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Trust the kinetic energy
(8) | 16/09/2013 | Translate: Professor Chris Bergman shows us a very interesting experiment with the law of conservation of energy.
The failed experiment with the pendulum During a physics lesson, the teacher asks a student to participate in an experiment with the pendulum. In accordance with the laws of physics, If you let a ball hung from a rope without the boost, will not return to a greater height than what I started. This is the law of conservation of energy. The girl would leave the ball just in front of her face and in accordance with rule, the ball must not touch. But the experiment will not go as expected, as the schoolgirl will be moved from the place of. - Aytopyrobolismos with a machine gun under water As part of an experiment for the Norwegian channel NRK, physics professor Andreas Wahl offered to aytopyrobolithei with a remote machine within a pool, to confirm that the water is much denser than air. Submerged in the pool, the physicist shoots using a long string, While the gun marks his body. He then observed that the bullet travels only a few inches before you completely lose kinetic energy due to the density of water.
- Fun physics experiments In a high school in the United States, a physics teacher has gathered his students in a chain for an experiment with static electricity. The last in line is a Van de Graaf generator, and the first will touch a student outside the chain.
- The experiment with batteries As we demonstrated this experiment by the scientific World Chemistry community in Britain, We can measure how much energy is left in a battery depending on the soil anapidisi. The battery that doesn't bounce at all is fully charged, while the one with the smallest load bounces higher than all.
- Physics experiment at school A physics teacher does an experiment with an empty container, which is filled with a flammable gas and set on fire. He then covers his mouth, and this is compressed. The fire removes the oxygen inside the container, resulting in a pressure difference. There is higher atmospheric pressure outside the container than low pressure inside it. so the container is compressed.
- 9 Cyclists charge a Tesla battery for 20 minutes How much can 9 riders charge the battery of a Tesla Model X by pedaling for 20 minutes; It seems like a trap question, but the answer is quite easy: Very little. With experiments like the one on the Finnish TV show Ennätystehdas, you realize the amount of energy a car consumes.
- Galileo's experiment in the largest vacuum chamber A bowling ball and a feather are dropped from the same height, at the same time. Which of the two will arrive faster in soil; Physics Professor Brian Cox from the BBC, visit the largest vacuum chamber in the world to repeat the experiment of Galilean conditions in space, i.e. without air resistance.
- How your voice sounds to others; It is generally known that our voice sounds different to us than to others. This usually occurs when we hear our voice recorded. The voice Chris Beatty professor shows a simple experiment, with which we can hear our voices as you listen to someone else in the room.
- The impressive experiment of Professor This is the moment that a chemistry professor impressed his students with a dangerous experiment by putting the fire for a few seconds on the floor of the classroom. Professor Stoops with a burning test tube containing liquid methane, While he has asked students to sit with legs in the air and their bags over to school.
- The pendulum of Professor Astrophysics Professor Walter Lewin, explains in a very entertaining way the conservation of mechanical energy at MIT University.
- Cats love their owners; Daniel Mills, Professor veterinary Behavioral Medicine at the University of Lincoln, conduct an experiment to see how cats react when their owners are missing. Is a variation of a similar experiment used in infants and dogs.
- The best demonstration of the momentum of an object Professor Walter Lewin at MIT University makes a very interesting experiment to explain the momentum and gyro phenomenon.
- Steel melting with solar energy Using concentrated solar energy with the help of a huge mirror, the steel melts like butter. In fact this construction located at Sandia Labs in New Mexico, be part of a great experiment. A research team trying to create fuel from thin air, breaking atoms of carbon dioxide with help of solar energy. If this succeeded, then the carbon monoxide arising from fragmentation can be used to create liquid fuels.
- Illustration of music on fire This experiment is called a Rubens tube. Each note has a wavelength and a frequency. When the notes change, the fire reflects them through the tube.
- Go diving without getting wet The diving ship Carl Straat located in the river Rhine, makes it possible to carry out observations and experiments without a diving suit at the bottom of the water.