How much does the earth weigh? From several previous measurements, 6,576,000,000,000,000,000,000 tdns. but Dr. Paul R. Heyl, of the Nationai Bureau of Standards, puts the figiure at he suspects that tliis staggering valu.>. may be a shade too high. Now he seeks a closer approximation by measuring the force of gravity with a speeial piatinum pendnlum swingingi in a vacuuni cliamber. The instrument, so sensitive that it is thrown out of balance when anyone approaches it, must be observed through a teleseope from a point 18 feet away. A small heat-insulated building keeps the surrouaclings at Ihfe required constant teinperature for ttBjba.
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https://paperspast.natlib.govt.nz/newspapers/HBHETR19370827.2.114.3
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Hawke's Bay Herald-Tribune, Issue 189, 27 August 1937, Page 9
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102Page 9 Advertisements Column 3 Hawke's Bay Herald-Tribune, Issue 189, 27 August 1937, Page 9
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