Magic Bullet

[RascalPuff]

Dear Nobody, Prof, Michael (and whomever else may find an interest):

Have you compared this post - the Magic Bullet - with The 'curvature of space-time' is the physical expansion of matter'? (listed under 'space-time')

This post and that one are a matching pair of dove-tailing messages.

Best regards (please share your popcorn),
- RP

[RascalPuff]

It was a mystery for years why a co-axially - clockwise (right-hand) - spinning bullet, fired horizontally, parallel to the surface of a calm body of water, veered off to the left (counter-clockwise) when it skipped across the water...

The enigma was finally resolved when it was realized that the clockwise spin was causing the back end of the bullet to move to the right, steering the front end of the bullet to the left, in the opposite direction of the co-axial spin.

This is an example of of how considerations about spin need be thoroughly thought out before any resolute conclusions may be reached. The issued missile appeared to be acting contrary to logic, whereas upon closer scrutinization, it was behaving as could be expected when all of the involved information was closely scrutinized.

"The enigma was finally resolved when it was realized that the clockwise spin was causing the back end of the bullet to move to the right, steering the front end of the bullet to the left, in the opposite direction of the co-axial spin."

Would the above have anything to do with the back end hitting the water first, where the spin would cause the bullet to veer left?

Dear Nobody:

An additional note on this issue is that the trajectory of rifled bullets do not behave like the trajectories of arrows, for example.

A projected arrow alters its angle from being let loose at say, 45o - it returns to earth, head first; at a 45o angle. Whereas,a rifled projectile returns to earth back-end first, also at the same angle it was fired. Of course this fact is cogent to and confirms your astute observation.

Best regards,
- RP

[mkirkpatrick]

Now then,what if this here bullet was made of plastic,now what difference if any would that make over metal? Just a thought along the highway of life.




regards michael,

[RascalPuff]

Now then,what if this here bullet was made of plastic,now what difference if any would that make over metal? Just a thought along the highway of life.




regards michael,

_______________________________

Dear Michael:

Bullets are made of dense, relatively heavy material in order that their ballistic coefficent - or sectional density - maintains their inertial stability, which is otherwise lost (they begin to 'tumble' and quickly lose velocity, accuracy and distance traveled) if and when made of a lighter material.

Best regards,
- RP

[mkirkpatrick]

_______________________________

Dear Michael:

Bullets are made of dense, relatively heavy material in order that their ballistic coefficent - or sectional density - maintains their inertial stability, which is otherwise lost (they begin to 'tumble' and quickly lose velocity, accuracy and distance traveled) if and when made of a lighter material.

Best regards,
- RP

I am most grateful Rascal for your speedy and reponsive reply,thank you.


regards michael.