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![]() "Jim E" wrote in message ... "Thomas Schoene" wrote in message link.net... John Lansford wrote: The chicken gun exists. I've seen it in operation in fact. I'm guessing the myth in qustion is about the frozen vs non-frozen chickens.* It will be interesting to see what the Mythbusters guys do with it. Watched the program. Their conclusion, frozen or thawed makes no difference to impact. Strictly a function of mass, velocity, and time of deceleration. Hmmm, I suspect when dealing with a kg of water it makes a big difference to the fan blades if that water is frozen in a single lump. Keith |
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In article , Keith Willshaw
wrote: "Jim E" wrote in message ... "Thomas Schoene" wrote in message link.net... John Lansford wrote: The chicken gun exists. I've seen it in operation in fact. I'm guessing the myth in qustion is about the frozen vs non-frozen chickens.* It will be interesting to see what the Mythbusters guys do with it. Watched the program. Their conclusion, frozen or thawed makes no difference to impact. Strictly a function of mass, velocity, and time of deceleration. Hmmm, I suspect when dealing with a kg of water it makes a big difference to the fan blades if that water is frozen in a single lump. Indeed. Strange to relate, more windscreens are smashed by hailstones than by raindrops. I'd be interested to know what experiments, if any, the programme did in order to reach its conclusions. Obviously they are quite correct about kinetic energy and momentum, but transfer of momentum operates in many different ways depending very much on the nature of the materials in which the transfer occurs. -- "The past resembles the future as water resembles water" Ibn Khaldun My .mac.com address is a spam sink. If you wish to email me, try alan dot lothian at blueyonder dot co dot uk |
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On or about Mon, 19 Jan 2004 09:28:37 +0000, Alan Lothian
allegedly uttered: In article , Keith Willshaw wrote: Hmmm, I suspect when dealing with a kg of water it makes a big difference to the fan blades if that water is frozen in a single lump. Indeed. Strange to relate, more windscreens are smashed by hailstones than by raindrops. Hailstones can get rather larger than raindrops. In the various updrafts within stormclouds the raindrops grow until they reach a size at which they're too unstable in the airflows and fission into smaller drops, hail just keeps growing until the updrafts can't keep them up. I've never been hurt by rainfall, but one short shower of 1" hail left me very battered, slightly dazed, and in need of a large drink and a quiet lie down. I'd be interested to know what experiments, if any, the programme did in order to reach its conclusions. Obviously they are quite correct about kinetic energy and momentum, but transfer of momentum operates in many different ways depending very much on the nature of the materials in which the transfer occurs. I have to admit I missed the show and will keep an eye out for the inevitable rerun as it would be one I'd like to see. --- Peter Kemp Life is short - Drink Faster |
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On Mon, 19 Jan 2004 17:52:01 -0500, Peter Kemp
peter_n_kempathotmaildotcom@ wrote: On or about Mon, 19 Jan 2004 09:28:37 +0000, Alan Lothian allegedly uttered: In article , Keith Willshaw wrote: Hmmm, I suspect when dealing with a kg of water it makes a big difference to the fan blades if that water is frozen in a single lump. Indeed. Strange to relate, more windscreens are smashed by hailstones than by raindrops. Hailstones can get rather larger than raindrops. In the various updrafts within stormclouds the raindrops grow until they reach a size at which they're too unstable in the airflows and fission into smaller drops, hail just keeps growing until the updrafts can't keep them up. I've never been hurt by rainfall, but one short shower of 1" hail left me very battered, slightly dazed, and in need of a large drink and a quiet lie down. Indeed. We had a hailstorm here (near Dallas, TX) last summer that was so loud I couldn't hear the baseball game on TV. When it stopped, I went outside & picked up some 2-1/2" dia. hailstones off my lawn! I can't imagine getting hit by one! JM |
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"Doug \"Woody\" and Erin Beal" wrote in message news:
I watched a portion of Myth Busters where the two knuckleheads tried to debunk the "explosive decompression" phenomenon in the movies. You get the picture. Gun goes off in plane. Fuselage rips open and 6-8 passengers, in flight meals, luggage, and an unsuspecting flight attendant fly into the atmosphere. They pressurized a bone-yarded fuselage with a huffer and used a remote control .45 to shoot out windows and fuselage to see if a large hole would expand out the small starter hole. Results: Small holes stayed small and made hissing noises. Conclusion: Myth. Busted. They failed, however, to introduce a 300/.78 slipstream into the equation, but I doubt it would have changed the result. Point being that these guys seem to make some critical assumptions that *might* affect the results. I didn't see the whole show, but I don't remember them ever addressing the lack of slip stream. --Woody Next time you're out here (yea right) I'll show you some video of our recent tests. We did our own series of tests and recreated the vital conditions. The conclusions are the same as you stated. Explosive decompressions are great for the movies, not realistic though. BlackBeard |
