Subdeacon Joe Posted April 17, 2011 Share Posted April 17, 2011 Really, Really Cool Video Various types of bullets hitting various materials. Sucky music, so maybe turn your sound down low. But some GREAT images in there. Link to comment Share on other sites More sharing options...
Charlie Harley, #14153 Posted April 17, 2011 Share Posted April 17, 2011 Very cool! I want to know how they got the projectiles to impact in mid-air. Link to comment Share on other sites More sharing options...
Iron Pony Posted April 17, 2011 Share Posted April 17, 2011 Cant imagine the size of the smile on Harold Edgerton's face could he see these. Joe is there any description info with these videos? Link to comment Share on other sites More sharing options...
Subdeacon Joe Posted April 17, 2011 Author Share Posted April 17, 2011 Cant imagine the size of the smile on Harold Edgerton's face could he see these. Joe is there any description info with these videos? Unfortunately, not that I have been able to find. Yet. Link to comment Share on other sites More sharing options...
Badger Mountain Charlie SASS #43172 Posted April 17, 2011 Share Posted April 17, 2011 Very cool! I want to know how they got the projectiles to impact in mid-air. Just watch me at the next match, Charlie. Link to comment Share on other sites More sharing options...
Doc Windshadow Posted April 18, 2011 Share Posted April 18, 2011 I think some of the target plates were of a soft metal like lead or Aluminum as the results were very like some experiments I did when I was a kid. the scab off of the back of the plate was just like that I saw from3/4 inch thick 6061-T6 Aluminum I shot at. Others seem to be mild steel and yet others were armor or hardened plate and of course there were the gelatin target blocks though they seemed a bit soft for ballistic gelatin interesting how little the larger slugs were deflected by the smaller coming in from the side would love to know the details and how it was done it is a good reenforcement on the need to have good side shields on our shooting glasses though! Thanks for posting it Cheers Windy Link to comment Share on other sites More sharing options...
Subdeacon Joe Posted April 18, 2011 Author Share Posted April 18, 2011 I think some of the target plates were of a soft metal like lead or Aluminum as the results were very like some experiments I did when I was a kid. the scab off of the back of the plate was just like that I saw from3/4 inch thick 6061-T6 Aluminum I shot at. Others seem to be mild steel and yet others were armor or hardened plate and of course there were the gelatin target blocks though they seemed a bit soft for ballistic gelatin interesting how little the larger slugs were deflected by the smaller coming in from the side would love to know the details and how it was done it is a good reenforcement on the need to have good side shields on our shooting glasses though! Thanks for posting it Cheers Windy Some of the targets were sheetrock, I think. Some plexiglass. The glass is obvious. I suspect that there was deflection of the larger slug, but keep in mind the time frame we see there. At about 1,000,000 frames per second, we are not seeing but a few hundred thousandths. Look at how little spin we see, but those bullets are spinning at several thousand RPM (say a 1:12 twist rate, at 2700 FPS, that is what, over 160000 rpm? ) Link to comment Share on other sites More sharing options...
Doc Windshadow Posted April 18, 2011 Share Posted April 18, 2011 You are right about the sheetrock and 2 kinds of glass (Tempered and I think safety) I wonder if the plastic was acrylic or?polycarb? I wonder what the white balls that they were impacting the bullets in flight were... sure would love to read a detailed description of those shots with full parameters Link to comment Share on other sites More sharing options...
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