Poison filled Hollow Points?

[bjl913]

I don't think the mercury moving inside the lead would have any effect other than destabilizing the bullet. I seem to remember some lesson in physics about running around on the inside of a bus, not effecting the forward motion of the bus.

Like if you crashed a water truck into a brick wall, I don't think the presence of the water would have any effect other than to add mass to the truck. I practically failed physics though, so don't take what I say too seriously.

Despite being a physics failure, I'm still positive that a plane could take off from a treadmill moving in the opposite direction. It boggles my mind when people think opposite on that little riddle.

haha its all good man!

When that bus your running around in hits a brick wall though, it may not have a huge effect on the bus, but your going to tend to stay in motion and punch right through the windshield and eat brick! (buss = bullet, you = mercury) haha

and if the water truck was half full, would the water slosh forward and push the truck further, not just because of the added mass of the watter, but the added shove of the water sloshing forward. Same thing with the merc in the bullet. if you left a little air space for it to "slosh" forward, it may help push through something. Maybe add the merc to the round, then put a small piece of paper or cloth over it to build some layers of "air space" then cap it /w lead?

I think we are both just taking shots in the dark with this one lol

[BigBear]

Despite being a physics failure, I'm still positive that a plane could take off from a treadmill moving in the opposite direction. It boggles my mind when people think opposite on that little riddle.

I can actually explain that one! With some modifications, yes a plane could take off from a runway. But a plane such as a C130 or other big bird can not. The aircraft creates lift with the speed of air under it's wings. When it is on a treadmill, there is no air speed. Yes, the treadmill will get it going fast enough to theoretically lift off, but there will be no air movement under the wings to provide lift....

Like jogging, when you are out on teh street jogging, you can feel the wind on your face. On a treadmill, not so much... how's that?! Passed Physics, but failed Calculus...

[Irving]

I can actually explain that one! With some modifications, yes a plane could take off from a runway. But a plane such as a C130 or other big bird can not. The aircraft creates lift with the speed of air under it's wings. When it is on a treadmill, there is no air speed. Yes, the treadmill will get it going fast enough to theoretically lift off, but there will be no air movement under the wings to provide lift....

Like jogging, when you are out on teh street jogging, you can feel the wind on your face. On a treadmill, not so much... how's that?! Passed Physics, but failed Calculus...

I completely disagree. The problem with the way you attack this problem is that you liken it to walking or driving where the power is transported to the ground. With any airplane (that I know of), the forward motion is provided by force on the still air around the airplane. The better example is holding onto a rope, while standing on rollerskates, while on a treadmill. The treadmill can move as fast as it wants, and you will still be easily able to pull yourself forward by the rope.

Same with an airplane, the treadmill can move in the opposite direction (of take off) 5 times as fast as the forward ground speed of the airplane, but once you fire up those jets, it's not going to matter any more (unless the pilot stomps on the brakes).


bjl913: The issue with running a water truck into a brick wall, is that the forward motion of the water is already accounted for. Just because something isn't physically attached, doesn't mean that it suddenly has more inertia. I imagine that a truck full of water, and a truck full of an equal mass of ice, would have the same force at speed.

Mythbusters did a similar experiment by firing a frozen turkey and a thawed turkey out of a cannon. The thawed turkey would just explode on impact, and the frozen turkey would punch right through.


* I really do suck at math and physics, so someone please correct me if I'm wrong.

[BigBear]

Correct Sturtle, there has to be forward motion... on a treadmill, there is no forward motion (just stationary), thus no lift on the wings. So with a proplane, the prop would wash the air back over teh body, the speed would pull the plane forward and provide lift... however, on atreadmill, the speed would match the power of the prop but it wouldn't move and wouldn't create sufficient lift.... Hope that makes sense...

We need to call Mythbusters. Don't know how old this is but I did find this: http://boingboing.net/2008/01/28/myt...s-tackles.html someone let me know the final result.

[BigBear]

STurtle, you are correct, you need forward motion. However, back to lift: A prop plane will create forward motion by the backwash of the prop moving the air over the body of the plane, as it moves forward, more air is generated and the wings provide lift. On a treadmill, the forward motion (creating air flow over teh wings) is negated as the forward motion is nullified by the back motion of the treadmill.... There is not enough lift to give flight...


Someone needs to call Mythbusters... I did find this: http://boingboing.net/2008/01/28/myt...s-tackles.html Someone let me know the final result.

[Irving]

Yeah but since the wheels are just free spinning, and not attached to anything, how does the treadmill overcome the pull of the props?

For instance, couldn't a water plane take off from a river while heading upstream? If a water plane could take off while going upstream, there is no way a regular plane couldn't take off of a treadmill. The friction of water on a pontoon (both static and kinetic) would be much more difficult to over come than a free spinning wheel.

[theGinsue]

Limited ammo?

I'm sorry, this concept is foreign to me...

Man, I like the way you think!

I can actually explain that one! With some modifications, yes a plane could take off from a runway. But a plane such as a C130 or other big bird can not. The aircraft creates lift with the speed of air under it's wings. When it is on a treadmill, there is no air speed. Yes, the treadmill will get it going fast enough to theoretically lift off, but there will be no air movement under the wings to provide lift....

Like jogging, when you are out on teh street jogging, you can feel the wind on your face. On a treadmill, not so much... how's that?! Passed Physics, but failed Calculus...

This is known as induced wind.


The whole idea of adding a poison to a bullet just seems unethical and immoral to my sense of decency. Lead poisoning, 55gr at a time is what I would prefer.

[BigBear]

Yeah but since the wheels are just free spinning, and not attached to anything, how does the treadmill overcome the pull of the props?

For instance, couldn't a water plane take off from a river while heading upstream? If a water plane could take off while going upstream, there is no way a regular plane couldn't take off of a treadmill. The friction of water on a pontoon (both static and kinetic) would be much more difficult to over come than a free spinning wheel.

Good points... man, I sure would like to catch that episode of Mythbusters and find out the answer. I am assuming that the treadmill is not powered. Neither are the wheels on a prop. So, as the prop pulls the plane forward, the wheels would move the treadmill backwards at the same speed. I don't know. The water plane makes perfect sense to me as there is still forward motion. There is no forward motion on a treadmill... thoughts?

I'm about to go buy a treadmill and an RC plane, HAHAHA. I know there are some pilots on here, they need to jump in.

BTW, to keep it all on topic. Poison bullets are worthless, just make your shot count. HA.

[Irving]

Poison bullets are like stabbing someone with a poison chainsaw.

[sniper7]

Poison bullets are like stabbing someone with a poison chainsaw.

I would have to agree.
the only thing I could think of would be a frangible round, shot against body armor except the frangible round is laced with mustard gas or something to that effect.
then again I don't know how much gas you could get into a small round like that and if it would be lethal.

either way, bullets have been doing a good job for hundreds of years, the only thing I would want improvement on is unlimited ammo