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.
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Between all of our apps, streaming devices, Bluetooth speakers, and energy-sucking decorations, paying for utilities each month can be…brutal. In fact, the average household spends roughly $70 a month on the water bill alone. That number might not seem terribly significant, but when you add it up, that’s $840 a year — a pretty significant […]