Date: 2018-08-09 04:01 am (UTC)
conuly: (Default)
From: [personal profile] conuly
As I understand it, although it is extremely unlikely, elevators are actually slightly more likely to rapidly accelerate upwards than to dramatically fall anyway, for the same reason that drawbridges are more likely to slam closed than to slam open.

Date: 2018-08-09 04:38 am (UTC)
conuly: (Default)
From: [personal profile] conuly
...oh, I meant castle drawbridges. I don't quite know if bridge drawbridges operate the same way? I should look that up.

But castle drawbridges are counterbalanced so their natural, neutral state is "up", for obvious reasons, and elevator counterbalancing works about the same way, I'm told. If the safety features were to catastrophically fail - which they wouldn't*! - then the elevator would go up.

* They really wouldn't. People are so scared of elevators crashing that multiple redundancies is the name of the game. Eight ropes, every one of which is capable of holding up the entire elevator and cargo alone, plus safety brakes. The guy who popularized elevators ran regular stunts where he'd be in an elevator in a scaffold and all the ropes would be laboriously sawn through, and then the public could see the elevator didn't move a notch despite all the ropes being broken. Which they wouldn't ever be, because there are eight of them.

Date: 2018-08-14 06:36 pm (UTC)
jesse_the_k: iPod nestles in hollowed-out print book (Alt format reader)
From: [personal profile] jesse_the_k
Absolutely true -- and I wish that the terrors of insecure voting were the worst of it.

We depend on computers working perfectly in so many areas of our lives.

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