|
|
Post by Wolf Hawkfield no1 NZ poster on Feb 28, 2017 22:58:09 GMT -5
Surely someone should see the obvious problem with this. Surely........ GOD WILLING.........someone out there thinks this will end up with evil corporations / rich billionaire maniacs dropping moon rocks on the Earth and cause chaos for us all. You must exist, prophet of prophetic doom and what not...  I. Wish. I. Was. Kidding.  But. Then. I. Kinda. Don't.  Even if this whole SpaceX turns out to be a total burst it shall be fondly remembered simply due to this and hilarity that came after it. |
|
Cranjis McBasketball
Crow T. Robot
Knew what the hell that thing was supposed to be
Peace Love and Nothing But
Posts: 42,455
|
Post by Cranjis McBasketball on Mar 1, 2017 19:12:16 GMT -5
Challenger blew up because no one could say with 100% certainty the O-Rings would fail. They knew they could, but couldn't say they would. Hi, I've designed too many bridges/culverts in my time. I'll never say "with 100% certainty that bridge won't fail". Engineering doesn't work in 100% terms. There's always a chance for failure, and there are always multiple reasons why something could fail even if it's built and maintained correctly. Too many variables. That's why those arguments about NASA "not being 100% sure" drive me bonkers. You can't even say "I'm 100% sure the Sun will rise tomorrow". I could list a half dozen reasons it might not. Are they likely? No. But they could happen.
Then add in the million or so odd parts on a rocket and figure each one has a 99.99% chance of working properly... that's real chances of failure adding up. And that's what is very frustrating. Every time I see a failure on my structures (or any bridge/culvert) I normally know within a couple minutes of investigating why it happened. It's always "something that could in theory have been prevented". But one of the million or so variables was unaccounted for or was applied incorrectly. That's where my old mentor would step in and say "Your biggest error is believing you can eliminate error." Right, but the issue Challenger had dealt solely with O Rings and freezing temperatures. They knew they could fail when exposed to those temperatures but since no one could say they would, they didn't scrub the flight. In the investigation it was proved how easy they fail using a glass of water. It was a bad cultural practice. |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Mar 1, 2017 22:27:22 GMT -5
People wanna explore space but don't want fatalities.
Its either accept the risks or just let the robots do all the work.
Hasn't NASA sent probes to show where parts of the lunar modules are still standing?
|
|
