Evolutionary anthropologist & public health geek.

28th August 2011

Quote reblogged from A Momentary Flow with 421 notes

Heisenberg and Schrodinger were in a car speeding down the highway when a cop pulls them over
He comes to the window and says, “do you have any idea how fast you were going?” Heisenberg replied, “no but I can tell you exactly where I was.”Hearing this strange reply the cop decides to conduct a search of the car. After opening the trunk of the car he immediately returns to the front window where he startlingly asks, “did you know there’s a dead cat in your trunk?!”Schrodinger then looks at him and says, “well thanks, now I do.

Tagged: physics

Source: mikerickson

7th December 2009

Photo

When Liquids aren’t so Liquid (Starts with a Bang)
“[The Central American Basilisk] weighs little enough, has feet with a big enough surface area, and can move quickly enough to walk on water! There is nothing special to it; if we were light enough, fast enough, and had large enough feet, we could do exactly the same thing.
Of course, we’re not. But you’re familiar with water acting like a solid, even if you don’t know it. What would happen if you jumped out of an airplane and your parachute didn’t open? Would landing over a lake be any better for you than landing on dry land?
Of course not; on an extreme enough timescale, any fluid can act like a solid, and any solid can act like a liquid! Don’t believe it? Take some silly putty, roll it into a ball, and throw it against a wall. It’ll bounce, acting like a solid! Now take that ball of silly putty, and put it on a flat surface with a hole in it. And wait a few minutes. You should start to see it act like a liquid…”

When Liquids aren’t so Liquid (Starts with a Bang)

“[The Central American Basilisk] weighs little enough, has feet with a big enough surface area, and can move quickly enough to walk on water! There is nothing special to it; if we were light enough, fast enough, and had large enough feet, we could do exactly the same thing.

Of course, we’re not. But you’re familiar with water acting like a solid, even if you don’t know it. What would happen if you jumped out of an airplane and your parachute didn’t open? Would landing over a lake be any better for you than landing on dry land?

Of course not; on an extreme enough timescale, any fluid can act like a solid, and any solid can act like a liquid! Don’t believe it? Take some silly putty, roll it into a ball, and throw it against a wall. It’ll bounce, acting like a solid! Now take that ball of silly putty, and put it on a flat surface with a hole in it. And wait a few minutes. You should start to see it act like a liquid…”

Tagged: non-Newtonian fluidsphysicsscience