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Dec 1, 2021 20:19
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bet that engine right next to your head is awesome
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Dec 1, 2021 20:27
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LifeSunDeath posted:bet that engine right next to your head is awesome WHAT!?
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Dec 1, 2021 20:31
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This time he'll catch that roadrunner for sure
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Dec 1, 2021 20:42
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another weird old device featured in the documentary of old weird poo poo, gizmo https://www.youtube.com/watch?v=f0l01o2-X3A&t=2819s
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Dec 1, 2021 20:52
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https://va.media.tumblr.com/tumblr_r3e9a755V11qigfjt.mp4 https://va.media.tumblr.com/tumblr_r3frwfjQsq1r0uzl6.mp4
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Dec 1, 2021 21:05
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How does a snake even get out there? Hitching a ride on a boat? It's gotta be confused as hell
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Dec 1, 2021 21:07
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Phanatic posted:you should probably try to get all your new gee-whiz high-tech working as separate systems *before* you integrate them all into one big platform. That right there reminded me of my time working on the Hanford Nuclear reservation in Washington State. More specifically, the Waste Treatment and Immobilization Plant. It's been under construction since 2002 or so and is (was?) the world's most expensive construction project. It sat at $20 Billion when I worked on over a decade ago, but it's been rebaselined a few times since. It was initially bid for ~$4B lol and just a few years construction time. I still remember the initial slogan: "Glass in 08!" I think the low activity stream is supposed to start operating in 2023 but I am not holding my breath. Anyways, it's a perfect example of putting multiple processes/techniques together that have never been tested/tried at scale before and I can't wait to see it blow up when/if it ever starts operating. The high-level waste stream in particular has some pre-treatment chemical processes that have only been tested at lab scale, not production. The melters and melt feed chutes are extremely vulnerable to clogging. Those melters are supposed to operate continuously for a couple of years before getting chucked out the back. Legacy nuclear waste sucks and is really hard to deal with. I've seen multiple small-scale pilot projects that just didn't pan out. How this thing got selected as feasible and reasonable - I will never know. the design radiation numbers the HLW facility were loving insane. 300 kRad zones with specially hardened cameras behind inches of lead window in building zones that get sealed after construction and never entered again by humans TotalLossBrain fucked around with this message at 21:18 on Dec 1, 2021 |
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Dec 1, 2021 21:16
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And here's the argument against those laws requiring that you slow down to ~20mph when passing a pulled-over emergency vehicle.
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Dec 1, 2021 21:21
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`Nemesis posted:the 2021 failure rate of emals is about 0.5%, so it's a hell of a lot closer to proper reliability than previously. steam is around 0.02%, I’d be interested in seeing a source for either figure. Last I saw EMALS was averaging 180 cycles between critical failures, and the design requirement was something over 4000 cycles.
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Dec 1, 2021 21:24
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LifeSunDeath posted:bet that engine right next to your head is awesome How else are you going to get those sweet lead fumes from that gasoline?
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Dec 1, 2021 21:29
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Phanatic posted:I’d be interested in seeing a source for either figure. Last I saw EMALS was averaging 180 cycles between critical failures, and the design requirement was something over 4000 cycles. 1/180 = 0.55%
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Dec 1, 2021 21:29
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Wikipedia also says that a carrier with four steam catapults will historically have at least one operational 99.5% of the time. Which is not the same as a failure rate of 0.5% per launch, but it gives you an idea of the ballpark.
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Dec 1, 2021 21:40
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Phanatic posted:I’d be interested in seeing a source for either figure. Last I saw EMALS was averaging 180 cycles between critical failures, and the design requirement was something over 4000 cycles. I'm already beaten to this, but you're basically just repeating his numbers exactly. Both of them.
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Dec 2, 2021 00:27
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Hokkaido Anxiety posted:1/180 = 0.55% '0.55% chance of failure per cycle" is not the same thing as "you can expect one failure every 180 cycles." Something that has a 99.45% chance of working each time has only a 37% chance of working 180 times in a row. It has a 50% chance of failing by the time it makes it to 126 cycles. To have a 99% chance of going 180 cycles without a failure, it would need a .0066 chance of failure.
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Dec 2, 2021 00:29
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Shut up nerd
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Dec 2, 2021 00:49
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Phanatic posted:'0.55% chance of failure per cycle" is not the same thing as "you can expect one failure every 180 cycles." Something that has a 99.45% chance of working each time has only a 37% chance of working 180 times in a row. It has a 50% chance of failing by the time it makes it to 126 cycles. To have a 99% chance of going 180 cycles without a failure, it would need a .0066 chance of failure. .55% fail chance is exactly the same as "you can expect one failure every 180 cycles". Your second sentence, "what is the chance that this particular thing, will work 180 times in a row" is a totally different question. Consider a coin flip; 50% chance of heads, or roughly, after enough samples, one head every 2 flips. Totally different question from "how many coin flips do I need to have 99% confidence of having at least one heads result". This sounds like a nerd dickslap fight (and it is), but stuff like Mean Time to Failure relies on these simple statistics.
