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Many short videos on a large range of topics

Very simple video about seeing and light. 

Cool video that shows how a can of coke will sink in water but a can of diet coke wont due to the differences in the amount of sugar in the cans.

" Dim Lights Share a clea.nr URL: Hide Comments, Favorites, Suggested Videos, etc. There is a common perception that weight and mass are basically the same thing. This video aims to tease out the difference between mass and weight by asking people what makes a car difficult to push. The standard answer is that it is difficult to push because it's heavy. But heaviness is a measure of weight, the gravitational pull of the Earth attracting the car to Earth's center. When the car is pushed on a flat road, the force of gravity does not oppose the motion. Instead the resistance felt is an indication of the car's mass which determines its inertia. Inertia is the property of matter that means it tends to resist acceleration - the greater the mass, the less the acceleration for a given amount of force. Subscribe 109 videos 32,519 Like Add to Share Uploaded by 1veritasium on Feb 7, 2011 There is a common perception that weight and mass are basically the same thing. This video aims to tease out the difference between mass and weight by asking people what makes a car difficult to push. The standard answer is that it is difficult to push because it's heavy. But heaviness is a measure of weight, the gravitational pull of the Earth attracting the car to Earth's center. When the car is pushed on a flat road, the force of gravity does not oppose the motion. Instead the resistance felt is an indication of the car's mass which determines its inertia. Inertia is the property of matter that means it tends to resist acceleration - the greater the mass, the less the acceleration for a given amount of force. 320 likes, 14 dislikes Show more Uploader Comments ( 1veritasium ) Actually, it is the friction which is causing difficulty in moving the car. Ideally if there is no friction, whether rolling or sliding, even the slightest of the force would make the car move. You could actually be able to move the car with a push of your little finger if there is no friction at

Vid Description:"This scene from PBS's NOVA program, Episode "Einstein's Big Idea," demonstrates Albert Einstein's use of "thought experiments" to help visualize complex ideas at the forefront of science. This scene also shows Einstein as a young, passionate visionary, rather than as the stale, gray old man he is universally known as today." Students wanted to see the whole movie...please let me know if you come across it.

Fun, interactive, research-based simulations of physical phenomena from the PhET project 

Ghost Productions is a 3D medical animation studio that specializes in promotional marketing, surgical technique, and surgeon and patient education. Great for Biology and Senior Science.

Good for HSC Biology - Search for Better Health - Quarantine