As a method of testing battery output, it seems a bit elaborate, but racing AAs down coiled copper tubes looks like a lot of fun. Mr. Michal:
Duracell, Varta or Energizer, Which Will Be the Best? In this video you'll see two races between aa batteries. Infinite loop and DRAG RACE. How to make the simplest electromagnetic train in the world ? It's very easy. You only need these three parts. 1. copper wire raw 2. battery ( AAA, AA or C ) 3. and two neodymium magnets ( it must be larger in diameter than battery )
I figure as a benchmark, you'd need to immobilize the tube for comparisons to be fair? Say, if you wanted to create a whole YouTube channel dedicated exclusively to well-controlled battery races.
Thor is in the house.
I am a bicycle snob. I'm at a point where beauty and function generally win out over comfort or financial considerations. This is where non-cyclists start to get really confused. Deep down, riding a bike is about sacrifice, and that's not a popular starting point for most people. There's usually a faster way to get […]
Vegemite has enough salt to be conductive, and is viscous enough to draw distinct traces with on suitable medium (say, toast that has been cooked such that most of the water has evaporated, making it a good insulator), as Luke Weston has ably demonstrated.
In recent years, natural language processing technology and language translation technology have advanced greatly. The trouble is, language translation software typically comes in the form of apps. And while your mileage may vary on their usefulness, they share one thing in common: a serious drain on the battery for your smartphone, the very thing you’ll […]
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As cool as your smartphone is, it can’t do everything. When a job requires a little elbow grease, a multitool is a great thing to have around – and might just save your life in the right situation. Here’s a roundup of some of the latest multitool designs, which have come a long way since […]