Experiments Search Results

Ingredients 101: Selecting, Cleaning, & Storing Fresh Mushrooms

Eating vegetarian isn't just for vegetarians. There are plenty of reasons, health and economics-wise, to consider forgoing the meat for a meal or three. Rather than get deep into the world of fake meat (although there's many a tasty alternative to be found there, to be sure), you should consider getting to know your humble-seeming fungal friend: the mushroom. Thanks to their hearty flavor, cooks tend to treat mushrooms like meat, albeit one with its own unique characteristics. Mushrooms are e...

Apple Card's Fine Print: The Rules & Restrictions You Need to Know Before Applying for Apple's New Credit Card

Apple Card has generated quite the buzz since its March 2019 announcement. The iPhone maker's new credit card pairs with Apple Wallet on your device, is simple to sign up for, includes enhanced security over other cards, has zero fees, and provides daily rewards right to your Apple Cash account. And as good as that sounds, the fine print can complicate things real quick.

How To: Use an ESP8266 Beacon Spammer to Track Smartphone Users

Smartphones and laptops are constantly sending Wi-Fi radio signals, and many of these signals can be used to track us. In this guide, we'll program a cheap IoT device in Arduino to create hundreds of fake networks with common names; This will cause nearby devices to reveal their real trackable MAC address, and it can even let an attacker take over the phone's data connection with no warning.

How To: The Complete Guide on How to Build a Crystal Radio—Plus How They Work

There's a lot that goes into making a nice crystal radio set, so this is going to have to be broken down into two parts. The first part is the actual making of a functional radio, and the second part is making the whole arrangement look nice. In this part, I'm actually going to tell you more than just how to make a crystal radio, but I'm also going to explain how and why they work. Crystal radios are pretty Steampunk in and of themselves, since they were first developed in the late 19th centu...

NR30: Next Reality's 30 People to Watch in Augmented Reality in 2018

Welcome to the first annual Next Reality 30, our list of people who've made the biggest impact on the augmented reality space in the last 12 months — and what a 12-month roller-coaster ride it's been. Apple introduced ARKit-powered apps last fall, Google launched ARCore for Android soon after, Snapchat began monetizing AR, and the Magic Leap One headset finally came out. These are historic times.

How To: Remember These Popular App Store Games? They're Still Alive to Play Today

The App Store has been around for almost 14 years now, and during that time, we must have seen over a million games come and go and stay and expand. But only a tiny fraction of those games have become blockbuster sensations because of the mighty App Store's reach on iPhone and iPad, and many of the first big hits are still alive today for you to relive the good ol' days of mobile gaming.

How To: Demonstrate Newton's law of inertia

This short video clip shows seven demonstrations of Isaac Newton’s first law of motion– the law of inertia. Newton’s law of inertia states that objects moving at constant velocity will continue moving at constant velocity, unless acted upon by an outside unbalanced force. Six of these demonstrations (excluding number six) are from Tik Liem’s book Invitations to Science Inquiry.

How To: Change depth of field in Photoshop CS3

This photo editing software tutorial shows you how to change the depth of field of an image in Photoshop CS3. Learn two methods for creating depth of field effects with Photoshop. The first is very simple and more well known. For the second, Colin Smith experiments with the Lens Blur Filter. This technique will add believable depth of field to you images. Create dreamy backgrounds while keeping your main subject crisply in focus in Photoshop. Change depth of field in Photoshop CS3.

News: Make a Battery Out of Money

Hunkin's Experiments offers over 200 science experiments freely available in comic strip form. The experiments are organized in 18 different categories, covering a wide range from simple trickery to more technical experiments. The author, Tim Hunkin, is a trained engineer turned cartoonist, and also responsible for TV series/site The Secret Life of Machines (worth a look).

How To: Set dry ice on fire

Kent Chemistry offers up some of the most exciting chemistry and general science experiments from their lab. Here Mr. Kent illustrates the process of creating fire with dry ice. How does freezing and flame mix? Watch now to see the amazing chemical reaction!

How to Act Like a Food Snob: Molecular Gastronomy Edition

I first heard the term molecular gastronomy while watching an episode of Bravo's Top Chef a few seasons back. Intrigued by the concept, I sought to find out more about this modern, deconstructed type of cookery. If you happen to be around foodies and the topic of molecular gastronomy comes up (which very likely will at some point) you'll want to have a few points to contribute and maybe even give them a run for their money.

Contest: Potassium Nitrate Crystals

Recreating one of Will's mad science experiments, I made some potassium nitrate crystals. This was definitely the most fun part of my DIY smoke mix. I can't win the contest, but I'm just putting it up here for fun, since I liked the pictures so much.

HowTo: Levitate Pencil Lead

The anonymous doctorate of science, Nurdrage, is back with another fascinating HowTo (previously featured, glow sticks). Dr. Lithium's latest video demonstrates how to practice diamagnetic levitation using common household pencil lead and magnets.

DIY Scientists Beware: When NOT to Use Household Chemicals for Your Projects

The only thing better than successfully pulling off a new experiment is doing it with household materials. You get to laugh in conceit as professional scientists everywhere spend all their grant money on the same project you just accomplished with some under-the-sink chemicals! However, there are times when DIY gets dangerous. Some household chemicals are not pure enough to use and some are just pure dangerous. Let's take a look at two problems I have encountered in the course of mad sciencing.

The Sweet Smell of Success: DIY Smoke Mix with Sugar and Potassium Nitrate

I finally got around to trying out another one of Will's mad science experiments and found out that this one was actually more satisfying (and less frustrating) than my slightly uncooperative jar jet. There's something very pleasing about making potassium nitrate at home in the kitchen and then watching the transformation from semitransparent liquid to spiky, frozen crystals. That was the best part for me, second only to igniting it with its sugar companion.