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I dipped my hard hat in acetone and all I got was removed from the site because I contaminated the entire batch of acetone at the chemical plant with dissolved polystyrene.
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Feb 14, 2020 23:44
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Powered Descent posted:From helmets.org, which is mostly about bicycle helmets but I'm sure a lot of this applies to hard hats as well: Hmm, cool. I was mildly worried about the bike helmet I left at my parents' house. I only use it 3-6 times/year, but it's probably 12 years old at this point. It's stored in their basement, so it's out of the sun. I also didn't use it much when I had it cause I was lazy. My current helmet is like 4 years old and has had more use then the old one every did. I was going to eventually cycle it to my parents' house, but maybe it'll be actually less safe than the old one based on how much exposure it's had.
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Feb 14, 2020 23:56
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Feb 15, 2020 00:16
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5 minutes before this picture: "I can exceed the rated load, I know what I'm doing"
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Feb 15, 2020 00:29
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The hands-on-hips "welps" pose must've gone on for at least 10 minutes after that one.
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Feb 15, 2020 00:48
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SerthVarnee posted:From what i've gathered in this thread and the geology fetish thread, you are going to want to put that helmet somewhere dirty and then get it muddied and scraped up ASAP if you ever want people to acknowledge any single sentence coming out of your mouth. Shouldnt take too long to ding it up real nice.
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Feb 15, 2020 01:31
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That is someone who just discovered that the net capacity decreases over the side.
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Feb 15, 2020 02:35
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chitoryu12 posted:That is someone who just discovered that the net capacity decreases over the side. "But I wasn't using a net!"
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Feb 15, 2020 03:11
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Nyet capacity
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Feb 15, 2020 04:08
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Y'all still going on about hardhats while I'm over here groaning audibly over this motherfucker standing in what is OBVIOUSLY a FUNCTIONING LAB with BARE loving FEET. Literally shaking rn.
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Feb 15, 2020 04:38
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DrHammond posted:Literally shaking rn. Handled organomercury in the last few months?
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Feb 15, 2020 04:44
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GotLag posted:Handled organomercury in the last few months? Well I certainly didn't step in any 
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Feb 15, 2020 04:49
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I know it's probably not, but that lab floor looks like carpet. Still not as bad as carpet in the bathroom.
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Feb 15, 2020 06:56
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I went to high school in loving Texas. People had flip flops on in chemistry a few times.
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Feb 15, 2020 08:07
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FogHelmut posted:I know it's probably not, but that lab floor looks like carpet. Still not as bad as carpet in the bathroom. Nah, it's educational-grade linoleum, mottled so the inevitable spills and burns and scuffs don't show up so readily.
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Feb 15, 2020 08:38
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Lab carpet full of mercury that squishes when you walk around. Or moves like those weird grass fields over lakes.
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Feb 15, 2020 11:10
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Who was it who got the Outside Context Problem avatar?
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Feb 15, 2020 12:20
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Memento posted:Who was it who got the Outside Context Problem avatar? https://forums.somethingawful.com/showthread.php?threadid=3904642&perpage=40&pagenumber=101#post502019159
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Feb 15, 2020 12:44
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I kinda think it would work better with just a ? outside the triangle instead of a black starburst.
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Feb 15, 2020 12:48
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https://i.imgur.com/FZGttze.mp4
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Feb 15, 2020 21:38
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Scientific Testing of Safety Equipment, very OSHA  
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Feb 15, 2020 22:19
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NoneMoreNegative posted:Scientific Testing of Safety Equipment, very OSHA Personification of the thread title
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Feb 15, 2020 22:20
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Crane Solomon
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Feb 15, 2020 22:26
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NoneMoreNegative posted:Scientific Testing of Safety Equipment, very OSHA Please tell me that was held to the side at least.
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Feb 15, 2020 23:01
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https://i.imgur.com/tTHyaKE.mp4
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Feb 15, 2020 23:05
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Would that have cut the rope, the wing, or some combination of both?
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Feb 15, 2020 23:08
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What even is the thing the guy is way up high on? Like a balloon but he's tethered to the ground?
