Samsung’s 2018 TVs now support FreeSync for smoother gaming | 25 Amp Circuit Breaker

If the car achieved its minimum 44 mpg and used 3.1 gallons, that means 136 miles were done on gasoline and 117 were EV miles.

AC is safer than DC. You can let go of two AC terminals but not DC as DC keeps your muscles clenched. AC doesn’t.

But at the same time, if one wants a high efficiency power supply, then the manufacturer typically have placed in a rectifier that is technically over specified for the job, as these devices are generally not that expensive, and are an easy way to cut down a few watts overall without adding any substantial extra cost.

UL rule of thumb for shock hazard: 1.5mm / 60mils distance between a hazardous live conductor and something touchable for single insulation level protection (double that for double insulation).

I was in sixth or seventh grade, playing with a transformer with a 540 V secondary, when I accidentally grabbed one cllp lead too many. The current was flowing from one hand to the other, and I could not let go. Eventually–I’m sure the subjective time was much greater than the actual time–I was able to use my legs to knock myself off of the lab stool onto the concrete floor. Hitting the floor felt so good!

We teach our employees never to trust anyone concerning lock-out tag-out. Everyone has their own personal lock, and most power sources can accommodate multiple locks. Fortunately you just enjoyed an unusual sensation,

I’ve been complaining for years about similar inabilities to do math with respect to diesel fuel. “Oh, but look at the high number I can calculate!” they all cry–as they pump their tanks with a fuel that’s 33% more expensive than gasoline.

The best defense is to make sure you buy from reputable sources, not from some backyard hardware store or eBay.

Let us never forget this Darwinian hero. http://www.dailymotion.com/video/xfyyii_man-electrocuted-on-the-train-india_news

All this stuff makes me think it might be time to get a Faraday cage installed around my heart. Or maybe a big shunt from shoulder to shoulder.

In my experience, the more people know about electricity, the more cautious they are. And the more they have to deal with dangerous voltages, the more cautious they are. With few exceptions, most Youtubers you see doing dangerous stuff online have no idea what they are doing. Speak to a decent electrician and you’ll see they work more safely than most engineers and thousand time safer than amateurs. We don’t really need electrical cowboys showing off how dangerous the stuff they do is.

15A is more like 1,500 times what’s required to kill you, depending on what part of your anatomy it finds to traverse.