First Radar Echos From The Moon
notes: label: Description
content: Photograph representing the first radar echoes received from the moon using the Naval Research Laboratory 50-foot radio telescope at wavelengths as short as 10 centimeters and pulse lengths as short as 1/2,000,000th of a second. This work showed that the distance from the earth to the moon is 384,400.2 plus or minus 1.1 kilometers.
label: Location
content: Currently not on view
setName: label: See more items in
content: Medicine and Science: Physical Sciences
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: PH.325758
label: catalog number
content: 325758
label: accession number
content: 257196
objectType: label: Object Name
content: photograph
physicalDescription: label: Measurements
content: overall: 12 in x 9 1/2 in; 30.48 cm x 24.13 cm