How to Create the Ultimate Exercise Playlist


Figure out what to plug intoyour playlist for optimal exercising.

Studies show that the rhythmic speed of your music influences your athletic performance. Here’s how to use that information to create the ultimate playlist for your workout.

While it’s no surprise that fast-paced music is a good and popular exercise companion, a study published last year discovered a direct correlation between fast-paced music and athletic performance…

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See New Sights With The Digital View-Master


The original 3-D viewing device given new life.

The View-Master, a classic American toy since 1939, uses stereoscopy to present 3D images. Hacker Consortium user tuttle thought that he could do the same thing with modern technology, and so replaced the internal components of one with tiny digital screens…

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Gigantic Homemade Marble Track Sculpture Shouldn’t Be So Entertaining


What is it about watching marbles roll down elaborate tracks that’s so entertaining? Are we so simple? Apparently yes! Just look at this huge contraption made out of over 4,000 popsicle sticks!

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Make Microwave Popcorn Using a Simple Brown Paper Bag

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Corn is good popped food.
If you’ve been buying microwave popcorn because of the convenience—or a belief that the bag has special popcorn enhancing powers—you’ll want to check out this incredibly inexpensive way to make microwave popcorn at a sixth the cost of commercial bags.The writers at Squawkfox, a frugality-centered blog, were shocked when they did the math on how much they were paying for the convenience of pre-bagged popcorn. When they crunched the numbers they realized they were paying over $3.50 a pound for popcorn versus $0.50 for a raw pound of popcorn. What do you get for the extra three bucks? A whole lot of fancy packaging and a whole lot of questionable ingredients….

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Rock ’em Sock ’em Robots Reborn as Motion-Controlled Design Challenge

How does one breathe new life into a retro-licious toy like Rock ’em Sock ’em Robots? In this day and age, it’s a motion control setup from Zachery Shivers and Anne Flinchbaugh that they created for the TI Design Challenge.The motion controls arrive thanks to a pair of accelerometer-sporting Chronos watches, one per wrist, that interact with some custom circuitry under the ring (not standard back in the 1970s). Physical punches translate into quick jabs inside the ring, with the goal still being “knock your opponent’s head skyward for the win.”

The campy video gets good after the brief “introductions”…

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Automate and Control Your Air Conditioner with Your Home Network

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Automate and Control your Coolness

We love home automation projects, and if there’s one thing we’d like to control during the hot summer, it’s the A/C. Hacker Erik shows us how to control an air conditioner with just an ethernet cable, a relay board, and some PHP.

As long as you know how to solder, this hack is remarkably easy…

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DIY Kitty Crack: Ultra-Potent Catnip Extract

Gimmee More!!!

In this Instructable, talbotron22 shows how to make “Kitty Crack,” an ultra-potent catnip extract containing nepetalactone, catnip’s active ingredient. One pound of catnip yielded 143mg of nepetalactone.

A note about safety. Yes, it is safe to use this extract on cats. I have looked into it, and there are a number of studies (very interesting in their own right) using pure nepetalactone on cats in experiments trying to figure out why it causes them to go bonkers. The upshot is that it’s pretty safe….