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![]() Peter Kemp wrote: On or about Mon, 19 Jan 2004 09:28:37 +0000, Alan Lothian allegedly uttered: In article , Keith Willshaw wrote: Hmmm, I suspect when dealing with a kg of water it makes a big difference to the fan blades if that water is frozen in a single lump. Indeed. Strange to relate, more windscreens are smashed by hailstones than by raindrops. Hailstones can get rather larger than raindrops. In the various updrafts within stormclouds the raindrops grow until they reach a size at which they're too unstable in the airflows and fission into smaller drops, hail just keeps growing until the updrafts can't keep them up. I've never been hurt by rainfall, but one short shower of 1" hail left me very battered, slightly dazed, and in need of a large drink and a quiet lie down. I'd be interested to know what experiments, if any, the programme did in order to reach its conclusions. Obviously they are quite correct about kinetic energy and momentum, but transfer of momentum operates in many different ways depending very much on the nature of the materials in which the transfer occurs. I have to admit I missed the show and will keep an eye out for the inevitable rerun as it would be one I'd like to see. --- Peter Kemp Life is short - Drink Faster There was a hailstorm in Texas several years ago during a large outdoor festival of some sort. Couple of folks maimed, lots hospitalized, millions of dollars in property damage. ( Broken glass, totaled cars, roof damage. ) --Dale |
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"Dale Farmer" wrote in message
... SNIPPED There was a hailstorm in Texas several years ago during a large outdoor festival of some sort. Couple of folks maimed, lots hospitalized, millions of dollars in property damage. ( Broken glass, totaled cars, roof damage. ) IIRC, that was in Fort Worth during an outdoor Mayfest thing. __!_!__ Gizmo |
#9
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![]() Dale Farmer wrote: Peter Kemp wrote: On or about Mon, 19 Jan 2004 09:28:37 +0000, Alan Lothian allegedly uttered: In article , Keith Willshaw wrote: Hmmm, I suspect when dealing with a kg of water it makes a big difference to the fan blades if that water is frozen in a single lump. Indeed. Strange to relate, more windscreens are smashed by hailstones than by raindrops. Hailstones can get rather larger than raindrops. In the various updrafts within stormclouds the raindrops grow until they reach a size at which they're too unstable in the airflows and fission into smaller drops, hail just keeps growing until the updrafts can't keep them up. I've never been hurt by rainfall, but one short shower of 1" hail left me very battered, slightly dazed, and in need of a large drink and a quiet lie down. I'd be interested to know what experiments, if any, the programme did in order to reach its conclusions. Obviously they are quite correct about kinetic energy and momentum, but transfer of momentum operates in many different ways depending very much on the nature of the materials in which the transfer occurs. I have to admit I missed the show and will keep an eye out for the inevitable rerun as it would be one I'd like to see. --- Peter Kemp Life is short - Drink Faster There was a hailstorm in Texas several years ago during a large outdoor festival of some sort. Couple of folks maimed, lots hospitalized, millions of dollars in property damage. ( Broken glass, totaled cars, roof damage. ) --Dale Storytellers like to toss around the phrase "_____ball-sized hail," the diameter of the ball growing with the teller's brazenness. But back in the late 70s, when I was working as an insurance adjuster in eastern end of Tornado Alley (southern Illinois, Western Kentucky and Tennessee, southwestern Missouri), I got a claim once where some folks on a farm said they'd had some structures and vehicles damaged by "baseball-sized hail." We'd heard such things around the office plenty of times, but these folks had gone to the trouble to bag some of the stones and stick them in a freezer. And they weren't exaggerating; somewhere I've still got the Polaroids. Given that the projectiles in question had had a chance to melt some -- it was summer, after all -- before the insureds figured it was safe enough to go outside and assess, it's possible they had been the size of softballs when they came down. The tin roof on their tractor shed looked life it'd been hit with cluster bomblets. That area sees some pretty extreme weather phenomena. My dad still lives there; he says that a twister that came through last summer and killed a couple people just a mile from his house was so powerful it pulled utility poles straight out of the ground without breaking them. He'd been in the claims business for 30 years, and maintains it was the most awe-inspiring damage he'd ever personally witnessed. |
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David Windhorst wrote:
[Snip previous hailstones stuff] got the Polaroids. Given that the projectiles in question had had a chance to melt some -- it was summer, after all -- before the insureds figured it was safe enough to go outside and assess, it's possible they had been the size of softballs when they came down. The tin roof on their tractor shed looked life it'd been hit with cluster bomblets. 12" or 16" softballs? -- OJ III [Email sent to Yahoo addy is burned before reading. Lower and crunch the sig and you'll net me at comcast] |
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