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I shouldn't need to say it buut ; photons are NOT bulk matter .
10% of kinetic energy is transferred to the Massive Plate , 90% of KE is retained by glass ball after rebound . Now, Beanbag on Steel : 55/45/0.55% of kinetic energy is transferred to Massive Plate , 45% becomes molecular momentum during "bonding" , .002% is retained as rebound KE .
Which part of "Energy does not work in the same way as momentum." do you not understand?
It's a good thing that "energy does not work in the same way..." , this frees me up to piss energy all over the universe without suffering from that obnoxious "rocket equation" !P.M.
......................Recap .The system contains a number of recycling units of kinetic energy . Reducing the velocity of units by friction reduces the system energy ( momentum ) asymmetrically , thus engendering an effective "push" on the entire unit . Obviously , since no reaction mass is used , the Rocket Equation Law is bypassed . There's always a tricK , eh !P.M.
Also , the kinetic energy and the momentum rise and fall together ,
Ain't nothin' like some basic math to set ya straight!
How's about that Coefficient Of Restitution Table ?
I already quoted the necessary rebound percentages
a good enough guide-line I think !
a total refusal to acknowledge the basic math involved
I am under no obligation to subject myself to such !
Replies #107&109 show that I understand PLENTY
I already quoted the necessary rebound percentages .
The imbalance is obvious
thus the principle of USING this imbalance to engender push (asymmetric thrust) should be easily understood by all .
Motion imbalance is the causative factor for most reciprocating engines ;
; a good enough guide-line I think !
Hey , I know , think of it as negative energy .
That should produce a Woody Harrelson !
This opposes the beanbag transferring more than 1/2 of it's kinetic energy to it's steel wall .
This opposes the beanbag transferring more than 1/2 of it's kinetic energy to it's steel wall . As I said before , this is solid shove versus light dink
Let’s assume that the beanbag and the steel ball both push the wall equally hard
As for the board thing , did you just hike up your shorts , and run away screaming !?
..............Illusion......Alright , I have to backtrack a bit . Convertalot is backing up that 2x bit , counter-intuitive though it is .
Optimum Spaceship Design ? Let the assumption be that we have developed an effective Impulse Drive . Not a rocket , not an ion thruster , but a powerful & efficient , nuclear-powered , drive mechanism . This being the case we can presume peak travel velocities in excess of 1 million miles per hour . Although such a ship can afford to carry adequate radiation shielding for the job , interplanetary dust and debris pose a lethal danger . At full speed , one pea-sized rock would impact a ship with more explosive power than a stick of dynamite . Such an impact would punch through blunt shielding , wrenching the ship badly , and spraying deadly shrapnel through it's interior . To prevent this , a different type of shield is necessary . The most effective design would be a long cone . This would be slightly wider than the ship , and held ahead of the ship by flexible mounts . Constructed mainly of high-tech , impact-absorbing materials , it would be coated with a thick layer of iron sand , contained within an aluminum skin . The resultant composite effect would absorb tremendous energy , and yet be reasonably light . The ship proper would be a long, thin , pencil-like design . In other words ; a Needle-Ship . The crew working & living spaces would be directly behind the cone . The supplies & auxiliary craft would be next , the Impulse Drive machinery would be after that , and the Reactors ( w/minimal shielding ) would be last . Electric thrusters would arranged about the ship for fine attitude control . Heat radiators , solar panels , antennas , etc. would all be arranged strategically on the ship exterior. The final requirement would be the trajectory . In order to minimize in-flight impacts , the ship would need to follow a parabolic trajectory , rising up above the plane of the ecliptic . This would place the high-speed portion of it's course above 99% of possible impactors . A ship of this type would benefit from full recycling of organic waste products . Pre-positioning of LNG would also improve capability . A two-ship formation would magnify safety and redundancy , and possibly allow for tethered , centripetal gravity as well . Alright , this would kick 2001s Odyssey all over the place ! Enjoy your new spaceship ! .P.M.