Popular Mechanics - USA (2020-11 & 2020-12)

Clean your hands. Clean your phone. It only takes sending one text, answering a phone call, or reading a short article to transf ...

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One audio engineer calls the long-range acoustic device (LRAD) the “sound equivalent of looking into the sun.” 22 November/Decem ...

November/December 2020 23 a voice or recording across thousands of meters. In the other, it emits a “deterrent tone” designed to ...

24 November/December 2020 PH OT O^ I LL US TR AT ION CR EA TE D^ B Y^ A LYS E^ M AR KE L^ U SIN G^ G ET TY IM AG ES Space 7 // B ...

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26 November/December 2020 Space 7 leagues mapped out various def lection scenarios for Bennu that unfolded over the course of 30 ...

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Domokos and his team analyzed the fracture pattern of a rock outcrop outside of Budapest. The fragments were roughly squarish. 2 ...

T he very best hunting knives possess a perfect balance of form and function. They’re carefully constructed from fine materials, ...

30 November/December 2020 CO UR TE SY PA RA MO UN T^ P ICT UR ES 8 Science at Budapest University of Technolog y. To understand ...

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32 November/December 2020 ILL US TR AT ION BY AL YS E^ M AR KE L Deep Math 9 // BY CAROLINE DELBERT // Two Mathematicians Just S ...

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34 November/December 2020 Deep Math 9 nected, create a perfect square (see fig. 1). Researchers proved this for “smooth, continu ...

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HE BUILDS THE WORLD’S GREATEST MAGIC TRICKS. BUT WILL HE ACTUALLY TELL US HIS SECRETS? BY DAVID HOWARD · PHOTOGRAPHY BY JOSÉ MAN ...

November/December 2020 37 ...

A group of random audience members file on stage and each place a personal possession inside a sturdy, commercial- model safe, o ...