John Kennedy, Popular Science

John Kennedy

Popular Science

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Past:
  • Popular Science

Past articles by John:

6 egg alternatives for these trying times

Eggs are scarcer and pricier, so you might want to rethink baking that cake. Unless you use one of these useful replacements we tested. → Read More

The best home innovations of 2022

A system that recycles water in your home, paint that won’t drip, and an easy-to-install smart showerhead are this year's Best of What’s New. → Read More

How to use the new lock screen customization features in iOS 16

Your iPhone's lock screen is the first thing you see when you pick up your phone, and iOS 16 comes with brand new expanded customization features. → Read More

The fastest way to post multiple Instagram story pics at once

For prolific posters, Instagram has a tool that allows you to post multiple photos to your story at once. Follow these steps to upload and edit in bulk. → Read More

Good news: Making your own Choco Taco is totally possible

The Choco Taco is no more, but you can make your own, with custom twists. Follow these steps to stock your freezer with replica nostalgic desserts. → Read More

Make the most out of your iPhone's back tap feature

Apple's Back Tap feature is a handy accessibility tool that can make it easier for you to access certain parts of your phone. Use this guide to see how. → Read More

Syncing Google and Apple calendars is less annoying now

Syncing Google Calendar with the Apple calendar app used to be complicated and obnoxious, but it's easier now. Use these steps to link the two. → Read More

The scientifically best way to pack a cooler

The best way to pack a cooler involves a little bit of preparation. But once you've got everything set, follow these tips to keep things cool for longer. → Read More

How to grab and move multiple iPhone apps at once

It's easy to move iPhone apps around individually, but Apple has kept a useful feature somewhat hidden. This is how to grab and move multiple apps. → Read More

5 ways to get Craiyon, formerly Dall-E mini, to bend to your will

Dall-E mini, or as it's now known, Craiyon, is an open-source AI program that generates art from text prompts. Use these tips for best results. → Read More

Google’s expanded Markdown feature could change how you work

Google recently expanded the ability to use Markdown in Google Docs, Slides, and Drawings. Use this guide to decide if it's a typing style you want to use. → Read More

The fastest way to scan text on an iPhone or iPad

Apple just released iOS 15.4 and iPadOS 15.4, which comes with a handy shortcut for scanning text. Use these tips to make the most of it. → Read More

The button that will put your Instagram feed in chronological order

Ever since Instagram got rid of its chronological feed, people have asked for it back. Well, now it is. Use these steps to see the most recent posts first. → Read More

You can order more free COVID tests from the government—here’s how

Each US residential address can order two sets of four at-home COVID tests from the government for free. Do it now, before you need them. → Read More

The beginner’s guide to Substack’s new app

Substack just released an iOS and iPadOS app it hopes will be an improvement on email newsletters. Read this guide to learn how it works. → Read More

Perfect your aesthetic by choosing your own Instagram Story background

Instagram Stories may be more customizable than you think. Try one of these three solutions to change your Story background at will. → Read More

Discover interesting Reddit communities with this handy new feature

Reddit just rolled out the new Discover Tab for its mobile apps, aiming to help people find new content. Get a quick preview before you jump in. → Read More

How to convert HEIC files—or prevent them altogether

HEIC files can be jarring to deal with, but there are ways to make them easier to handle. Use these tips to convert and manage this highly efficient format. → Read More

A comprehensive guide to using social media when your safety’s at risk

When you could be under surveillance, a target of a cyber attack, or at risk of physical harm, knowing how to use social media more safely is key. → Read More

Your TV screen could probably use a cleaning—here’s how

TV screens can build up gunk or get hit with random splatter. Whatever the case, use these tips to clean your TV and get it looking as good as new. → Read More