1005:
372:
296:Definition and equivalents
246:
18:
616:
603:
452:. Unc.edu. Archived from
407:Reviews of Modern Physics
185:
134:
109:
105:
87:
79:
69:
57:
52:
33:
28:
475:"Nuclear Size and Shape"
672:femtometre/fermi
237:
436:May 23, 2011, at the
227:, (derived from the
219:(American spelling
100:... is equal to ...
53:General information
964:quettametre
622:quectometre
596:order of magnitude
200:
187:
144:
136:
119:
111:
976:
975:
954:ronnametre
944:yottametre
934:zettametre
855:hectometre
652:zeptometre
642:yoctometre
632:rontometre
402:Robert Hofstadter
347:For example, the
276:(SI) equal to 10
267:
255:
213:
212:
88:Conversions
996:
969:
967:
959:
957:
949:
947:
939:
937:
929:
927:
919:
917:
914:petametre
909:
907:
904:terametre
899:
897:
894:gigametre
889:
887:
884:megametre
879:
877:
860:
858:
857:(hm=100 m)
850:
848:
847:(dam=10 m)
845:decametre
840:
838:
821:
819:
817:
815:
814:
811:
808:
800:decimetre
795:
793:
791:
789:
788:
785:
782:
760:
758:
756:
754:
753:
750:
747:
725:
723:
706:
704:
687:
685:
682:picometre
677:
675:
667:
665:
662:attometre
657:
655:
647:
645:
637:
635:
627:
625:
581:
574:
567:
558:
557:
552:
547:
541:
536:
530:
527:
521:
520:
518:
517:
502:
496:
495:
489:
481:
479:
471:
465:
464:
462:
461:
446:
440:
428:
340:femtometres = 1
339:
338:
335:
332:
329:
322:
312:= 0.000001
262:
260:
250:
248:
240:
205:
201:
188:
172:
170:
163:
152:
150:
145:
137:
130:
125:
120:
112:
44:and perspective
38:
26:
25:
1004:
1003:
999:
998:
997:
995:
994:
993:
979:
978:
977:
972:
966:(Qm=10 m)
965:
962:
955:
952:
945:
942:
935:
932:
925:
924:exametre
922:
915:
912:
905:
902:
895:
892:
886:(Mm=10 m)
885:
882:
871:
863:
856:
853:
846:
843:
832:
824:
812:
809:
806:
805:
803:
801:
798:
786:
783:
780:
779:
777:
771:
763:
751:
748:
745:
744:
742:
736:
728:
717:
709:
698:
690:
683:
680:
673:
670:
663:
660:
653:
650:
643:
640:
633:
630:
624:(qm=10 m)
623:
620:
612:
599:
585:
555:
548:
544:
537:
533:
528:
524:
515:
513:
504:
503:
499:
483:
482:
477:
473:
472:
468:
459:
457:
448:
447:
443:
438:Wayback Machine
429:
425:
421:
375:
336:
333:
330:
327:
325:
317:
298:
290:nuclear physics
203:
199:
186:
180:
168:
166:
164:
161:
158:
154:
148:
146:
143:
135:
123:
121:
118:
110:
48:
24:
17:
12:
11:
5:
1002:
992:
991:
974:
973:
971:
970:
960:
950:
940:
930:
920:
910:
900:
890:
880:
876:=1000 m)
861:
851:
841:
822:
796:
761:
726:
716:/micron
707:
688:
678:
668:
658:
648:
638:
628:
617:
614:
613:
604:
601:
600:
584:
583:
576:
569:
561:
554:
553:
542:
531:
522:
497:
466:
441:
422:
420:
417:
374:
371:
369:= 100 fm
297:
294:
211:
210:
197:
183:
182:
178:
159:
156:
141:
132:
131:
116:
107:
106:
103:
102:
97:
90:
89:
85:
84:
81:
77:
76:
71:
67:
66:
61:
55:
54:
50:
49:
39:
31:
30:
16:Unit of length
15:
9:
6:
4:
3:
2:
1001:
990:
987:
986:
984:
968:
961:
958:
951:
948:
941:
938:
931:
928:
921:
918:
911:
908:
901:
898:
891:
888:
881:
878:
875:
869:
868:
