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.
John Park used a 3D printer, some Sugru moldable glue, and a variety of Adafruit electronics components to build this nifty robot companion based on Pathfinder from the game Apex Legends. I also entered Sugru’s drawing for a free 3D printer.
Charles Platt’s growing series of electronics books are the best I’ve come across. He explains concepts very clearly, and his illustrations are excellent. His latest book in the series is called Easy Electronics. It covers voltage, resistance, capacitors, transistors, integrated circuits, and more. No tools are needed to complete the projects in this book.
You know how in movies where there’s a mad genius tech-wizard/hacker (often a precocious teen) who can make the most fantastical creations with seemingly no effort? It’s such a great fantasy with little analogue in the real world. Sam Battle, he of Look Mum No Computer strikes me as a character from one of those […]
There was already enough concern about the healthy state of our drinking water before COVID-19. And while there’s no evidence that the coronavirus has ever been detected in the water supply, the general sense of fear surrounding any type of contamination is obviously at a fever pitch everywhere. Contaminants like lead, chromium, arsenic, copper, mercury, […]
Allergies are brutal, affecting about 30 percent of all American adults. While many only saddle sufferers with mild irritations like coughing, sneezing, a runny nose or watering eyes, some symptoms can be even more intrusive and significantly more painful. Sinus pressure is one of those unholy side effects, causing a pain that can stretch from […]
“I probably use my chef’s knives more than any other tool in the kitchen.” – Bobby Flay, celebrity chef Cooking at home has taken on a whole new life in the wake of COVID-19, and even with restaurants slowly reopening across the US, there’s heavy reason to suspect that more of us preparing more meals […]