Jim, Well I was thinking of low-budget, Hong Kong in the 70's type special effects, and just meant that things don't really fly around as much as we see in the movies. That said, I'm a huge fan of stuff flying around, so thanks :-) Peter
On 6/24/08, Jim Lux <[EMAIL PROTECTED]> wrote: > > At 09:25 AM 6/24/2008, Jim Lux wrote: > >> At 02:31 PM 6/20/2008, Peter St. John wrote: >> >>> The destructive radius of Little Boy was about total, up to about one >>> mile radius, and tapered down to light at about two miles. So being in a >>> lead-lined steel container at 2000 meters might be OK for Indiana. >>> >>> In all action movies, blasts throw people unhurt for long distances; when >>> that much force (to impart that much momentum) would kill you. That part is >>> just conventional Hollywood. I could teach RGB to kick me so that I fly >>> through the air as in a Bruce Lee movie; it's a stunt, and real kicks >>> reallly hitting drop you like a sack of potatoes, I've seen it. But not in >>> movies. Similarly bullets, they drill holes in you, if they pushed you >>> through the air the recoil would do the same to the shooter. >>> >>> As for the scene's good taste I can't say, I haven't seen the movie yet >>> :-) >>> >>> Peter >>> >> >> As someone who used to work in the business of doing this sort of thing >> (e.g. physical effects) for movies, TV shows, and commercials, you can >> assume that whatever you see on screen is specifically designed to "look >> like" what the director thinks will create the correct impression in the >> viewer. (e.g. real rain is invisible on film, for all intents and >> purposes..) >> >> For blasts (or kicks, etc.) flinging folks about, they use what is known >> as a "jerk vest" (for the high third derivative of position, not to describe >> the wearer) and bungee cords, springs, hydraulic winches, etc. Note well >> that the effects tech just runs the gear. A stunt person (aka human >> sandbag) survives the loads (and gives thanks to Stapp). >> >> To fling things about, we used a variety of things.. air power is popular, >> so is gunpowder. (look under a car that flips over for the piece of >> telephone pole used as the piston in a one-shot internal combustion engine.) >> Speaking of refrigerators, air pressure is just fine for a hundred meter or >> so launch. >> > > For some examples: > jerk vest test > http://www.reelefx.com/index.php?c=effect.view&id=260 > > refrigerator launch > http://www.reelefx.com/index.php?c=effect.view&id=124 > > http://www.reelefx.com/ gives a lot of examples > > > http://www.reelefx.com/index.php?c=effect.list&id=15 > > has variety of specific effect tests. Search for 'air mortar' for launches > > > Naturally, I'm particularly proud of the tornado and multicam, since I > helped make them... > > http://www.reelefx.com/index.php?c=effect.list&id=13 tornados > http://www.reelefx.com/index.php?c=effect.view&id=153 from Swordfish > http://www.reelefx.com/index.php?c=effect.view&id=169 (stuff done more > recently, now with digital cameras, which makes life MUCH easier..) > Eadweard Muybridge would be proud of us. > > >
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