Make: Kit Reviews

Iced coffee is refreshing and delicious, but I’ve never been able to make it as well as I’d like. As it turns out, I was doing it wrong. Rather than prepare it with a traditional hot brew method, I should have been cold brewing it. This reduces acidity and produces a concentrated flavor that stands […]

Beverages: beverages, coffee, cold brewing, iced coffee

You don’t have to depend on commercial growers or expensive powders to get your spirulina fix. With this kit, you can have it fresh and alive, anytime. I made a few modifications to help mine grow faster and prevent clogging, like replacing the intake line with rubber tubing and swapping the bubble wand for a […]

Food: food, spirulina, superfood

Who’d believe a sawdust log in a plastic bag could turn into a magical mushroom forest before your eyes! My first harvest was bounteous and the shiitakes delectable, but careful attention to growing conditions was required to yield multiple crops of mushrooms rather than mold. If you get 3–5 harvests, the kit is a bargain; […]

Food: food, mushroom farm, mushroom growing, Shiitake

These Digital Dominos work just like regular dominos knocking each other down, only virtually. Each domino-sized PCB has a button that triggers an LED to blink (which corresponds to the domino “falling”). An IR sensor on one end and an IR LED on the other allow each domino to trigger any adjacent domino to blink, and so on. […]

Kit Party: dominoes, fun, party

A few rungs up the ladder toward high power is Estes’ Big Daddy, a chunky, 3″- diameter model. While designed for D and E solid rocket motors, it can easily handle AeroTech’s 24mm F motors. It’s not much more difficult to build than the Astra, but bear in mind that an E motor has up to […]

Rockets: rocket-powered, Rockets

I’ve been living car-free for 12 years. When I first saw Xtracycle’s cargo bike conversion kit, I was impressed by the broad utility of the design; it can be used to haul cargo and also passengers. I decided to build the ultimate people-and-stuff hauler so I could pick up friends who don’t bike and we could […]

Wheels: bicycles, conversion, Wheels

If you’ve ever wanted to hurl spears to bring down a woolly mammoth, then these two kits from Thunderbird Atlatl are the way to go. The Nanticoke and Kanakadea kits are both high quality and simple to build, so with a little time and effort you can make a very nice-looking atlatl suitable for serious […]

Siege & Ballistics: atlatl, ballistics, siege, spears

See what happens when someone asks you questions or when you laugh or get surprised. Everyone responds differently. See if you can turn the LED on with your mind. Try it on your friends or adversaries — it’s a great way to get to know someone! We’ve even included a few extra resistors, so you […]

Science: galvanic skin response, lie detector, Science

Thomas Edison purportedly said that he didn’t fail 700 times in trying to make the incandescent light, he succeeded in proving 700 ways not to do it. Now it can be your turn. This fun science kit is designed to excite and engage experimenters of all ages in re-creating the development of the first light […]

Science: lightbulb, Science, Thomas Edison

Making holograms became faster and easier a few years ago when Litiholo introduced its Instant Hologram film. Like old Polaroids, these film plates require no developing after exposure, which means, in about an hour, you can make your own transmission hologram of anything that will sit still next to the plate. The kit also includes […]

Science: holograms, instant, Science