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Stir Up Some Nylon
by Mike Walker On A Roll: The author pulls a thread of nylon from a glass, where it's formed at the interface of two chemicals. Mike Walker In 1938 the E.I. DuPont de Nemours Company, known at the...
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The Robotic Giraffe
by JP Greenwood JP Greenwood How It WorksCost: $15,000Time: 10 MonthsPractical | | | | |PopcornA 12-horsepower, propane-fueled engine drives three generators, which charge three 450-amp batteries,...
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Build a Backyard Theater
by Nik Schulz/L-Dopa.com You could build a no-frills model with a basic enclosure for around $500. We added a few extra parts to make ours yard-friendly. Click the photo for a detailed view. Nik...
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Dry Ice Cream
by Mike Walker Mike Walker View Photo GalleryMake CO2 Ice CreamCost: $150Time: 15 MinutesSafe | | | | |RiskyFor an illustrated photo how-to, launch the gallery. As liquid Evaporates, it gets cold....
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We Want Your Photos
how2photos_485.jpg If you're anything like us, you were the type of kid who took apart dad's new radio just to see what was inside. That kind of curiosity never dies, which is why How 2.0, PopSci's...
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Playing With Poison
by Mike Walker In this simple electric motor, current running through the wire into 60 pounds of mercury causes the wire to revolve around a magnet. Mike Walker There are great things to come in the...
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Scare Tactics
by Dave Prochnow Dave Prochnow The Bubbling Cauldron Want a real witches´ brew? Mix soap-bubble solution with dry ice, or use liquid nitrogen for bubbles that release fog when they pop. In the...
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Making Salt the Hard Way
by Mike Walker Mike Walker View Photo GallerySee the video at the bottom of the page for a behind-the-scenes look at PopSci's fiery photo shoot. For excerpts from the shoot, click hereCreating a Salt...
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How Geeks Get Down
by John B. Carnett Everyone who actually worked on the floor and isn't a professional model, raise your hand. John B. Carnett Cost: $5,000Time: 1 WeekEasy | | | | |HardA few semesters ago, a group of...
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The Touchless iPod Remote
by Luis Bruno Luis Bruno When you´re tearing downhill on your snowboard, it´s a little distracting to take off your glove and dig out your iPod just to, say, hit pause. Instead, build this simple...
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GRAY MATTER A Tall Glass of Juice
by Mike Walker LIQUID LIGHTING: A chain of five homemade gravity-cell batteries powers a string of LEDs. Mike Walker Build a BatteryCost: $20Time: 3 HoursSafe | | | | |CrazyPour copper sulfate (the...
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Spark of Destruction
by Mike Walker A scaled-up re-creation of the tips of a modern platinum spark plug, using 1/10-ounce platinum coins for electrodes Mike Walker Make Your Own SparksCost: $270Time: 20 MinutesSafe | | |...
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Gray Matter
by Jeff Sciortino Jeff Sciortino Periodic Table And be sure to check out Theodore Gray's one-of-a-kind periodic table at periodictable.com. Each month, Popular Science features one of Theodore Gray's...
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Mod Your PC for Triple Boot: a PC for All Seasons
Lucky you; you just received a brand new shiny PC for your [fill in the occasion: birthday, anniversary, graduation, holiday]. Unfortunately, your new rig almost certainly came preinstalled with...
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Website of the Month: CollabFinder
CollabFinder Courtesy CollabFinder Even do-it-yourself work often requires the resources of more than one person. CollabFinder.com connects DIYers with developers, designers and other creative types...
View ArticleHurl Wiffle Balls At 50 MPH--With A Leaf Blower
Update: We made a video to demonstrate how to build a wiffle ball pitcher; watch it here. At this year’s Labor Day picnic, don’t yawn through another game of Wiffle ball.
View ArticleThis Reader Revamped Our Wiffle Ball Cannon
Popular Science reader Dave Herbert had a blast building and playing with the DIY Wiffle ball cannon from our September issue. But the retired Marine also added his own…
View ArticleThree Projects That Make LEGO Toys Into High-Tech Tools
Hand a kid some LEGOs, and you’ll get anything from a sword to a starship. The same adaptability that makes the bricks amazing playthings also endears them to makers, who…
View ArticleTurn A Shoe Box Into A Phone Projector [Video]
Don’t watch that YouTube clip on a tiny screen—project it onto the wall instead! The picture may not be movie-theater quality, but it improves if the phone is very bright…
View ArticleUse A 3-D Printer To Turn Your Smartphone Into A 1000X Microscope
The Pacific Northwest National Laboratory has released printable files that will help turn your smartphone into a microscope of up to 1000X magnification. If you have…
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