Nvidia unveils Turing architecture and GPUs with dedicated ray-tracing hardware | 25 Amp Circuit Breaker

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If you enjoy people photography and delight in taking photos revealing real character and emotion, get yourself a Sony A33 and a large memory card, set the camera to high-speed continuous mode, and let fly. You’ll be amazed at how much more intimate and impactful your photos become.

Full-time autofocus. There are several advantages to the use of a translucent mirror in place of a traditional single-lens reflex mirror mechanism. The Sony Alpha A33 uses the design to allow it to simultaneously provide a live view feed with full-time phase detection autofocus. Most of the light is transmitted to the image sensor, while a smaller portion is delivered to the phase detection AF sensor, where it can be used to perform focus adjustments — even during live view, high-speed shooting, and movie recording.

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If you use 24V for 120W, you only need 5 amps. That’s not much. A good mosfet shouldn’t even get warm at 5A, and you don’t need very fat wires.

I buy Crydom SSRs from Digikey. I pay the $40-$50 bucks, I use big assed heat sinks, and I sleep like a baby.

This is true in a certain temperature range, I think between 70 and 90% of their nominal power. And in spite of that there are so many lamps with halogen bulbs, which are fitted with dimmer circuits. And you know why? Because the bulbs are very cheap, so nobody cares And they are often used as heating elements: in a professional reflow oven (3000,- euro class) and in laser printers. But in the end I think for the heated print bed you do NOT want a radiative heat source, it complicates the things

Now that’s something … And for other commenters: of course exposed mains voltage is dangerous, lethal even. But why would it need to be exposed? It could be made like Davic’s hack, or in countless other ways that are safe. Hide heating element under thermal mass, use secure connectors and proper grounding.

For a TRIAC I bend the middle pin forward 0.1″ – 0.2″, this is often done commercially and you can even buy them pre-bent.

Oversizing switching gear is good to some point but instead of relay withstanding surges I would prefer breaker that would protect everything.

It’s neither a sports car nor a hot hatch — it’s just a tall hatchback masquerading as a crossover. It handles a bit better than most commuter appliances, due to the 258 pound battery mounted low in the chassis. Imagine strapping me, Keanu-under-the-bus-in-Speed style, to the undercarriage of a car. That would let the car hug the road a bit more (and seriously wound your favorite bearded auto writer, so let’s keep this hypothetical).

All EVs come with a means to be connected to the power grid. Technically speaking, the charging station that converts AC house current into DC electricity is built into the vehicle. Most models include a basic 110-volt charging unit that plugs into a standard electric outlet via a conventional three-prong plug.