This article was originally published in the January 2015 issue of Popular Science, under the title “Obsessed”.

Ryobi Phone Works Infrared Thermometer

Ryobi’s new tool plugs into a smartphone’s audio jack, allowing it to measure temperatures from -22°F to 662°F—in real time, no less. $50


Sure, it’s the kind of problem you’d see in a late-night infomercial, but spreading cold butter on toast isn’t easy. Struggle no more: Australian industrial design group Design Momentum embedded a grater into a butter knife, turning clumps into thin ribbons. $15


Filters improve photos only so much. Camera51 helps before the shutter snaps. The Android app analyzes the subject and surroundings, then guides users toward the ideal frame. It will even flag objects that might otherwise ruin a perfect image. Free

Blade 98S

Wilson’s Blade series is the first set of tennis rackets to incorporate basalt, a natural shock absorber, into the weave and the base. In tests, the Blade gave players better control over the ball, and it filtered and absorbed forces from impact. $230

EC Lync System

If there’s one thing closets and luggage always need, it’s more space. Eagle Creek solved that conundrum with a full-size rolling suitcase that can collapse—frame, wheels, and all—to a fraction of the size. From $280

ResMed S+

Most sleep trackers are mattress pads or wearable devices, which rely on your movement to tell if you’re asleep. They’re uncomfortable and can be inaccurate. S+ sits on a bedside table and uses low-frequency radio waves to measure breathing and determine when you’re actually sleeping or lying awake. $150

“Things Come Apart”

January means it’s time for a fresh perspective. “Things Come Apart,” a calendar based on photographer Todd McLellan’s book of the same name, shows the inner workings of objects, like telephones and telescopes. $12.45

Uncharted Play Pulse

Soccket Ball inventor Uncharted Play has created a jump rope that turns rotational energy into electricity. Five minutes of jumping powers an LED lamp for an hour. $99

Extreme Pro SDXC UHS-I

SanDisk has created the largest-capacity SD card available. To pack a half-terabyte (512 GB) of memory into an object the size of a postage stamp, SanDisk arranged two vertical 16-die stacks side by side. $640


In director Michael Mann’s latest thriller, the world’s cybersecurity lies in the hands of a convicted hacker (Chris Hemsworth). He’s part of an international team that tries to stop criminals threatening to undo networks, nuclear reactors, and more. Jan. 16