If anyone from Arkansas had been consulted, they would have discovered two things: poultry trucks are open air cages and there is not enough room for the birds to turn around, much less fly.
Rick Rick Froman [email protected] On Aug 3, 2010, at 9:52 AM, "Mike Palij" <[email protected]> wrote: > On Tue, 03 Aug 2010 06:19:49 -0700, Jonathan Mueller wrote: > |To illustrate how even as adults we can struggle with some problems > |like conservation, I tell my students the story of following a truck. > |You are on the road and you find yourself behind a slow semi. You > |notice that as the semi is approaching a bridge the driver pulls a > |baseball bat out of his cab and bangs on the side of his truck. You > |think this is odd. But you notice that he does this every time he > |comes to a bridge. Now you are so curious you just have to find > |out why. So, you follow the truck driver until he stops. You go > |up to him and ask him why he was hitting his truck with a baseball bat. > |he says, "Well, you see, I am carrying a load of live birds in the back > |that weigh 8 tons. And my truck weighs 8 tons. The signs for the > |bridges say you can only weigh 8 tons going over them. So, I bang > |on the side of my truck, the birds fly up in the air, and then my truck > |only weighs 8 tons." I ask my class if the truck driver is right. > > I feel like I'm entering a Monty Python sketch on European versus > African sparrows but the examples used in the Mythbusters show > had closed spaces, so, when a helicopter flew or birds beat their > wings, the forces they generated were confined to the closed system > of the container. What happens to the weight of the container if it > is an open system, that is, there are slats on the side of the container > with the birds so that when they are in flight in the container, the force > generated by their wings can be displaced out of the container? > > That being said, I would make sure that I am about 200 feet away > from a truck like that described above going over a bridge with an > 8 ton carrying capacity. > > -Mike Palij > New York University > [email protected] > > > > > --- > You are currently subscribed to tips as: [email protected]. > To unsubscribe click here: > http://fsulist.frostburg.edu/u?id=13039.37a56d458b5e856d05bcfb3322db5f8a&n=T&l=tips&o=3951 > or send a blank email to > leave-3951-13039.37a56d458b5e856d05bcfb3322db5...@fsulist.frostburg.edu --- You are currently subscribed to tips as: [email protected]. To unsubscribe click here: http://fsulist.frostburg.edu/u?id=13090.68da6e6e5325aa33287ff385b70df5d5&n=T&l=tips&o=3953 or send a blank email to leave-3953-13090.68da6e6e5325aa33287ff385b70df...@fsulist.frostburg.edu
