search results matching tag: Momentum

» channel: nordic

go advanced with your query
Search took 0.000 seconds

    Videos (58)     Sift Talk (9)     Blogs (5)     Comments (427)   

Can a slingshot hit harder than handguns? The Shootout.

Chairman_woo says...

The slingshot does "hit harder" i.e. impart more momentum into the target and thus more likely to knock you down.
Intuitively this seems like it would therefore cause the most damage and for several 100 years this was the prevailing logic with muskets and cannonballs.

So much so in fact that when Charles Whitworth first introduced his rifle it was dismissed by the British army partly for having too small of a bullet. Whitworth used a smaller more stable round for its increased range and accuracy/stability (though there were also concerns about "muzzle fouling" and slower reload time).
It was believed at the time that the larger (slower) much less accurate bullets from the Enfield were more effective at actually injuring enemy soldiers, but history later demonstrated that speed and penetration can have just as much (if not more) effect on soft bodies than sheer mass and momentum.

Simply put, that large slingshot round would likely knock you to the floor in the same was as an MMA fighter landing a roundhouse square in your guts would. It might even penetrate the skin a bit and embed itself in you. What it won't do however is travel through your soft tissues at high velocity and create a large "temporary cavity" which is how most firearms do their real damage.

The 9mm etc. don't carry as much overall energy as the slingshot, but they do deliver it to a soft target much more effectively (that is to say lethally). A much more informative test would have been to fire them into ballistic clay, this would have highlighted the differences between speed, momentum and penetration much more clearly. The slingshot would leave a massive dint, the bullets would leave tunnels.

That said, the point they are making does stand to some extent. If you used that slingshot on someone that was trying to shoot you there is a good chance you'd knock them down (or at least stop them taking an aimed shot back for a few seconds). Hell you might even hospitalise them with a good shot!

It's not fair to say that the slingshot is a more "powerful" weapon but I think they did clearly demonstrate that it's a viable alternative under some circumstances. In fact for defending yourself in your own home etc. it might even be better!

Little/no risk of collateral damage (unless you miss really badly)
Very cheap
Would put most people on the floor with one good hit
No firearms licence or background checks needed
More difficult for a child to misuse (Most kids would lack the strength)
Enemy wouldn't expect it
Much less likely to kill
etc. etc.

Hell I'd get one myself if UK law wouldn't fk me over for using it.
It's illegal here to use a weapon specifically intended or kept for defense. i.e. if you grab a random object like a chair and beat up an intruder that's ok, if you have a baseball bat etc. by your bedside for expressly this purpose then it's not.
Handy then that one of my broken computer chairs happens to contain a loose 1ft long iron bar. Naturally I'd never even consider using such a thing violently, but who knows what might come to hand when faced with an intruder

(Seriously though, as broken furniture its a viable means of defence, if I kept it by my bedside as a "weapon" I'd be breaking the letter of the law by using it. Fucking stupid!)

Awkward Flight

Carly Rae Jepsen Throws Terrible First Pitch

grinter says...

I haven't seen the episode, but my impression is that people who "throw like a girl" tend to push the ball with their hand, rather than using their arm like a tether that redirects the ball's momentum.. almost pulling it forward....
..if that makes any sense.

lucky760 said:

Mythbusters recently did a scientific analysis on the difference in throwing posture between boys and girls.

Black Christians = Uncle Toms

MilkmanDan says...

I agree with the concept here, but I think he is overstating it a bit. Actively selling out your own people/family while slavery was actively occurring is rather worse than forgetting (or never learning) that your religion was used as a tenuous justification for slavery many many generations ago.

On the other hand, a more contemporary spinoff of this that lends further weight to the argument can be found in the widespread apprehension amongst whites back in the 60's and 70's that all or most of the African American population would convert to Islam. A lot of writings by prominent white people of that era show just how terrifying that prospect was for them, and many candidly justified that fear by saying that it would reduce or eliminate the level of control that whites had over the black population. Pretty disgusting stuff to read from a modern point of view.

Actually, I'm fairly surprised that wave petered out as quickly as it did. Malcolm X, Muhammad Ali, and others brought the trend of blacks converting to Islam into national attention; but it didn't gain as much traction as many whites of the time feared. It would be interesting to see a study into the whys of that -- my best (yet unfortunately rather stereotype-based) guess is that many single-parent or head-of-household African American mothers were reluctant to let their sons convert from their family's traditional Christian upbringing and suppressed or quashed a lot of the momentum of the movement in its early stages.

The future of cycling is here

bmacs27 says...

You understand the principle right? The flywheel is effectively a mechanical battery which stores your momentum through braking. In other words, it's analogous to an electrical assist. They both add weight. They both help you conserve momentum lost during braking.

eric3579 said:

? OK, but i'm not getting how this has anything to do with e-bike electrical assist. Are you saying people also say that it's the future of cycling?

Classic cars crashing on the Nurburgring set to funky music

CreamK says...

Adenauer Forst is one of the slowest corners on that track.It caughts you by surprise as it looks faster. The trick is to slow down a lot more than what you think, i see people going off in sims all the time there, you hang on to your dear life just a corner before that chicane and then think "that looks easy, i'll just carry over the speed and break for the second part.. oops, too late.." It comes off at at hill top too so your momentum is going to destroy any grip you have..

You wouldn't want to go off at Flugplatz or Kesselchen thou.. Not to mention at Tiergarten, that place scares me even on a sim..

Game of Thrones Season 3: Inside the Red Wedding

Jinx says...

