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Corrections
December 2019, page 15—In the statement “He calculated that the radiation would have cooled from an initial temperature greater than 1010 K,” the figure should have been 1010 K.
January 2020, page 50—Quartz was mistakenly listed as a carbonate mineral.
1.
R.
Berkowitz
, Physics Today
72
(12
), 14
(2019
). 2.
D.
Kramer
, Physics Today
73
(1
), 44
(2020
). © 2020 American Institute of Physics.
2020
American Institute of Physics