862:
859:
852:
849:
842:
839:
836:
830:
829:
823:
820:
797:
794:
775:
769:
768:
762:
759:
740:
734:
733:
727:
724:
721:
715:
714:
708:
705:
702:
696:
695:
689:
686:
679:
676:
669:
666:
659:
656:
649:
646:
639:
636:
629:
626:
619:
618:
615:
610:
609:
602:
597:
593:
589:
582:
577:
575:
570:
568:
563:
562:
559:
551:
546:
540:
535:
526:
512:on 2014-04-23
511:
507:
501:
493:
487:
476:
470:
456:on 2018-07-09
455:
451:
445:
439:
435:
432:
427:
423:
416:
413:
409:
408:
403:
399:
396:
393:
388:
386:
382:
381:
370:
368:
363:
361:
358:
354:
350:
349:charge radius
345:
343:
323:
321:
315:
311:
307:
303:
300:1000000
293:
291:
287:
283:
279:
275:
271:
265:
259:
253:
244:
243:Ancient Greek
239:
234:
230:
226:
222:
218:
209:
198:
195:
191:
184:
181:
177:
162:
142:
140:
139:Natural units
133:
129:
117:
115:
114:SI base units
108:
104:
101:
98:
96:
92:
91:
86:
82:
78:
75:
72:
68:
65:
62:
60:
56:
51:
47:
43:
37:
32:
27:
22:
873:
866:
865:
834:
827:
826:
773:
766:
765:
738:
731:
730:
722:=10 m)
719:
712:
711:
703:=10 m)
700:
693:
692:
671:
608:bold italics
607:
606:
545:
534:
525:
514:. Retrieved
510:the original
500:
469:
458:. Retrieved
454:the original
444:
426:
405:
398:Enrico Fermi
389:
384:
379:
376:
364:
346:
324:
309:
305:
299:
286:Enrico Fermi
281:
224:
220:
216:
214:
175:
99:
94:
70:Unit of
21:1 femtometre
302:zeptometres
241:'fifteen',
196: units
59:Unit system
42:helium atom
767:centimetre
732:millimetre
713:micrometre
516:2015-11-04
460:2015-11-04
450:"Units: F"
419:References
342:millimetre
306:femtometre
223:), symbol
221:femtometer
217:femtometre
93:1 fm
46:magnitudes
29:Femtometre
867:kilometre
818: m)
792: m)
757: m)
694:nanometre
590:units of
395:physicist
314:nanometre
308:= 1
304:= 1
252:romanized
233:Norwegian
983:Category
486:cite web
434:Archived
412:particle
318:10
206:10
190:imperial
126:10
870:
816:
804:
790:
778:
770:
755:
743:
735:
697:
392:Italian
373:History
365:1
360:nucleus
272:in the
266:
254::
165:
831:
592:length
588:Metric
353:proton
320:metres
278:metres
270:length
258:metrοn
247:μέτρον
238:femten
229:Danish
202:3.9370
173:
167:1.8897
153:
147:6.1877
95:in ...
80:Symbol
74:length
989:Metre
828:metre
478:(PDF)
385:fermi
351:of a
310:fermi
282:fermi
235:word
956:(Rm)
946:(Ym)
936:(Zm)
926:(Em)
916:(Pm)
906:(Tm)
896:(Gm)
802:(dm=
752:1000
684:(pm)
674:(fm)
664:(am)
654:(zm)
644:(ym)
634:(rm)
594:(by
492:link
367:barn
357:gold
264:lit.
231:and
215:The
40:The
787:100
337:000
334:000
331:000
328:000
985::
874:km
813:10
774:cm
739:mm
720:μm
701:nm
488:}}
484:{{
387:.
344:.
316:=
292:.
261:,
249:,
245::
225:fm
208:in
194:US
171:10
151:10
83:fm
64:SI
872:(
837:)
835:m
833:(
810:/
807:1
784:/
781:1
776:=
772:(
749:/
746:1
741:=
737:(
718:(
699:(
611:.
598:)
580:e
573:t
566:v
519:.
494:)
463:.
326:1
204:×
192:/
179:0
176:a
169:×
160:P
157:ℓ
149:×
128:m
124:×
122:1
23:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
