After the thread about DIY coil guns the how fruitlessly impractical they are for the hobbyist to build to any real level of function, I bring you this...
http://www.tested.com/science/physi...=maing-grid7|main5|dl12|sec3_lnk1&pLid=279028
An amazingly simple design that plays on physics that has phenomenal results (at of course very close range) for what it is... Something I might build just to say 'Look What I Can Do' with my ping pong ball gun...
The part I found most interesting is that the guy was able to get near MACH speeds with nothing more than the vacuum and atmospheric pressure that is only about 14 PSI... Of course it's clear why as there was literally nothing in front of the ball but just the same, it's a very clever proof of concept...
http://www.tested.com/science/physi...=maing-grid7|main5|dl12|sec3_lnk1&pLid=279028
An amazingly simple design that plays on physics that has phenomenal results (at of course very close range) for what it is... Something I might build just to say 'Look What I Can Do' with my ping pong ball gun...
The part I found most interesting is that the guy was able to get near MACH speeds with nothing more than the vacuum and atmospheric pressure that is only about 14 PSI... Of course it's clear why as there was literally nothing in front of the ball but just the same, it's a very clever proof of concept...