Common Ideas Search Results

How To: Spot a Liar Through Text Messages

While text messaging has become one of the most frequent ways we communicate with our friends, the missing body language, tone of voice, and eye contact can make it difficult to tell when someone is being dishonest. That said, it's not impossible. There are a number of subtle hints you can train yourself to recognize that will to help you detect written lies hiding in your SMS and iMessages. Here's what you should look out for.

How To: Clever Chemistry-Based Cures to Common Kitchen Conundrums

You probably already know that cooking involves a ton of chemistry. Bread rises because of the reaction between the flour and leavener, and the delicious crust on your steak is formed by the Maillard reaction. Understanding the chemistry going on behind the scenes is one of the best ways to improve the quality of your food—it's much easier to fix a problem when you know what's causing it.

How To: Introduction to Modern Cryptography

Cryptography is the science of keeping secrets, or more specifically, the science of disguising them. As a point of fact, cryptography has progressed quite a bit farther and now encompasses file and message integrity, sender authentication, and pseudo-random number generators.

How To: Make HUGE Soap Bubbles

Learning to make giant bubbles for this video has been the most fun I've had with a project in a long time. It's addicting to try to get them to grow bigger and bigger than the ones before. Since filming this video, my skill has improved tremendously and the bubbles you're about to see, though spectacularly big, are dwarfed by what I've made since. Everyone loves to watch. This is definitely one project that will draw a crowd!

How To: Make Your Own Homemade Glow Sticks

Glow sticks, a popular favor at parties and outdoor events, and a must-have on Halloween, can be traced back to the United States Navy in the mid-1960s. The military desired improved visibility during night operations, and glow sticks, with their small-size portability and lack of batteries, were a perfect tactical solution.

How To: Make Sticky or Stubborn Wooden Drawers Slide More Smoothly

When I was moving into my current apartment, I had to store some of my things in my ex-roommate's garage for over a month while I was getting settled. One of those things was my dresser. Upon moving it into my new place, I realized something was horribly, horribly wrong—none of the drawers seemed to fit quite right anymore (if they fit at all). The combination of the differences in temperature and humidity in the garage caused them to swell and change shape. Several months later, they fit bet...

How To: Make Your Nexus 7's Brightness Auto Adjust to Your Preferred Levels in Different Environments

When it comes to our smartphones and tablets, we're always on the lookout for ways to beat the oh so common rapid battery depletion problem that affects practically every mobile device. We'll do anything and everything to keep our battery life at an optimum, from turning off certain features (Wi-Fi and Bluetooth) to removing widgets and applications that use an exorbitant amount of CPU. One of the most popular and efficient ways of saving battery is to lower the screen brightness. Usually, we...

How To: Download and Change Your PlayStation 3's Wallpaper Without Using Your Computer

The PlayStation 3 is a sweet gaming system, and even though Blu-ray discs didn't really live up to all the hype and there is still no HBO GO app available, I love my PS3. One of the coolest things about it is that you can customize it to look however you want. One of the most common ways to do this is by changing the wallpaper, but most people use their computers to transfer wallpaper images over.

How To: Survive and Thrive in the Victorian Era

I don't know how many of you had this experience in your youth, but when I was a kid, I used to actively think about what would happen if I suddenly woke up in a fantasy land, or were to pass through a portal into another space and time. I knew it wouldn't really happen, but when you're a kid, these can be important issues to you. So I slept with my glasses on every night, just in case. Photo from George Pal's The Time Machine.

How To: Break into Almost Any Gun Safe with Straws, Paper Clips, Coat Hangers, and Even Children!

At the recent DefCon conference in Las Vegas, researchers opened many of the top commercially available gun safes with simple tools like a straw or a paper clip, and in one case, just by shaking it a bit. The investigation began after the researchers, Toby Bluzmanis, Marc Tobias and Matt Fiddler, learned that certain Stack-On safes, issued to some law enforcement officials to secure their firearms at home, could be opened simply by jiggling the doorknob.

How To: TAP Card Dissolved! How to Use Acetone to Transfer an RFID Tag to Your Phone

RFID cards are becoming a fairly common way to purchase goods, but they're already widely used to pay fares on buses, trains, subways, and trolleys across various cities. TAP cards are quick and reliable, but it can be a real pain to remember to bring them with you, especially if you weren't planning on using public transportation that day. Luckily, an intrepid tinkerer at Adafruit has managed to find a way to embed an RFID card into her phone, something you're far less likely to leave at home.