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in 1987, were widely discredited. Criticisms of the study have focused on Weber's data analysis and his incomplete definitions of what strength vibration would signify a passing gravitational wave.
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807:
611:
85:
Such experiments conducted by Joseph Weber were very controversial, and his positive results with the apparatus, in particular his claim to have detected gravitational waves from
82:
Around 1968, Weber collected what he concluded to be "good evidence" of the theorized phenomenon. However, his experiments were duplicated many times, always with a null result.
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and were designed to be set in motion by gravitational waves predicted by Weber. Because these waves were supposed to be so weak, the cylinders had to be massive and the
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186:
Einstein: A Centenary
Exhibition. Edited by the National Museum of History and Technology. Washington, D.C.: Smithsonian Institution Press, 1979.
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had to be very sensitive, capable of detecting a change in the cylinders' lengths by about 10 meters.
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123:, where Weber was a faculty member. The garden contains eight of the cores of Weber's bar detectors.
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100:: a Centenary Exhibit" from March 1979 to March 1980. A second is on display at the
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355:, Bonnier Corporation, May 1972, Vol. 200, No. 5, pp. 106–107 & 190–192,
247:"Early History of Gravitational Wave Astronomy: The Weber Bar Antenna Development"
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Weber, J. (1969), "Evidence for discovery of gravitational radiation",
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67:
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Weber's first "Gravitational Wave
Antenna" was on display in the
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Weber, J. (1968), "Gravitational-wave-detector events",
218:"Weber Garden Dedication Held March 12 - UMD Physics"
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119:Weber Memorial Garden was dedicated 2019 at the
62:These massive aluminium cylinders vibrated at a
16:Device used in gravitational wave observatories
951:(first-ever possible light from bh-bh merger)
382:
262:Weber, J. (1967), "Gravitational radiation",
150:"A Fleeting Detection of Gravitational Waves"
42:cylinders, 2 meters in length and 1 meter in
8:
197:"Resonant Bar Detector Dedicated at Hanford"
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963:(first black hole - neutron star merger)
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135:
7:
521:Stanford gravitational wave detector
349:How I discovered Gravitational Waves
148:Lindley, David (22 December 2005).
27:, first devised and constructed by
673:European Gravitational Observatory
14:
957:(first-ever "mass gap" collision)
111:The Weber Memorial Garden at the
1228:Astronomy in the United States
414:Gravitational-wave observatory
1:
1223:Gravitational-wave telescopes
1106:Gravitational wave background
658:LIGO Scientific Collaboration
251:History of Physics Newsletter
909:First observation (GW150914)
695:TAMA 20, later known as LISM
398:Gravitational-wave astronomy
1043:Tests of general relativity
341:10.1103/PhysRevLett.22.1320
312:10.1103/PhysRevLett.20.1307
1244:
705:Caltech 40m interferometer
284:10.1103/PhysRevLett.18.498
245:Gretz, Darrell J. (2018),
167:10.1103/PhysRevLett.25.180
38:. The device consisted of
25:detect gravitational waves
404:
199:. The LIGO web newsletter
1146:Supermassive black holes
102:LIGO Hanford Observatory
23:is a device designed to
985:Resonant mass detectors
320:Physical Review Letters
292:Physical Review Letters
264:Physical Review Letters
94:Smithsonian Institution
121:University of Maryland
116:
113:University of Maryland
36:University of Maryland
1170:Rotating neutron star
981:Laser interferometers
110:
72:piezoelectric sensors
1062:Effects / properties
991:Atom interferometers
904:List of observations
831:Pulsar timing arrays
1151:Stellar black holes
1131:quantum fluctuation
1011:Pulsar timing array
998:Indirect detection
938:neutron star merger
721:INDIGO (LIGO-India)
332:1969PhRvL..22.1320W
304:1968PhRvL..20.1307W
276:1967PhRvL..18..498W
64:resonance frequency
52:gravitational waves
1038:General relativity
742:Einstein Telescope
644:Fermilab holometer
409:Gravitational wave
222:umdphysics.umd.edu
117:
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1209:
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977:Direct detection
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824:
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803:Big Bang Observer
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606:
605:
326:(24): 1320–1324,
298:(23): 1307–1308,
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1142:Binary inspiral
1136:Phase transition
1127:Cosmic inflation
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1115:Types / sources
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737:Cosmic Explorer
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614:interferometers
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597:Mario Schenberg
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475:Mario Schenberg
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353:Popular Science
347:Weber, Joseph.
