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How I got my laser eye injury

funraniumlabs.com

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Re: How I got my laser eye injury

#281
post #123

Earlier quoted context omitted.

Google as a company manufactures hardware, it makes sense to have a machine shop for prototypes.

Google was founded by burners who want to take cool shit to the desert.

They are in the rich people’s glamping camp. They haven’t lifted a finger on the playa, ever.

Re: How I got my laser eye injury

#282
post #261
post #258

Earlier quoted context omitted.

Correct, it takes about twice as long to boil a kettle in the US. But the US is the anomaly here. Most countries use 220-240V mains like Britain [1]. [1] https://en.wikipedia.org/wiki/Mains_electricity_by_country#T...

Technically, the US does as well. You have 240 V at the panel, but you only run half for each common circuit.

Technically basically all buildings in Germany (residential and commercial) run on 400V 3 phase power. But access to it via sockets is only common in residential homes via sockets in a garage. It gets more common with car charging although they rather use 3 x 230V as far as I am aware of.

Re: How I got my laser eye injury

#283
post #257

Earlier quoted context omitted.

This seemed like a wild claim (2500 watts for a tea kettle!? As much as a microwave oven in full blast?) so I looked it up. Wow.

british household AC is wild, it's like they've got a full-power american range plug for every outlet

I remember watching a Technology Connections video where he was looking at space heaters rated for small/medium/large rooms and pointing out that the medium/large room heaters were both 1500kW (iirc) as it’s the maximum continuous draw from a US socket.

Over here in NZ we get pretty similar ratings on the same style heaters, but the large room ones are 2400kW because we can get that from any socket.

Also with my hobby - sewing. A lot of people in North America talk about forgetting they left the iron on, but I switch it on and off every time because it heats up in 30 seconds - less if it’s been on recently.

Re: How I got my laser eye injury

#284

Earlier quoted context omitted.

Do you see a bright spot when aiming the laser at drywall? If the answer is yes, then laser light is being reflected into your eye. Hope this helps!

> Do you see a bright spot when aiming the laser at drywall? It was red for a second but now what appears to be a black hole is consuming everything.

Congratulations, you've made your eyes laser-proof then! From now on, you can safely look at high-powered lasers.

Re: How I got my laser eye injury

#285

Earlier quoted context omitted.

If you can get them to stay still long enough, maybe.

PSA: Sharks die quickly if you get them still. Their heartbeat is connected to the swimming motion.

Some sharks have to swim to move water over their gills. Not even close to all of them and it's not due to their heartbeat being connected to their swimming.

https://www.britannica.com/story/do-sharks-really-die-if-the...

Re: How I got my laser eye injury

#287
post #247

Earlier quoted context omitted.

‹twitches in metric prefix› 2.5 kilowatts. It's called 2.5 kilowatts. ‹calms down› 2.5 kilowatts is how much power a tea kettle in the UK draws. It's an insane amount of power to pump into a 60 micron point.

This seemed like a wild claim (2500 watts for a tea kettle!? As much as a microwave oven in full blast?) so I looked it up. Wow.

It's actually only americans who unaccountably make do with these horribly underpowered kettles. The rest of the world wants their tea and they want it now...

Re: How I got my laser eye injury

#288
post #274
post #247

Earlier quoted context omitted.

‹twitches in metric prefix› 2.5 kilowatts. It's called 2.5 kilowatts. ‹calms down› 2.5 kilowatts is how much power a tea kettle in the UK draws. It's an insane amount of power to pump into a 60 micron point.

60 micrometres. "micron" is a deprecated irregular word that is unlike every other scaling of the metre.

Correct me if I'm wrong "micron" IS metric (decimal based system) but it's NOT an SI unit?

Re: How I got my laser eye injury

#289
post #247

Earlier quoted context omitted.

‹twitches in metric prefix› 2.5 kilowatts. It's called 2.5 kilowatts. ‹calms down› 2.5 kilowatts is how much power a tea kettle in the UK draws. It's an insane amount of power to pump into a 60 micron point.

This seemed like a wild claim (2500 watts for a tea kettle!? As much as a microwave oven in full blast?) so I looked it up. Wow.

Higher, that would be quite an extraordinary microwave (probably too high) - 800W to 1kW at maximum typically.

(I use mine mostly on the 90W or 180W settings, for defrosting.)

Re: How I got my laser eye injury

#290
post #258

Earlier quoted context omitted.

Correct, it takes about twice as long to boil a kettle in the US. But the US is the anomaly here. Most countries use 220-240V mains like Britain [1]. [1] https://en.wikipedia.org/wiki/Mains_electricity_by_country#T...

British outlets are individually fused so they're typically rated for more current

Fused for 13A running off 32A ring main.

Continental Europe uses 16A radial circuits so the current rating is higher there.

EDIT: Of course, you can't run two kettles on one radial, but you can on one ring.

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