Scientific American - USA (2019-10)

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ScientificAmerican.com

OCTOBER 2019

A NEW THEORY OF OBESITY
Are ultraprocessed foods to blame?

PAG E
38

REVERSING DEATH
Partially revived pig brains raise hard questions

PAG E
34

ROOM-TEMPERATURE


SUPERCONDUCTORS


Are scientists nearing a breakthrough? PAGE 46


PRESCHOOL PEDAGOGY
Why instilling focus and
language skills fosters success PAGE 68

PLUS

SCIENCE IN CRISIS
The raging debate over statistical significance PAGE 62

How pterosaurs


evolved to dominate


the Mesozoic skies

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