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270:(13): 498–501,
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239:Further reading
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1085:speed of light
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669:Advanced Virgo
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595:(downsized to
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575:(downsized to
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566:Past proposals
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50:for detecting
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1199:other unknown
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1195:cosmic string
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1156:Neutron stars
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1016:Binary pulsar
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882:: Gravity Spy
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870:Einstein@Home
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863:Data analysis
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654:Advanced LIGO
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433:Resonant mass
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37:
33:
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26:
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1198:
1182:
1083:Travel with
1069:Polarization
988:
890:Observations
612:Ground-based
540:
323:
319:
295:
291:
267:
263:
254:
250:
225:. Retrieved
221:
212:
201:. Retrieved
191:
182:
171:. Retrieved
157:
153:
125:
118:
96:as part of "
91:
84:
81:
61:
32:Joseph Weber
20:
18:
1190:Hypothesis
1167:Continuous
771:Space-based
1217:Categories
1193:Colliding
1122:Stochastic
1094:chirp mass
989:Proposed:
880:Zooniverse
227:2019-05-09
203:2012-03-29
173:2006-05-06
130:References
1179:Supernova
1074:Spin-flip
700:TENKO-100
577:MiniGRAIL
541:Weber bar
470:MiniGRAIL
424:Detectors
361:0161-7370
257:(6): 1–16
58:Mechanism
40:aluminium
29:physicist
21:Weber bar
1181:or from
1099:Carried
1089:h strain
1079:Redshift
1053:Graviton
961:GW200105
955:GW190814
949:GW190521
944:GW190412
934:GW170817
929:GW170814
924:GW170608
919:GW170104
914:GW151226
849:NANOGrav
796:Proposed
730:Proposed
690:TAMA 300
593:Graviton
550:Proposed
491:EXPLORER
450:NAUTILUS
435:antennas
98:Einstein
66:of 1660
48:antennae
44:diameter
1201:sources
1185:sources
1183:unknown
1002:B-modes
971:Methods
936:(first
813:TianQin
780:Planned
714:Planned
531:GEOGRAV
501:ALLEGRO
328:Bibcode
300:Bibcode
272:Bibcode
154:Physics
87:SN1987A
78:History
34:at the
1175:Burst
1101:energy
1031:Theory
897:Events
808:DECIGO
649:GEO600
622:Active
526:ALTAIR
460:AURIGA
443:Active
359:
160:: 19.
875:PyCBC
664:KAGRA
633:ACIGA
588:SFERA
573:GRAIL
536:AGATA
511:NIOBE
68:hertz
1197:and
1161:EMRI
854:PPTA
844:IPTA
839:EPTA
787:LISA
683:Past
639:CLIO
629:AIGO
583:TIGA
557:TOBA
515:IGEC
505:IGEC
495:IGEC
484:Past
464:IGEC
454:IGEC
357:ISSN
1006:CMB
1004:of
336:doi
308:doi
280:doi
162:doi
1219::
351:,
334:,
324:22
322:,
306:,
296:20
294:,
278:,
268:18
266:,
255:13
253:,
249:,
220:.
158:16
156:.
152:.
138:^
104:.
54:.
46:,
19:A
1129:-
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940:)
675:)
671:(
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513:(
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462:(
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452:(
390:e
383:t
376:v
363:.
338::
330::
310::
302::
282::
274::
230:.
206:.
176:.
164::
115:.
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
