toplitzin posted:

Safer than a potato to the head.

Luneshot posted:

In case you'd like a visualization of the number of satellites in orbit, try Stuff In Space.

And remember, that's only large, catalogued objects like rocket stages or defunct satellites. Even a pea-sized piece of debris is capable of crippling a satellite when it impacts at 17,000 miles per hour- or more, if you're going opposite directions.

ekuNNN posted:

https://va.media.tumblr.com/tumblr_qi6duzgWZ61r0uzl6.mp4

Chocobo posted:

Holy poo poo, I hope that's not gasoline.

Collateral Damage posted:

Those are rifling marks in the copper driving bands near the base of the shell, which means this shell was fired. Which likely means the fuze is armed.

... I'd choose a better place to sit. Further away. Much further away.

Collateral Damage posted:

Those are rifling marks in the copper driving bands near the base of the shell, which means this shell was fired. Which likely means the fuze is armed.

... I'd choose a better place to sit. Further away. Much further away.

Collateral Damage posted:

Those are rifling marks in the copper driving bands near the base of the shell, which means this shell was fired. Which likely means the fuze is armed.

... I'd choose a better place to sit. Further away. Much further away.

SpaceCadetBob posted:

Gotta generate those likes and subscribes.

Eschatos posted:

How the hell would a shell that's been fired look that pristine otherwise?

gently caress SNEEP posted:

Yeah! drat those World War II influencers

Eschatos posted:

How the hell would a shell that's been fired look that pristine otherwise?

BitBasher posted:

To be fair though, there shouldn't be many counter (retrograde) rotating objects in space. There's a reason that almost everything is launched with the spin of the earth.

ekuNNN posted:

https://va.media.tumblr.com/tumblr_qi6duzgWZ61r0uzl6.mp4

Collateral Damage posted:

Those are rifling marks in the copper driving bands near the base of the shell, which means this shell was fired. Which likely means the fuze is armed.

... I'd choose a better place to sit. Further away. Much further away.

coldpudding posted:

large shells come with the driving bands pre rifled to reduce wear on the gun, big heavy rear end shells like that would quickly strip out the barrel if you used plain driving bands and had it cut in the grooves as you fired it.

Dirk the Average posted:

the footing being pipes that could easily roll...

CommieGIR posted:

Not in any info I can find. The driving band was copper or something and those are very much rifling marks from the barrel. Also makes little sense as the whole point of the band is to help seal the combustion section to propel the round better.

coldpudding posted:

large shells come with the driving bands pre rifled to reduce wear on the gun, big heavy rear end shells like that would quickly strip out the barrel if you used plain driving bands and had it cut in the grooves as you fired it.

Jobbo_Fett posted:

According to my manual on American Explosive Ordnance, on AP rounds


"The body is of high-quality alloy steel, carefully forged and heat-treated, since it is the part which does the actual penetration. Between the forward bourrelet and the rotating band or rear bourrelet, the diameter of the body is slightly reduced in order to provide a general clearance from the bore of the gun. The bourrelet is the bearing surface of the projectile and rides the lands of the rifle. This bearing surface is usually about one-sixth caliber in width, and its surface is generally ground to a fine finish to reduce friction and minimize wear on the lands of the gun. With the major caliber projectiles, it has become standard practice to provide a rear bourrelet or bourrelets in addition to the forward bourrelet. Rear bourrelet or bourrelets will be just before and behind the rotating band, providing better support in the gun and during the moment of ejection at the muzzle.

The rotating band has three primary functions: to seal the bore, to position and center the rear end of the projectile, and to rotate the projectile. A secondary function is to hold the projectile in place during loading and elevating for firing. The rotating band is made of commercially pure copper, or of cupro-nickel alloy containing 2.5% nickel, or in some cases a gilding metal consisting of 90% copper, 10% zinc. As a general rule, rotating bands are about one-third caliber in width."

Tubgoat posted:

While not substantially better, those pipes are more 'X's like the one he's putting up, they're bound together in the middle so stacked side by side are not super likely to roll, though the possibility of them slipping unnerves me almost as bad as everything else in this vid.

coldpudding posted:

large shells come with the driving bands pre rifled to reduce wear on the gun, big heavy rear end shells like that would quickly strip out the barrel if you used plain driving bands and had it cut in the grooves as you fired it.

Cartoon Man posted:

https://i.imgur.com/zzgCHF2.gifv

Pissed Ape Sexist posted:

To the breach via this process


E: quite beaten due to phone image posting >

Platystemon posted:

Just ram some more bags of powder in there to make Reagan’s dick hard. What’s the worst that could happen?

Cthulu Carl posted:

Unless you're the British at Jutland, in which case, go ahead and leave those doors all open, keep some spare charges near the turret, preferably out of their casings so they leak a bit of gunpowder and cordite in a little cartoony trail down to the magazines, and store about 50% more shells and propellant than your magazines are really designed for.

Eschatos posted:

How the hell would a shell that's been fired look that pristine otherwise?

Bismuth posted:

Pissed Ape Sexist posted:

lifting these smooth bois with extremely soft copper/nickel rings

Collateral Damage posted:

Those are rifling marks in the copper driving bands near the base of the shell, which means this shell was fired. Which likely means the fuze is armed.

... I'd choose a better place to sit. Further away. Much further away.

quote:

Using an unexploded 16 inch (406 millimeter) HC Mark 13 1,900 pound (862 kg) battleship naval shell for a resting place, Private First Class Raymond L. Hubert (October 17, 1924 - May 17, 1988) of Detroit, Michigan, attached to the 2nd Marine Division, 8th Marine Regiment, shakes sand from his boondockers. 8th Marines succeeded in reaching the sea in the vicinity of Tanapag Harbor at 1300 Hours on July 4. The regiment went into reserve the next day. A Browning Automatic Rifleman ("BAR Man"), Hubert was washing his feet in the surf when Staff Sergeant Andrew B. Knight (November 8, 1916 - March 25, 1959) of Washington, District of Columbia, asked Marines to pose for photos. Knight was a former Washington Post photographer. Hubert was putting his shoes on when the photo was taken; Knight asked him to "do something" so he sat on the dud shell. Hubert sat on the shell knowing full well it was armed and could explode any time. A buddy handed Hubert his M1 Garand rifle for the photo. This photo was circulated nationally during late July - early August 1944, appearing in the Washington Post, Bakersfield Californian and other newspapers. Hubert was a tool and die maker for the auto industry after the war. Knight, whose first wife was popular Big Band singer Evelyn Knight, returned to photography at the Washington Post and died of an esophageal hemorrhage at age 42 and is buried in Arlington National Cemetery. This photo later was the basis for a mural at Camp Pendleton.

The Glumslinger posted:

https://twitter.com/russbites/status/1316547894716047360

The Bloop posted:

It's made out of the indestructible black box stuff

That's why the explosion couldn't get out