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Feb 15, 2020 23:10
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tangy yet delightful posted:What even is the thing the guy is way up high on? Like a balloon but he's tethered to the ground? Yeah I also am trying to figure this out. I think you're right and it's either a balloon or parachute/kite tethered to the ground. If that's the case, he's basically a human barrage balloon and his cable doesn't appear to be flagged in any way and as a pilot that is really pissing me off. Extremely dangerous. NoneMoreNegative posted:Would that have cut the rope, the wing, or some combination of both? Depends on what's on the ends of the rope. If it's a free-hanging rope on a parachutist then it would probably wrap around the wing/prop/empennage and drag the parachutist along while causing some damage and throwing the plane out of control. If it's a balloon on one end and an anchor on the other, it would probably slice off a chunk of the plane's airframe.
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Feb 15, 2020 23:16
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NoneMoreNegative posted:Scientific Testing of Safety Equipment, very OSHA How did you get video from 7000 BCE?
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Feb 15, 2020 23:18
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tangy yet delightful posted:What even is the thing the guy is way up high on? Like a balloon but he's tethered to the ground? Original source, I think - he's paragliding? https://www.youtube.com/watch?v=WI3Nq-fjkXI edit: switched video for a longer version uvar fucked around with this message at 23:42 on Feb 15, 2020 |
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Feb 15, 2020 23:30
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I like how the guy looks like he immediately sets about dropping the rope before the pilot comes round for another go 
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Feb 15, 2020 23:36
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Hmm. Still not enough information to exactly determine who is the rear end in a top hat. If that's a regular paragliding spot with a fixed towline installation and there's a NOTAM about it and the pilot didn't check ahead of the flight, it's on the pilot. You need to make yourself aware of all potential hazards in your intended area of flight. There are a couple of parachuting zones around where I fly, and when they're active there is an announcement about it on the local frequency every couple of minutes. If the guy set up a towing system in a random spot and didn't file a NOTAM to warn aircraft, he's the rear end in a top hat because that kind of poo poo kills people and is the reason we have rules about airspace in the first place.
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Feb 15, 2020 23:40
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I found a better video (and edited post above). And here's the official Slutrapport! It's from Sweden. https://www.havkom.se/en/investigat...ypen-ozone-mojo quote:An aircraft of the model SAAB MFI 15 took off from Sundbro, Uppsala, for a VFR flight to Johannisberg, Västerås. Shortly thereafter began winching of a paraglider from Härkeberga, located along the aircraft's route.
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Feb 15, 2020 23:45
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Does that mean someone didn't update the database?
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Feb 16, 2020 00:00
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I find it hard to believe that no serious consequences could have resulted from a propeller plane hitting a line mid-air, but have no idea if the line is strong enough that getting entangled in the propeller could cause the paraglider to get reeled to the propeller. It'd probably just snap immediately with no effect, but I want to believe.
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Feb 16, 2020 00:11
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uvar posted:
That seems like something you really should have on a map. It's probably okay to lose the 'church with spire' and 'Post office' icons if it means you can have one for 'Warning, barrage balloons!'
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Feb 16, 2020 00:12
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here in the US we have the NOTAM system for pilots. Basically the guy or company paragliding request a notice be sent out through the system where they will be and at what altitudes and when. The pilot who is planning his flight looks at notices for the places hes flying and sees the notice and plans around it ideally.
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Feb 16, 2020 00:21
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Bad news: the paraglider warning will be hidden among forty‐four warnings about cranes.
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Feb 16, 2020 00:27
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Platystemon posted:Bad news: the paraglider warning will be hidden among forty‐four warnings about cranes. Solution: hide the paraglider among as many cranes 
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Feb 16, 2020 00:45
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Shut up Meg posted:That seems like something you really should have on a map. Ideally it's both marked on the chart and filed as a Notice to Airmen (NOTAM) or equivalent. This chart shows two parachute activity areas:  So when flying through that area you should be keeping your eye out for parachutists and aircraft dropping them. However, the area may not be active at all times, and of course it's possible that people are out parachuting somewhere else for a special event. Whether you are operating a parachuting business or plan to do it on your own, for safety you should also file a NOTAM about your specific activity, even if it's just a vague schedule. This one gives the location and the time: daily from 11am to 5pm local. quote:!RIU 04/051 New Jerusalem, Tracy, CA (K1Q4) Airspace parachute jumping exercise WI an area defined as 1 nautical mile radius of MOD275019 (2.5 nautical miles northwest 1Q4) surface-13,000 feet daily 1700-0100 Apr 11, 2019 1700Z to Apr 11, 2020 0100Z It sounds like in the near-wire-strike case, the area was not marked on any charts (either because it was irregular or because it was overlooked) and the operators failed to file a NOTAM as well. Bad news.
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Feb 16, 2020 02:05
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