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Dec 2, 2021 00:59
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https://i.imgur.com/e2R4FWC.mp4
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Dec 2, 2021 01:40
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Dec 2, 2021 01:51
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Thread title proves itself once again
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Dec 2, 2021 01:53
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Amazon delivery drones are working slightly better than I expected.
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Dec 2, 2021 02:01
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Pigsfeet on Rye posted:Thread title proves itself once again Well, what else can you do if you need to change a light bulb
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Dec 2, 2021 02:04
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Just freeze the pool. Or better yet pour in some quickcrete.
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Dec 2, 2021 02:14
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I initially didn't realise this was a series, so just looked at that first one wondering why the hell anyone would do that. Not in a million years could I have guessed where it was going to go.
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Dec 2, 2021 02:52
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Doing this irl as i scroll down https://www.youtube.com/watch?v=U6MlaIe1ljs
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Dec 2, 2021 03:14
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thread titles should be able to embed images.
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Dec 2, 2021 03:48
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They didn't tie off so they wouldn't get dragged under if it flips. Good thinking. Also the single hardhat to protect the sweet ponytail.
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Dec 2, 2021 04:18
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Welcome to our "ool" Notice that there is no "P"* in it Please keep it that way * or scissor lifts.
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Dec 2, 2021 04:53
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I'm not really bothered by the lift on the pool. Those lifts are bottom heavy af and its in the center of mats that are designed to be difficult to flip over. How else are you going to get up to the ceiling above the pool to do maintenance? They just need to move slow and make sure no jackasses do something to severely disturb the water in the pool.
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Dec 2, 2021 04:58
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The Wonder Weapon posted:And here's the argument against those laws requiring that you slow down to ~20mph when passing a pulled-over emergency vehicle. classic, total classic!
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Dec 2, 2021 05:01
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Mr. Nice! posted:I'm not really bothered by the lift on the pool. Those lifts are bottom heavy af and its in the center of mats that are designed to be difficult to flip over. How else are you going to get up to the ceiling above the pool to do maintenance? They just need to move slow and make sure no jackasses do something to severely disturb the water in the pool.
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Dec 2, 2021 05:11
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Mr. Nice! posted:I'm not really bothered by the lift on the pool. Those lifts are bottom heavy af and its in the center of mats that are designed to be difficult to flip over. How else are you going to get up to the ceiling above the pool to do maintenance? They just need to move slow and make sure no jackasses do something to severely disturb the water in the pool. instead of doing moron poo poo like that you drain the pool
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Dec 2, 2021 05:32
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Muscle Wizard posted:instead of doing moron poo poo like that you drain the pool Or lower the roof. Or spend the extra 50 bucks at the rental place to get a boom lift instead of a scissor lift. Mr. Nice! posted:I'm not really bothered by the lift on the pool. Those lifts are bottom heavy af and its in the center of mats that are designed to be difficult to flip over. How else are you going to get up to the ceiling above the pool to do maintenance? They just need to move slow and make sure no jackasses do something to severely disturb the water in the pool. C-C-C-CANNONBALL!
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Dec 2, 2021 05:40
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DeeplyConcerned posted:classic, total classic! ty I'm still back on page 850 and was wondering if anyone all the way up here on 1200 would remember
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Dec 2, 2021 05:44
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I was on top of something similar to that on a much smaller scale. Had to change some light bulbs over a large aquarium tank, we built a raft out of a couple of pontoon floats and put just one layer of scaffolding on it. Used a rope on either end to pull it across while changing the bulbs. Absolutely impressed by that, scissor lifts scare the poo poo out of me.
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Dec 2, 2021 05:52
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Mr. Nice! posted:I'm not really bothered by the lift on the pool. Those lifts are bottom heavy af and its in the center of mats that are designed to be difficult to flip over. How else are you going to get up to the ceiling above the pool to do maintenance? They just need to move slow and make sure no jackasses do something to severely disturb the water in the pool. Tiny (spoiler alert he’s huge) is gonna do a cannonball to gently caress with the new guy.
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Dec 2, 2021 05:54
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How did they move it to the middle of the pool? I don't see any ropes, did they just raise it and pull themselves along the rafters?
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Dec 2, 2021 06:17
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Trolling motor
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Dec 2, 2021 06:28
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Azhais posted:Trolling motor "Hey BigHead, I wrote a book titled How To Avoid Ur Mom! Heyoo!" - a motor, trolling. My scissor lift pool boat didn't move guys.
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Dec 2, 2021 07:15
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| # ? Jun 4, 2024 19:01 |
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Marcade posted:The only thing worse than pencil lead to a spacecraft is a cat. A little nibble here, a little nibble there, and you're flying backwards. Yet, they used a pencil to demonstrate this.
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Dec 2, 2021 07:59
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