"Wanted" and twisted bullets
Cross post from blog
The other day I watched the film Wanted, Russian viewers known as “Wanted”. After the session, the average viewer, whom I am, probably raises many questions. For example, "can a human heart beat with a frequency of 400 beats per minute" or "how fast you need to run to fly hell knows how many meters horizontally." However, the main feature of the film were bullets, twisting stylish wrist twist. Is this possible in real life?
I’m not a physicist, so I climbed into Google, climbed a couple of scientific forums and dug up some information. Maybe I incorrectly translated some terms, so forgive me in advance. So, in theory, “twist” with your hand can be spherical objects, such as musket bullets and paintball balls, but this cannot be done with modern bullets fired from modern weapons.
Imagine that you twist a rope over your head with a tennis ball attached to it. Where does the power come from? From the rope. Now release the rope. The ball continues to move in a circle? It would look creepy. We all know that the ball will fly away from you. As soon as he is released, only gravity acts on him, which pulls him down.
Now back to the weapon scenario. If the weapon rotates at the time of the shot, then until the bullet leaves the barrel, horizontal force will press on it. The bullet will move along the curve until the inner wall of the barrel presses against it. As soon as the bullet leaves the barrel, there will be no more horizontal force. There will be no force, it means there will be no horizontal acceleration and horizontal curvature.
')
In general, this is impossible. However, you can change the trajectory of the bullet after the shot.
1. Wind
2. Coriolis effect. Although it’s not a bullet issue, it’s just that the globe is spinning under the bullet during the flight. At short distances, this effect is negligible; moreover, it matters in which direction to shoot. If you are at the equator and shoot to the west, the bullet will not shift at all.
3. Strong magnetic field
4. Spherical shells, as already mentioned before. The Magnus effect can make them move in a curve if the angle of rotation is not parallel to the motion vector.
Actually, I really liked the movie. Inspiring such. I used to not take seriously what is shown on the screen. And this post is inspired by reports that some people are already trying to repeat this special effect in real life. So far no one has suffered, and thank God.
What the fuck have you done lately?
The other day I watched the film Wanted, Russian viewers known as “Wanted”. After the session, the average viewer, whom I am, probably raises many questions. For example, "can a human heart beat with a frequency of 400 beats per minute" or "how fast you need to run to fly hell knows how many meters horizontally." However, the main feature of the film were bullets, twisting stylish wrist twist. Is this possible in real life?
I’m not a physicist, so I climbed into Google, climbed a couple of scientific forums and dug up some information. Maybe I incorrectly translated some terms, so forgive me in advance. So, in theory, “twist” with your hand can be spherical objects, such as musket bullets and paintball balls, but this cannot be done with modern bullets fired from modern weapons.
Imagine that you twist a rope over your head with a tennis ball attached to it. Where does the power come from? From the rope. Now release the rope. The ball continues to move in a circle? It would look creepy. We all know that the ball will fly away from you. As soon as he is released, only gravity acts on him, which pulls him down.
Now back to the weapon scenario. If the weapon rotates at the time of the shot, then until the bullet leaves the barrel, horizontal force will press on it. The bullet will move along the curve until the inner wall of the barrel presses against it. As soon as the bullet leaves the barrel, there will be no more horizontal force. There will be no force, it means there will be no horizontal acceleration and horizontal curvature.
')
In general, this is impossible. However, you can change the trajectory of the bullet after the shot.
1. Wind
2. Coriolis effect. Although it’s not a bullet issue, it’s just that the globe is spinning under the bullet during the flight. At short distances, this effect is negligible; moreover, it matters in which direction to shoot. If you are at the equator and shoot to the west, the bullet will not shift at all.
3. Strong magnetic field
4. Spherical shells, as already mentioned before. The Magnus effect can make them move in a curve if the angle of rotation is not parallel to the motion vector.
Actually, I really liked the movie. Inspiring such. I used to not take seriously what is shown on the screen. And this post is inspired by reports that some people are already trying to repeat this special effect in real life. So far no one has suffered, and thank God.
What the fuck have you done lately?
Source: https://habr.com/ru/post/28502/
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