I was glad to be rid of some characters. Too many characters have been introduced, not enough have been culled. Season 3 felt very slow and plodding purely because so much of each episode has to be taken up with flitting from one character to another. I wish the plot could stay in one place long enough to get some momentum rather than inching along as it stops in at every character spread accross its world. To be fair, some of GoTs best bits are the odd pairings that get thrown together, I just think that whenever they add a character thats going to get a little time to describe their trajectory the whole thing sort of gets diluted down.

Beast of the sky: A-10 Thunderbolt II mid-air refueling

MilkmanDan says...

@kulpims - Yes, the physics of it suggest that even shooting fairly heavy depleted uranium shells at very high velocities at a fairly high rate of fire can't really put much of a dent in the momentum of a *very* heavy plane moving at a pretty high velocity.

Still, the pilot at the time told me in person (and some research I've done since then also suggests it may be true) that angling the gun off of perfectly straight alignment was deemed necessary due to shear forces that would require fairly dramatic pilot correction when firing the weapon.

Definitely nothing like dramatically slowing the airspeed of the plane, but I still found it impressive that the recoil of the gun became a design challenge even in such a large aircraft.

Momentum and Portal - Sixty Symbols

Tire Hunts Spartan during Spartan Race - Charlotte NC 03.23.

chingalera says...

Didn't really look like it had enough momentum to do anything but bowl someone over a bit, never know though...Looked like it would have smarted.

Also.. Why aren't these exhausted participants asking at the top of the hill, "WHO ROLLED THAT SHIT!!

Runaway Crane - Slow Moving But Destructive

chingalera says...

All those actions may have slowed down that tonnage in motion but not once the momentum had reached a certain point. Once she got going, the combination of everything EXCEPT using the boom to stop it wouldn't have mattered. That driver saw his out with the low bridge and saved someone's home or business.

Luke's Change - Death Star Destruction Was an Inside Job

TheFreak says...

No mention at all of the doctoring of the video record of the Death Star Explosion.

Early video of the Death Star explosion showed no evidence of an explosive planar shock wave, or "Praxis Effect" emanating from the equator of the installation. This shock wave parralel to the equatorial trench is to be expected due to the rotational momentum of the massive artificial gravity devices employed by the installation at the equator. Yet no such Praxis shock wave is visible in the video created by the remote installation that first recorded the event.

Absence of the Praxis shock wave is only possible if the explosion occurred from several distributed points across the surface of the Installation, rather than from a single-point explosion at its center. The early video evidence is contrary to the results of the official investigation.

This early observation by skeptics becomes even more important due to the fact that this shock wave is 'clearly' visible in later released video. The video released following official investigation and engineering review of the incident. The official explanation that later came out in response to inquiries into this inconsistency are suspect. The panel of Imperial engineers claim that the effect was evident, though not apparent, and only became visible following restoration and enhancement of the video, as required for the investigation. This "enhancement", carried out prior to video re-release is suspicious, in and of itself, but the truely revealing factor is in the error made by those who would cover up the truth.

Inspection of the later video showing the Praxis shock wave shows a critical flaw: The angle of the planar shock wave is PERPENDICULAR to the equator of the Death Star. This is impossible and clearly reveals that the shock wave was later digitally added to the video as a cover-up!

You decide.

2013 Ferrari La Ferrari Promo

braschlosan says...

If you want to see another cool Hybrid look here
http://www.autoblog.com/2013/03/05/subaru-viziv-concept-geneva-2013/
The Subaru Viziv runs a diesel through a CVT to drive the front wheels and a separate electric setup to drive each rear wheel so Its still AWD with variable torque all over.

" By independently controlling the drive power applied to the left and right rear wheels, the rear drive system provides more torque to the outside rear wheel and less to the inside rear wheel when cornering to generate inner-directed yaw momentum on the vehicle and achieve extremely quick and smooth "on-the-rail cornering". Besides helping acceleration and all-terrain performance, this groundbreaking AWD system also uses drive power to help turn the vehicle. Along with its thrilling handling and cornering that responds faithfully to driver operations, it also offers outstanding handling stability that ensures a high level of secure feeling and confident drive."

BigDog, the four-legged robot, is now throwing cinder blocks

Crazy Impressive Breakdancing Kids

mikeydamonster says...

The heyllll you talkin' bout, can't flow together? The entire basis of "power moves" in breakdancing is being able to sustain rotational momentum while nearly seamlessly chaining them together. I would be of the opinion that is one form of flow.

Not trying to be a dick, but if you're really saying that nothing new has been invented in the past, I think you have to regain some perspective, and you're also missing a lot of nuance. 15 years ago people doing straight windmills would be somewhat impressive. It wasn't much more than five years ago that air tracks (0:38) became common. People were not doing that shit in the 90s. And certainly not doing it on just one elbow, while grabbing their other leg and sipping a cold Coke all at the same time.

People do moves, and then other people figure out ways to add a little something on top of those moves, and so on and so forth. I think there is definitely an artistic aspect to it, in that there's an exploration there of the limits of the human body, and dancers have taken things much further over time.

I think to some extent breakdancing has been played out, when it kind of resurged in the 2000s. It's also frequently taken out of its larger context of hip hop dance, where it's just one aspect of many different styles.

Anyway, yeah, I guess I'm kind of defensive about breakdancing.
/former breakdancer

LiquidDrift said:

I'm sure there is other dancing that has a more limited vocabulary, but breakdancing feels particularly limited in that many moves can't flow together...



Send this Article to a Friend



Separate multiple emails with a comma (,); limit 5 recipients






Your email has been sent successfully!

Manage this Video in Your Playlists

Beggar's Canyon