Why would it not matter? Everything in safety culture is making the risks acceptable. Why does ETOPS exist when we could just disallow planes with twin-engine aircraft entirely?
True, but mercury does not dissolve the iron of the lock. For that, the sulfuric acid is necessary.
If grog would contain both mercury and acid, they would not mix, but there will be a mercury layer at the bottom and the acid solution would stay at the top. So the mercury could dissolve the bottom of the mug, while pouring some acid from the top could dissolve the iron lock.
The fact that iron is among the few metals which are not dissolved by mercury had been widely used in the past, when the use of mercury was less restricted. For example, ignitrons and mercury arc rectifiers, which were used in high power converters before the invention of thyristors, contained a pool of liquid mercury, so for them iron vessels were preferred instead of fragile glass vessels, like those used in smaller vacuum tubes.
In the Roman and Greek Antiquity, the most important use of mercury was for the dissolution of gold and silver, which was used for their purification and in the fabrication of jewelry.
Of course ridership dropped during COVID, but it very quickly recovered and is now well over double the ridership before the COVID dip. Also note that prior to COVID, the system was still under construction and not even the 1 Line was fully operational yet. It could take you from UW to the Airport, and that's about it, the complete 1 Line route to Northgate did not open until October 2021, Lynnwood to downtown extension did not open until 2024, and Line 2 from Redmond to downtown did not open until earlier this year.
So, it's hard to make a direct comparison of fare compliance before and after the "COVID times" however you define the time period, as the are very different transit systems that now serve a different geographical area and population. But fare compliance has recovered from 56% during the peak of COVID to 63% in 2025, and 2026 numbers are not out yet.
Fred Dibnah was a treasure. If you enjoyed 5 minutes of Big Ben, here's an hour of his day job in heavy industrial steeplejacking - "The Ups and Downs of Chimneys" https://www.youtube.com/watch?v=KK2wF_-yoEg
I just got to tour Big Ben in July when I visited London. The mechanism is an amazing piece of technology and the precision achieved at the time of development was crazy. Also being able to stand next to the bell as it rang was truly an awesome experience.
Fred Dibnah's steeplejacking videos are awe-inspiring and a little bit horrifying. Fred seems like he was quite a character. I definitely recommend watching any videos he was involved with.
Not just government employees, employees of government contractors who held or applied for security clearances. I’ve never worked for the government but the CCP got my SF-86. My employer’s infosec group told us they believe that the same group was also responsible for the Mariott data breach in the same timeframe and that it was believed to be part of an effort by the CCP to establish a complete dossier on each individual in the entire military-industrial complex. The best advice they could offer was to disable all social media accounts and lock down our credit reports. :shrug:
The older ones usually make you wait for a minute or two before the door is unlocked. I have one in my current apartment that doesn’t do that, but I’ve tried it a couple times and it does spill some water when you open it.
With top-loaders, you don’t even have to pause, the lid is always open; and the water stays inside, obviously.
With both my 2006 Whirlpool front loader (trash) and 2022 LG front loader (excellent), the duration from when you press the "pause" button to when the agitator stops and the door unlocks is approximately one second. No water is spilled.
How do you do that without the water spilling out? Or do you mean waiting for it to drain, opening it, and then refilling (along with more detergent, having wasted the previous dose)?
The water level in a front loading washing machine is lower than the door seal. The seal only contains splashing water from the agitation. You hit the "pause" button, it stops agitating and unlocks the door, you throw your skidmarks in the washer, you close the door and press "start".
Since gravity continues to act in a downward direction, yes, the water stays pooled at the bottom of the drum and does not teleport upwards and outwards.
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