2019-02-01_Popular_Science

CONTENTS

cover photograph by The Voorhes / infographic by Sara Chodosh POPSCI.COM • SPRING 2019 7

Charted

In Profile

Goods

The Big Q

Features

Tales

Head Trip

I Wish...

HOW TO

READ THIS

CHART

terrestrial

aerial

geologic

atomic

aquatic

MODE OF TRANSPORT

how fast it’s going

how big it is

The icons

represent what’s

moving in each

story in this issue

Babysitting

robot drivers

p. 115

Movement that’s

just an illusion

p. 118

Why car trips

feel so long

p. 122

Puzzles to take

on the road

p. 120

Self-charging autos;

time travel; faster

airports p. 130

A head-scratching

treadmill trick

p. 120

The mileage of our

extra terrestrial

autos p. 14

The carbon cost

of travel, in trees

p. 18

A bridge to

the future

p. 12

Teleportation

that’ll kill you

p. 19

Our last

sips of oil

p. 20

Humankind’s most

daring journeys

p. 21

Earth’s quickest

critters

p. 16

How coffee and

tea traveled the

globe p. 24

Snaking transit

through ancient

history p. 28

The health effects

of extreme sports

p. 22

A delightful

mini motorcycle

p. 32

Sole-saving shoes

for every terrain

p. 34

A bomb car stereo

louder than the car

p. 35

One day,

125,798 flights

p. 26

Minding the gaps

in public transit

p. 64

Sans this bolt, we

can’t get to Mars

p. 72

Will we ever

commute by

jetpack? p. 55

A brief history of

road building

p. 80

Supersonic travel’s

second wave

p. 86

Tiny trains on

a big journey

p. 94

How we’ll endure

long-haul flights

p. 70

Mountain-lion

crossing

p. 108

Getting science

past the TSA

p. 110

The footprints of

ancient humans

p. 106

A chicken that

walks like a T. rex

p. 112

Supercontinents

of the future

p. 112

The steps of a

wandering toddler

p. 114

I ran a marathon

in space

p. 108

The best head-

phones to block

out the world p. 37

Top outfits to

wear on an

airplane p. 40

Baggage to

last a lifetime

p. 36

Analog navigation

tools for wilderness

treks p. 42

When will we trust

robots to drive?

p. 44

Designing the

perfect sailboat

p. 48

An engine that can

twist a car frame

p. 38