These were NiMh cells, and you can just about weld with them. A good cell can deliver as much as 30A and only drop down to 1V. You wouldn't be able to do that on regular use before the cell is destroyed, but they can really deliver current.
I dumped some AAs into my left hand once and was instantly burned as my wedding band made contact across the positive terminal and a nick in the insulator on the battery body. The gold in the wedding band is an excellent conductor of heat and electricity, and I was burned all the way around the ring in a matter of seconds. My wife thought that would be a great invention to cure a wandering eye, sort of like an invisible fence.
Yup, you and my husband. I bet if you see a foreign substance you stick your finger out and touch it and then sniff it to try to determine what it is. In some ways I will never understand the male gender! I'll never forget the time we went on a rock hunt out on a ranch and when we brought our treasures back to the grizzled old guy that ran the place - he would hold up each of our rocks to examine it, and on some of them he would lick it as part of his examination, Yeccch.....but the guy sure knew his rocks. He could tell you everything there was to know about each one.
Yes, so do I, Deejayh. Once you've done it a few hundred times, you can tell if the battery is weak, medium strength or brand news. When I was a kid my parents thought I was nuts for doing it. Later on, my kids thought I was nuts for doing it.
A double A battery will give your tongue a small tingle when new. No, my tongue isn't 4" wide/long. Apply your index finger to the negative terminal (flat end) of the battery and touch the other end (+) to your tongue. A bit of moisture on the end of your index finger will increase the effect. So, if your a bit too squeamish to try a 9V, give this smaller dose a try.
Our company requires us to tape the terminal ends of all batteries before placing them in the battery recycling bucket.
Earlier this year paralyzed IndyCar drive Sam Schmidt did the seemingly impossible -- opening the qualifying rounds at Indy by driving a modified Corvette C7 Stingray around the Indianapolis Motor Speedway.
Wearables are changing the way we see ourselves. With onboard sensors that have access to our bodies, we are starting to know our physical selves like never before, quantifying our activity, our heart rate, breathing, and even our muscle effort.
Last week, the bill for reforming chemical regulation, the TSCA Modernization Act of 2015, passed the House. If it or a similar bill becomes law, the effects on cost and availability of adhesives and plastics incorporating these substances are not yet clear.
This year, Design News is getting a head start on the Fourth of July celebration. In honor of our country and its legacy of engineering innovation -- in all of its forms -- we are taking you on an alphabetical tour through all 50 states to showcase interesting engineering breakthroughs and historically significant events.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.