Videoklipp som matcher søkeordet "science"
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2.2 MegaVolt Lightning - Lichtenberg Figures
http://www.FreeScienceLectures.com The interior of an 18" square x 1" piece of Plexiglas was charged to 2.2 million volts (MV) using a 5 MV particle accelerator. A layer of excess electrons become trapped deep inside. When discharged, the excess charge e Lastet opp av FreeScienceLectures, 2007-06-05 15:49 |
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500kV Electric Discharge at Power Station
http://www.FreeScienceLectures.com The potential between two lines is 500kV, that's half a megavolt! At these potentials the air molecules get ionized and the air transfers electricity creating an impressive electric discharge. The video was taken at El Lastet opp av FreeScienceLectures, 2007-06-05 15:50 |
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Alkali Chemical Element Flame Test
http://www.FreeScienceLectures.com This video shows what different colors the alkali elements burn. Strontium chloride, barium chloride, sodium chloride and potassium chloride are burned. This video was done by YouTube user 'nitrex'. --- It's Never to Lastet opp av FreeScienceLectures, 2007-06-05 15:50 |
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Atmosphere Cloud Wave
http://www.FreeScienceLectures.com An atmospheric cloud wave is a stable structure moving through the clouds. --- It's Never too Late to Study: http://www.FreeScienceLectures.com --- Notice: This video is copyright by its respectful owners. The website Lastet opp av FreeScienceLectures, 2007-06-05 15:51 |
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A Video of Molecules
http://www.FreeScienceLectures.com This video shows how various molecules look. For example, water consisting of two hydrogen atoms and one oxygen atom. The others are: glucose, sucrose, amylose, stearic acid, oleic, glycerol, trigglyceride, phospholipi Lastet opp av FreeScienceLectures, 2007-06-05 15:52 |
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Carl Sagan on Planet Venus
http://www.FreeScienceLectures.com Sagan was central to the discovery of the high surface temperatures of the planet Venus. In the early 1960s, no one knew for certain the basic conditions of Venus' surface and Sagan listed the possibilities in a report Lastet opp av FreeScienceLectures, 2007-06-05 19:00 |
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Carl Sagan Explains the Drake Equation
http://www.FreeScienceLectures.com The most famous American astronomer and astrophysicist Carl Sagan explains the Drake equation. The Drake equation (rarely also called the Green Bank equation or the Sagan equation) is a famous result in the speculative Lastet opp av FreeScienceLectures, 2007-06-05 22:01 |
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Lithium Burns in Air
http://www.FreeScienceLectures.com A small amount of lithium is heated and it reacts very quickly with oxygen creating a burst. This video was created by University of Oxford. --- It's Never too Late to Study: http://www.FreeScienceLectures.com --- Not Lastet opp av FreeScienceLectures, 2007-06-07 12:11 |
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Carl Sagan Explains the Drake Equation
http://www.FreeScienceLectures.com The most famous American astronomer and astrophysicist Carl Sagan explains the Drake equation. The Drake equation (rarely also called the Green Bank equation or the Sagan equation) is a famous result in the speculative Lastet opp av FreeScienceLectures, 2007-06-07 13:23 |
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Carl Sagan on Planet Venus
http://www.FreeScienceLectures.com Sagan was central to the discovery of the high surface temperatures of the planet Venus. In the early 1960s, no one knew for certain the basic conditions of Venus' surface and Sagan listed the possibilities in a report Lastet opp av FreeScienceLectures, 2007-06-07 15:28 |
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Cordyceps Fungus
http://www.FreeScienceLectures.com Incredibly 80% of all the insects live in jungles. There can be more than 8 million individuals in a single hectare. But jungle ants don't have it all their own way. Bullet ants are showing some worrying symptoms. Spore Lastet opp av FreeScienceLectures, 2007-06-07 15:56 |
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Dr. Quantum Explains Double Slit Experiment
http://www.FreeScienceLectures.com Dr. Quantum explains the importance of double slit experiment in physics. If we randomly shoot small objects, say marbles, at the screen through a slit we see a pattern on the wall where they went through the slit and Lastet opp av FreeScienceLectures, 2007-06-07 17:11 |
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Dr. Quantum Visits Flatland
