Nvidia unveils Turing architecture and GPUs with dedicated ray-tracing hardware | Circuit Breaker Parts

The real problem with mains voltages is that somewhere, some day, some bonehead will manage to fry himself – and the media will blame the maker movement for it. I’ve already seen far too many absolute beginners planning to wire up their home appliances to an Arduino as their first project…

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The 20% derating is not something that everyone just knows, its part of the NEC. A 12AWG cable is actually capable of handling 30 Amps, but not according to the NEC’s derating requirements for wire temperature rise limits.

When it comes to celebrating the arrival of 2019, Clark County’s got everything you can think of, plus a little…

This is an important enough point that I felt it deserved its own heading: High speed shooting isn’t just about sports photography; it’s about capturing the perfect moment, regardless of how fast the subject is moving. This is a point I’ve been making since I first tested a prototype of the Casio FH20 a couple of years ago: The difference between the perfect moment of blowing out the birthday candles and one that’s a near miss can be a small fraction of a second. When shooting candids of people chatting and interacting, facial expressions and mouth positions change in literally the blink of an eye. A camera that shoots at 7 frames per second vs. one that only manages 3 frames per second can mean the difference between dozens of "keepers" and just a few.

Step 1:  To find the voltage rating of the MOV, allow for 20% headroom to account for voltage swell and power-supply tolerances: 24 V dc × 1.2 = 28.8 V dc. Given that no varistors have a voltage rating of exactly 28.8 V, check the datasheets for specifications for 31-V dc MOVs.

This is called Level 1 charging, and assuming you already have basic electric service in your garage, it’s the cheapest way to go. Unfortunately, it’s also the slowest. Depending on the vehicle and its battery capacity, it can take anywhere from eight to nearly 24 hours to bring its power cells up to a full charge.

I haven’t seen you around the traps here before and you have put in a good effort so welcome aboard.

It’s what this high technology allows that’s so exciting: real-time, phase-detect autofocus while firing off up to seven 14-megapixel frames per second in the A33, and ten 16-megapixel images per second in the A55. Few other large-sensor cameras offer frame rates this fast. DSLRs rivalling the A33′s speed are available for a little over $1,500, while only professional cameras that cost around $5,000 can match the speed of the A55 — and they’re still not capable of real-time autofocus between shots like the new Sony Alpha SLT cameras. Real-time phase-detect autofocus is also constantly available in Movie mode, something no current SLR can achieve.

I understand it’s only about 20hz, which is why it gives you that interesting jiggly feeling instead of a good Wack like mains power at 50/60 Hz does. When I was still a young buck in my early 20’s I worked in a mid-sized company and one of my duties was to maintain our POTS lines; my boss who might have been a sadist would often have me remap the phone lines mid day while the lines were in use and insist that I was not to busy any lines out. I can only amagine my coworkers delight at the inventive array of profanity that would come out of the wire closet when the reception switchboard would light up during these sessions. Sti got my lines man’s handset stashed somewhere…lol

There are people that play with high voltage stuff like Tesla coils, induction heaters etc. Now those know enough to respect high voltage.

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.