Neat trick instantly turns happy songs into sad songs and vice versa

Here's a fun little musical experiment from The Gregory Brothers. They flipped major and minor keys in popular songs to transform previously happy songs into sad ones and turn old depressing sad songs into happy ones. It sends your brain in a tizzy when you hear the words of songs you recognize but see them in a whole… » 3/26/14 11:02pm 3/26/14 11:02pm

How To Pick a Lock Using Nothing But Hairpins

You can learn the basics of lock picking from a GIF, but for a more nuanced look at the techniques required to actually get a lock open without the key, check out NightHawkInLight's latest tutorial where he uses nothing but a pair of strategically bent hairpins in the process. » 3/05/14 1:20pm 3/05/14 1:20pm

A Key You Can Photograph Is A Key That Can Be Copied

If you take a picture of a car or house key, could you use that picture to get a copy made? Yes—quite trivially, actually. I have a folder on my laptop that is filled with photos people have taken of their keys and put onto the internet. Every few weeks, I take some idle time and associate one of those keys to an… » 2/13/14 4:20pm 2/13/14 4:20pm

An Emergency Lightning Cable That's No Bigger Than Your House Key

The makers of the ChargeCard—that wallet-friendly credit card-sized sync cable for smartphones—are back with a new product called the ChargeKey that's instead designed to hang out on your keychain. It's almost like a stripped down version of the ChargeCard that sheds most of the plastic so it can easily sidle up next… » 9/12/13 8:50am 9/12/13 8:50am

How to Harness Solar Energy to Make Your Own Post-Apocalyptic Keys

We all know the world's going to end at some point, and sure, maybe it's not entirely "likely" to happen anytime soon—but better safe than sorry. So assuming you've already been working diligently on your underground, radiation-proof bunker, what's going to happen when you need extra keys made with nary a (non-zombie)… » 8/26/13 2:40pm 8/26/13 2:40pm

Pistol Keys Were Once the Last Line of Defense For Prison Guards

Long before prison guards started carrying tasers, tear gas, and other non-lethal deterrents, they apparently relied on these cell door keys that also functioned as tiny one-shot pistols. They probably weren't lethal, but there's no doubt they packed enough of a punch to make an inmate very uncomfortable if they tried… » 8/22/13 5:22pm 8/22/13 5:22pm

The Key To Never Forgetting Your iPhone's Charging Cable

Key-shaped USB flash drives have guaranteed we never forget to bring our important files ever again. And taking the same approach, Bluelounge's Kii guarantees you always have an emergency iPhone or iPad charger on hand—as long as you remembered to lock your home and bring your keys. » 7/09/13 8:55am 7/09/13 8:55am

Are Smart Locks Secure, or Just Dumb?

Keys have been around for hundreds, if not, thousands of years. We've all used them. We generally understand how they work and how vulnerable they can be. Some are better than others. And now that the simplest of devices in the home are connecting to the cloud, it's time to figure out just how safe or smart these… » 6/05/13 2:17pm 6/05/13 2:17pm

Goji: Here's Your Semi-Perfect Camera-Equipped Smart Lock

Smart Locks are now a thing. Believe it or not. UniKey arguably kicked off the whole craze last year when they appeared on ABC's Shark Tank, then Lockitron got some buzz with its latest iteration (though it did first pop up in early 2011) and just last week August launched its smart lock. This week its a… » 6/04/13 7:00am 6/04/13 7:00am

Hilarious Car Key Hack Lets You Drive It Like You Stole It

If your daily commute has become mundane and boring, you can easily spice things up with this clever hack that makes it feel like you've just jacked someone's ride. All you need is an old screwdriver—the more worn it is the more convincing the effect will be—and a car key you're willing to hack to bits. » 4/30/13 10:58am 4/30/13 10:58am

Handcuff Key Cufflinks Would Get James Bond Out of Any Lock-Up

Seemingly targeted at dapper globe-trotting spies, or wealthy perpetrators of corporate crimes, these stylish Sparrow Uncuff Links feature a handcuff key secretly incorporated into their design. Except that it's not so secret. How long is it really going to take for super-villain henchmen or law enforcement to… » 11/15/12 11:00am 11/15/12 11:00am