Batmancer

I wonder what ever happened to that mantle that got shot up by a nuclear explosion.

https://lemmy.world/post/45641298

I wonder what ever happened to that mantle that got shot up by a nuclear explosion. - Lemmy.World

I read somewhere it must’ve turned molten from the atmosphere, but l wonder if like little droplets of metal fell down to earth or if it was just vaporized.

5:58pmWeb
Show threadMark with a Z5h ago
My guess is that it just vaporized and then turned into dust.
Show threadmarcos5h ago
Liquid things going in high speed through the atmosphere get atomized. So, yeah, it just became dust and went down in some rain.
Show threadTrackinDaKraken5h ago
It reached orbit and is now actively seeking and destroying Musk’s Starlink satellites.
Show threadlauha4h ago
Man can dream
Show threadAeronMelon4h ago
Do your best, manhole cover.
Show threadteft4h ago
Doubtful. That thing was traveling three times faster than the fastest meteorite we’ve recorded entering the atmosphere. It probably vaporized almost as soon as it took off since 900 kilos of steel is nothing, ablatively speaking, at those speeds in sea level air pressure.
Show threadin_my_honest_opinion5h ago

Vaporized.

https://en.wikipedia.org/wiki/Operation_Plumbbob#Missing_steel_bore_cap

https://www.theregister.com/2015/07/16/america_soviets_space_race/

Operation Plumbbob - Wikipedia

Show threadthemeatbridge5h ago
Anything that wasn’t vaporized was likely launched out into space at speeds exceeding escape velocity for Earth’s gravitational field by a factor of 6. So if there was anything left after the explosion and wind friction, it’s out in space, probably moving towards the sun.
Show threadstarik5h ago
The high speed camera was intended to be used to calculate the speed of the cap. It was going so fast it was only captured in 1 frame, which is only enough information to put a lower limit on the speed.
Show threadrenegadespork2h ago
How do you calculate speed at all with only one frame?
Show threadlycalopex1h ago
It was a lower bound. It had to have been traveling fast enough to only be captured in one frame.
Show threadAlwaysnownevernotme1h ago

Distance between not moving and gone compiled against recording timestamp and detonation.

It’s, not very accurate. But you do get a lower bound.

Show threadKeshara1h ago

You dont, hence why only a lower limit could be established with a single frame capture.

Basically like saying “if we only got 1 frame, then it must be going faster than x mph/kph”

Show threadrenegadespork2h ago
Wouldn’t the air resistance be insane at those speeds? If it didn’t just slow it down significantly, the friction would add even more heat to it.
Show threadthemeatbridge33m ago
Yes, that’s why most people believe it vaporized completely.
Show threadNOT_RICK5h ago
Hypothetically, even if the heat of the blast didn’t vaporize it, I don’t see how something that size moving at 150,000 mph wouldn’t ablate from intense friction with the atmosphere before reaching space.
Show threadstarik5h ago

However, the detonated yield turned out to be 50,000 times greater than anticipated…

Just four and a half orders of magnitude off. Oops.

Show threadexpatriado4h ago
all we are is dust in the wind
Show threadtyrant3h ago
When Pascal-B was detonated, the blast went straight up the test shaft, launching the cap into the atmosphere. The plate was never found. In a conversation with Bill Ogle, Brownlee estimated its velocity as “six times the escape velocity from the Earth”—approximately 67.2 km/s (150,000 mph).[10] Scientists believe compression heating caused the cap to vaporize as it sped through the atmosphere
Show threadtensorpudding2h ago
I’m sure it was vaporized but I still think we should get MythBusters to test it with modern camera and tracking equipment.