Knight: There are several ways to tell if a witch.
Sunday, November 9, 2008
How Many Miles Is A Lot For A Diesel Truck
on witches, ducks and other things
Knight: There are several ways to tell if a witch.
Villager: Oh yeah? Tell us Knight: There are several ways to tell if a witch.
Gentleman: Tell me What do you do with witches?
Villagers burn them! Burn them!
Knight: And that will burn apart from witches?
Villagers: More witches
Villager: Wood!
Villager: Why are they made of wood?
Knight: Right, right And how can you know if this is made of wood?
Villager: Making a bridge with it.
Knight: But you can not make the stone bridge also? Huh?
Villager: Yeah, right.
Knight: And the wood sink in water?
villagers (all at once): No! No! Fleet! Tirémosla the swamp!
Knight: And what else floats in water?
Villagers: apples, stone small knife, a cricket ...
King Arthur: A goose!
Knight: Exactly. So if
Villager then ... ... if you weigh the same as a goose, is made of wood ...
Knight: .. . And therefore ...
Villager: A witch!
"
The Monty cuadrad
to" Monty Python
Go is noted that the mean age was not well developed even physics if not know that there are better ways to tell if it was a witch who set fire or pulling into a lake, but good times were different. If you know a few basic physical concepts about what happens when someone threw water would seek a better way to know if anyone practicing witchcraft. For if a body is immersed in a liquid that appear on the body two forces in opposite directions. The peso, which is equal to its mass times the fu
Erza of gravity, which pushes down and the thrust exerted by the liquid on the body, which is equal to the weight of the volume of liquid displaced, that drives him upwards. If we develop the expressions of both forces and operate, we see that the behavior of the body in the water depends on the densities of body fluid. If the density of the liquid is greater than that of the body, the latter float with an increased volume is not submerged, the greater the density of the liquid, if instead the body's density is greater than the liquid that will sink. 
Well then happens to the poor girl when thrown into the lake, for your clothes to absorb water began to gain weight without increasing in size, which translated into physical terms means that the density began to increase to be greater that of water, when he starts to sink. If I do not think we can do some calculations to verify this, suppose our poor girl weighs about 55 kilos, say we're in winter, then take up about 3 kilos more than clothes, doing some quick calculations with body density of 0.95 g/cm3 can get your approximate volume is 600 cm3. Now that our victim has tirémosla characteristics of the lake where his clothes begin to absorb water to absorb about 8 liters. That means that now weigh around 65 kilos, but its volume would still be 600 cm3, so the density increase to the 1.1 g/cm3, which would mean it would start to sink. If the witch hunters had known more of physics would have sought a better way to find witches.
Well then happens to the poor girl when thrown into the lake, for your clothes to absorb water began to gain weight without increasing in size, which translated into physical terms means that the density began to increase to be greater that of water, when he starts to sink. If I do not think we can do some calculations to verify this, suppose our poor girl weighs about 55 kilos, say we're in winter, then take up about 3 kilos more than clothes, doing some quick calculations with body density of 0.95 g/cm3 can get your approximate volume is 600 cm3. Now that our victim has tirémosla characteristics of the lake where his clothes begin to absorb water to absorb about 8 liters. That means that now weigh around 65 kilos, but its volume would still be 600 cm3, so the density increase to the 1.1 g/cm3, which would mean it would start to sink. If the witch hunters had known more of physics would have sought a better way to find witches.
Indeed, thanks to the stated above we can explain why ducks float, not because they weigh less than wood. The skin of the duck is covered with a fatty substance secreted from the preen gland is located at the base of the tail, which acts as a thermal insulator and as a waterproof their feathers avoid coming into direct contact with water which prevents the occurrence of the phenomenon discussed earlier. Besides, their feathers are hollow and are filled with air that makes its density decreases. Which does not occur in other birds such as chickens ....
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