(Antfer) #1
Home
We found the best
smart locks—without
breaking and entering.
p.

The History
of Maps
No clear origin. No
known inventor. But
are maps the most
underappreciated
“device” of all time?
p.

The Future of
Off-Road Is
Electric
As soon as 2021,
the best adventure
vehicles will come
from Rivian, Bollinger,
and Tesla. p.

POPULAR MECHANICS (ISSN 0032-4558) is published six times per year by Hearst, 300 West 57th St., NY, NY 10019 USA. Steven R. Swartz, President & Chief Executive Officer; William R.
Hearst III, Chairman; Frank A. Bennack, Jr., Executive Vice Chairman; Mark E. Aldam, Chief Operating Officer. Hearst Magazine Media, Inc.: Troy Young, President; Kate Lewis, Chief Content
Officer; Debi Chirichella, Executive Vice President, Chief Financial Officer & Treasurer; Kristen M. O’Hara, Chief Business Officer; Catherine A. Bostron, Secretary. Copyright 2020 by Hearst
Magazine Media, Inc. All rights reserved. Popular Mechanics is a registered trademark of Hearst Communications, Inc. Customer Service: For changes of address, and subscription orders, visit
service.popularmechanics.com or write to Customer Service, Popular Mechanics, P.O. Box 6000, Harlan, IA 51593. Popular Mechanics (PM) cannot be responsible for unsolicited material.
Mailing lists: From time to time we make our subscriber list available to companies that sell goods and services by mail that we believe would interest our readers. If you would rather not
receive such offers via postal mail, please send your current mailing label or exact copy to Mail Preference Service, P.O. Box 6000, Harlan, IA 51593. You can also visit preferences.hearstmags.
com to manage your preferences and opt out of receiving marketing offers by mail. Periodicals postage paid at N.Y., N.Y., and at ad di t i o na l ma ilin g offi ce s. C a nada Po s t I nte r nat i o na l Pu b li c at i o n s
mail product (Canadian distribution) sales agreement no. 40012499. CANADA BN NBR 10231 0943 RT. POSTMASTER: Send all UAA to CFS. (See DMM 707.4.12.5); non-postal and military
facilities: send address corrections to Popular Mechanics, P.O. Box 6000, Harlan, IA 51593. As a service to readers, PM publishes newsworthy products, techniques, and scientific and tech-
nological development s. Due to possible variance in the qualit y, condition of materials, workmanship, PM cannot assume responsibilit y for proper application of techniques or proper and safe
functioning of manufactured products or reader-built projects resulting from information published in this magazine.

5 6789

10 11 12 13 14

1 234

My Pop Life
Tips, gear picks, and
confessions from our
staff. p.

From the Editor
The unexpected
efficiencies of a car
with solar panels. p.

Deep Math
This riddle confounded
us: How many triangles
do you see? p.

Science
Why does our body
temperature keep
falling? p.

Drinks
This summer, ditch the
hard seltzer. Make one
of these instead. p.

To o l s
The best air
conditioning on
wheels. You’re
welcome. p.

Machines
The dogged, durable
legacy of the immortal
B-52. p.

Cars & Trucks
Discover the full
potential of your 4WD
system. p.

Pro Challenge
Your task: “Build
something useful with
LEGO.” p.

This Changed
Everything
The ingenious vision of
the first handheld GPS
device. p.

Editors' Choice
The handheld devices
(and their accessories)
we can’t put down.
p.

How to Be Good
at What You Do
At a Brooklyn vinyl
plant, art meets
machine. p.

Outdoor Awards
Our test team selects
the best hiking, cycling,
and camping gear.
p.

// ON THE COVER // 1904 USGS TOPOGRAPHIC MAP OF THE MOUNT DESERT QUADRANGLE, MAINE. DIGITALLY RENDERED ELEVATION BY SCOTT REINHARD.

July/August
2020

When Grizzlies
Invade Your
Neighborhood
Why an apex predator
returned to Shelby,
Montana—a place now
overrun with humans.
p.

The Race to
Make Cell-
Grown Meats
Mainstream
Would you eat a
chicken nugget that
came from a petri
dish? p.

PH


AS


/U


NIV


ER


SA


L^ I


MA


GE


S^ G


RO


UP


VI


A^ G


ET


TY


IM


AG


ES


(M


AP


);^ C


OU


RT


ES


Y^ T


ES


LA


(C


YB


ER


TR


UC


K);


KE


LS


EY


M


CC


LE


LL


AN


(L


AB


M


EA


T);


AM


Y^ G


RIS


AK


(G


RIZ


ZL


Y^ B


EA


R)


// STA NDAR DS //

// FEATURES //