John Alexander

Contributor

About

John Alexander is a contributor at Popular Science, with a specialty in Buyer’s Guides. He was formerly a biologist, working as an assistant in laboratories before moving onto education and, finally, writing. In addition to Popular Science, his work has appeared in WIRED, DigitalTrends, and HeadPhonesty.

More from John Alexander

LEVOIT OasisMist 1000S in a room with two happy people.
DIY

Humidifiers vs. Dehumidifiers: How they work and what you need

By John Alexander

The Best Home Wind Turbines Of 2024 on a plain white background.
DIY

The best home wind turbines for 2024, according to experts

By John Alexander, Nick Hilden

Best air quality monitors sliced header
Appliances

The best air quality monitors for 2024, according to experts

By John Alexander

Best home weather stations sliced header
Environment

The best home weather stations for 2024

By John Alexander

The best metal detectors for gold in 2024 on a plain white background.
Gear

The best metal detectors for gold at any budget

By John Alexander, Gabriel Morgan

The best microphones for students in 2024 on a plain white background.
DIY

The best microscopes for students in 2024

By John Alexander

The best solar deck lights
Gear

The best solar deck lights in 2024

By John Alexander

The best budget 3D printers for 2024 on a plain white background.
Computers

The best budget 3D printers for 2024

By John Alexander

A lineup of four of the best fire extinguishers.
Gear

The best fire extinguishers for 2024

By John Alexander

The best tower fans for 2024
Gear

The best tower fans for 2024

By John Alexander

Four of the best small humidifiers side by side on a plain white background.
Climate Change

The best small dehumidifiers for 2024

By John Alexander

Blue Microphone Yeti and Yeti X in front of a computer
Audio

Logitech for Creators Blue Yeti vs. Yeti X: Which podcasting mic should you buy?

By Markkus Rovito, John Alexander

Best snow blowers for gravel driveways sliced header
Gear

The best snow blowers for gravel driveways of 2024

By John Alexander

A man and a woman sitting next to each other playing games on their phones.
DIY

The best Android games for unlocking new worlds

By John Alexander

Best garage heaters sliced header
Appliances

The best garage heaters in 2024

By John Alexander

The best electric fireplaces composited
Gear

The best electric fireplaces in 2024

By John Alexander

3D printer resin sliced header
Computers

The best 3D printer resin in 2024

By John Alexander

four of the The best 3D printers for miniatures composited into a collage
Computers

The best 3D printers for miniatures in 2024

By John Alexander

A lineup of the best smart home security systems on a white background.
DIY

The best smart home security systems of 2024

By John Alexander

The best monitors for streaming
Computers

The best monitors for streaming in 2024

By John Alexander