There are many types of battery chemistries, and each one has its own different characteristics. So which one to choose? We’ll cover the basic features for each battery type in order to help you decide which one is right for you. Read more »


Have you seen Jimmy DiResta’s Jimmy Tips videos? I’m a DiResta fanboy, so I watch every video and show that he does, but also being something of a tips collector, I particularly love this series, which is now nine episodes long. You probably already know DiResta from his popular and... Read more »

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While looking for a way to strengthen cannon barrels, Bessemer discovered better ways of making steel. Read more »


Polyform released a new addition to their line of sculpting clays: Sculpey Medium Blend. Read on to find out what we thought. Read more »

board game settlers of catan box organizer

This board game box insert is an easy way to organize all the pieces while still using the original box. It's perfect for all Settlers of Catan fans. Read more »

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When I asked Bernie War how he liked living in Shanghai, the Miami native said he liked everything about it, except the air. He’s been there for three years. First, he started work on an open source air purifier. Then, he looked at building an air quality monitor. His most... Read more »

Photo by Sam Euston

What started as an idea to produce our own simple, fun, affordable electric vehicle has evolved into a DIY project easily assembled by nearly anyone. The Switch defines a new class of auto — a lightweight, high-capacity, versatile electric vehicle (EV) that requires minimal resources to construct, assemble, and drive. Read more »