Scientific American - USA (2019-12)

(Antfer) #1
HACKING GPS
The shocking vulnerability of
an essential system PA G E 3 8

BLACK HOLE PARADOX


Can information escape
from the abyss? PA G E 5 0

FIRE TORNADOES
Working to predict
a deadly phenomenon PAGE 60

DECEMBER 2019
ScientificAmerican.com
© 2019 Scientific American
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