OT Kinetic Energy Weapons

Hi,

anyone up for some Newtonian mechanics ?

formatting link

500 years before Newton.

...... Phil

Reply to
Phil Allison
Loading thread data ...

The kick isn't from steel flying forward, it's from launching the big heavy wooden arrow. "500 years before Newton" indeed.

--
John Larkin      Highland Technology, Inc 

The best designs are necessarily accidental.
 Click to see the full signature
Reply to
jlarkin

It's amusing in kung-fu movies when a skinny guy kicks some bad guy, and the baddie flies 50 feet through the air and crashes through a wall or something.

Reply to
John Larkin

I guess the skinny guy kicks with more momentum.

Reply to
John S

When the gunpowder ignites and transfers momentum p into the bullet it also transfers momentum -p into the gun but the projectile itself isn't where the energy came from.

Reply to
bitrex

Movies have their own physics. Nobody runs out of bullets until the script says they do, either.

Reply to
bitrex

Interesting video. Thanks, Phil.

Reply to
John S

Pretty sure I've seen low-budget CGI of bullets flying through the air with the cartridge still attached. Well I guess artists can't be expected to be firearms experts too.

Reply to
bitrex

Well, those low-budget movies can't afford a consultant and they are not educated in the technical end. Or they just don't care.

Reply to
John S

At 25 yards longbows don't get the job done against plate mail, apart from lucky shots:

Reply to
bitrex

Mythbusters did a show where they debunked people getting shot and physically blown all over the place.

Reply to
John Larkin

The kickback includes the gasses ejected. That's makes more kick momentum than the bullet carries away.

But the bad guy still flies across the corral, and the hero stands straight.

Reply to
John Larkin

When still out of hand-to-hand range but when the lines had closed too close for arrows the Romans would toss a few of these buggers at the enemy:

Like lawn darts but a lot meaner.

Reply to
bitrex

Movies, especially action movies, are for entertainment, not realism. That applies to just about all aspects of them - the guns in Rambo are no more realistic than those in Star Wars.

There are a few films where the martial arts sequences are realistic (Ip Man is an example). But most attribute far more "magic" to it - real martial arts fights are rarely as exciting as film versions.

(A well-trained skinny guy can certainly beat a much bigger and stronger, but untrained opponent with a good kick. But they'd stagger back a few feet, or collapse where they stand, not fly though the air.)

Reply to
David Brown

bitrex wrote in news:FHJSH.115819$ snipped-for-privacy@fx46.iad:

Well before that, Medal of Honor recipient Audie Murphy made war pictures that were somewhat realistic considering the film making tech at the time. "The Red Badge of Courage" was made in 1951.

Reply to
DecadentLinuxUserNumeroUno

A bunch of backwards junk, explains why a modern WW2 era infantry platoon c ould wipe out an entire medieval army. Around 4:50 there's a demonstration of a 30-cal rifle round, not the carbin e cartridge, penetrating a full 12 inches oak tree trunk and then passing through a steel water bucket on the other side- simulating a human target. Then consider this weapon has an effective range of 300 meters, point of-ai m is point of impact, together with very high rate of fire, and you have un precedented lethality.

Lots of demonstrations here:

formatting link
formatting link

You get tapped by any of this stuff and it's over.

Reply to
Fred Bloggs

A guy my father knew in basic training in late 1944 was injured by the recoil from a mortar four weeks into basic training; broken shin and foot, they sent him home and by the time he healed up the war was over.

Reply to
bitrex

They'd need to carry a lot of ammunition to do it, and the medieval army would probably surround them, dig ditches and throw up walls the the riflemen couldn't shoot through, then bombard them with trenchbuts until they were either flattened or had starved to death.

Enough Zulus with spears managed to kill off quite a few English troops armed with tolerably modern rifles. Modern armies don't show up one platoon at a time.

Even medieval armies had worked out how to deal with a variety of weapons, and a range of tactical situations.

--
Bill Sloman, Sydney
Reply to
Bill Sloman

They often show lone fighters taking on 3, 4, 5, 7, 15, 22 opponents hand-to-hand and winning...

Applies for small-scale combat also. In the movies the magnificent 7 can defend a saloon against 25 armed dudes, in real life the magnificent 7 get destroyed with the attackers suffering minimal casualties no matter how fast the seven are with a six-shooter.

Reply to
bitrex

It was discovered in Portland that when you shoot these asswipes in the head they just fall down and die:

Reply to
bitrex

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.