http://www.FreeScienceLectures.com Dr. Quantum welcomes you to flat-land, the world of only two dimensions! In this world there is only forwards, backwards and left and right. There is no up and no down! In this world two dimensional creatures have no Lastet opp av FreeScienceLectures, 2007-06-07 18:55 |
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Everything You See is Fake
http://www.FreeScienceLectures.com Wow. This video clearly shows how the technology of video editing has advanced. Driving at night becomes driving at daytime! Blonde becomes brunette, then redhead and then light brown haired. Two window cleaners at t Lastet opp av FreeScienceLectures, 2007-06-07 20:25 |
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Dr. Quantum Visits Flatland
http://www.FreeScienceLectures.com Dr. Quantum welcomes you to flat-land, the world of only two dimensions! In this world there is only forwards, backwards and left and right. There is no up and no down! In this world two dimensional creatures have no Lastet opp av FreeScienceLectures, 2007-06-08 17:11 |
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Everything You See is Fake
http://www.FreeScienceLectures.com Wow. This video clearly shows how the technology of video editing has advanced. Driving at night becomes driving at daytime! Blonde becomes brunette, then redhead and then light brown haired. Two window cleaners at t Lastet opp av FreeScienceLectures, 2007-06-08 19:20 |
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Exothermic Iron-Oxide and Aluminum Reaction
http://www.FreeScienceLectures.com A metal crucible is filled with iron-oxide and aluminum. A small amount of potassium, sugar and chloride is placed on top of iron-oxide aluminum mixture. A few drops of concentrated sulphuric acide is added to the mixtu Lastet opp av FreeScienceLectures, 2007-06-08 20:17 |
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New Automatic Door
http://www.FreeScienceLectures.com A new type of automatic door is presented at japan tech fair. The idea is that the door is made out of many pieces where has a motion detecor and as you approach them they open just the parts of the door needed for the Lastet opp av FreeScienceLectures, 2007-06-10 12:58 |
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Nuclear Fission Animated
http://www.FreeScienceLectures.com Neutron slams into the nucleus of a heavy element which causes a nuclear fission creating two ligher elements (fission products) and more free neutrons. These free neutrons are absorbed by other heavy elements which cr Lastet opp av FreeScienceLectures, 2007-06-10 13:56 |
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Nuclear Flask Endurance Testing in USA
http://www.FreeScienceLectures.com A nuclear flask made out of 280 tons of solid steel. It is important that these flasks are safe so they are tested extensively! At one of the tests where the flask was filled with water and dropped from some height a s Lastet opp av FreeScienceLectures, 2007-06-10 14:30 |
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Operation Smash Hit - Testing Nuclear Flasks
http://www.FreeScienceLectures.com When nuclear fuel is sent from powerstations to reprocessing, a simple procedure is used which now has been carried out safely more than 14'000 times. The fuel rods are first cooled for at least 90 days at power statio Lastet opp av FreeScienceLectures, 2007-06-10 17:13 |
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Our View of the Universe
http://www.FreeScienceLectures.com The universe began with the big bang, and for the first four hundred thousand years all matter was ionised, indicated by the blue region in the diagram. When the universe had cooled enough to allow atoms to form, there Lastet opp av FreeScienceLectures, 2007-06-10 21:56 |
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HIV Replication and Life Cycle
http://www.FreeScienceLectures.com HIV replication is a complex multi-staged process that includes crucial steps taking place on the exterior as well as the interior of the target host cell. The first three steps involved in cell entry are termed attach Lastet opp av FreeScienceLectures, 2007-06-12 08:59 |
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Neutrophil Chemotaxis
http://www.FreeScienceLectures.com Human neutrophils are mobile cells that will quickly migrate to sites of injury to help fight infection. They are attracted there by chemical signals released by other cells of the immune system or by invading microbes. Lastet opp av FreeScienceLectures, 2007-06-12 10:03 |
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Neutrophil Chemotaxis Chasing a Bacterium
http://www.FreeScienceLectures.com Neutrophils are our body's first line of defense against bacterial infections. These cells can recognize certain chemicals and move to the source of these "chemoattractants" by migrating up the chemical concentration g Lastet opp av FreeScienceLectures, 2007-06-12 10:28 |
