There is this farmer who is having problems with his chickens. All of the sudden, they are all getting very sick and he doesn't know what is wrong with them. After trying all conventional means, he calls a biologist, a chemist, and a physicist to see if they can figure out what is wrong. So the biologist looks at the chickens, examines them a bit, and says he has no clue what could be wrong with them. Then the chemist takes some tests and makes some measurements, but he can't come to any conclusions either. So the physicist tries. He stands there and looks at the chickens for a long time without touching them or anything. Then all of the sudden he starts scribbling away in a notebook. Finally, after several gruesome calculations, he exclaims, 'I've got it! But it only works for spherical chickens in a vacuum.'
An engineer, a physicist, a mathematician, and a mystic were asked to name the greatest invention of all times.The engineer chose fire, which gave humanity power over matter.The physicist chose the wheel, which gave humanity the power over space.The mathematician chose the alphabet, which gave humanity power over symbols.
The mystic chose the thermos bottle."Why a thermos bottle?" the others asked."Because the thermos keeps hot liquids hot in winter and cold liquids cold in summer.""Yes -- so what?""Think about it." said the mystic reverently. That little bottle -- how does it know?"
Physics professor has been doing an experiment, and has worked out an emphirical equation that seems to explain his data. He asks the math professor to look at it.
A week later, the math professor says the equation is invalid. By then, the physics professor has used his equation to predict the results of further experiments, and he is getting excellent results, so he asks the math professor to look again.
Another week goes by, and they meet once more. The math professor tells the physics professor the equation does work, "But only in the trivial case where the numbers are real and positive."
The experimentalist comes running excitedly into the theorist's office, waving a graph taken off his latest experiment. "Hmmm," says the theorist, "That's exactly where you'd expect to see that peak. Here's the reason." A long logical explanation follows. In the middle of it, the experimentalist says "Wait a minute", studies the chart for a second, and says, "Oops, this is upside down." He fixes it. "Hmmm," says the theorist, "you'd expect to see a dip in exactly that position. Here's the reason...".
Heisenberg was driving down the Autobahn whereupon he was pulled over by a policeman. The policeman asked, "Do you know how fast you were going back there? Heisenberg replied, "No, but I know where I am."
How do you know that the driver driving toward you is a physicist?He has a red sticker on his bumper, saying: "If this sticker is blue, you are driving too fast."
Eight ways to use a barometer to find the height of a building:
Measure the height of the barometer. Scale the side of the building, measuring its height in barometer-units.
Drop the barometer from the top of the building. Measure the time until it hits the street. Correcting for the mass/surface ratio of the instrument, use basic acceleration equation to find the height.
Tie string to top of barometer. Lower from roof to almost ground. Swing. Period of pendulum can be used to find distance from barometer's Center of Gravity to top of building.
Tie a long cable to the barometer and lower it from the top of the building to the ground, and then measure the length of the cable.
Take the barometer outside on a sunny day, measure its shadow and the buildings shadow.
Drop the barometer from the top of the building. Measure how far was it shifted by Corriolis force. The rest is trivial.
Sell the barometer. Purchase a tape measure long enough to measure the height of the building.
Find someone who knows how tall the building is, and trade him the barometer for the information.
Physics Revisited
Gravity was discovered by Sir Isaac Newton. It is chiefly noticeable in the autumn, when the apples are falling off the trees.
You can listen to thunder after lightning and tell how close you came to getting hit. If you don't hear it, you got hit, so never mind.
When people run around and around in circles, we say they are crazy. When planets do it, we say they are orbitting.
The tides are a fight between the Earth and moon. All water tends towards the moon, because there is no water in the moon, and nature abhors a vacuum.
The moon is more useful than the sun, because the moon shines at night when you want the light, whereas the sun shines during the day when you don't need it.
To remove air from a flask, fill it with water, tip the water out, and put the cork in quick before the air can get back in.
Isn't it meaningless to speak of a 45 degrees angle unless you specify Fahrenheit or Celcius?
An object at rest will always be in the wrong place.An object in motion will always be headed in the wrong direction.
For every action, there is an equal and opposite criticism.
Doppler effect is the tendency of stupid ideas to seem smarter when you come at them rapidly.
Cheers!