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
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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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