The First Known Antiparticle

The First Known Antiparticle (HM2BX4)

Location: Pasadena, CA 91125
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Country: United States of America
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N 34° 8.203', W 118° 7.55'

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Historic Physics Site

Near this site, in August 1932, Carl David Anderson photographed the track of a cosmic ray particle in his cloud chamber. He identified this particle as the positron — the first known antiparticle.
Historic Physics Site, Register of Historic Sites, American Physical Society.
Details
HM NumberHM2BX4
Tags
Placed ByAmerican Physical Society
Marker ConditionNo reports yet
Date Added Tuesday, October 2nd, 2018 at 11:02pm PDT -07:00
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Locationbig map
UTM (WGS84 Datum)11S E 396196 N 3777887
Decimal Degrees34.13671667, -118.12583333
Degrees and Decimal MinutesN 34° 8.203', W 118° 7.55'
Degrees, Minutes and Seconds34° 8' 12.18" N, 118° 7' 33" W
Driving DirectionsGoogle Maps
Area Code(s)626
Closest Postal AddressAt or near , Pasadena CA 91125, US
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