Showing results for: Math & Physics

Meter is the standard unit of length used by most countries around the world. But how did they define it? (4:44 min.)

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How can we learn about the galaxies beyond our own? It all begins with light - the kind we see and the kind we can’t. (4:45 min.)

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There's a saying that "it's not the volts that kills you, it's the amps" and while that's true in a way, you can't have amps without volts and skin resistance plays a big part too. (5:15 min.)

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Go to any paint store or nail-polish shelf and you’ll see a dozen or so variations of the color black. Even inside a crayon box, there are a lot of shades. But what is the blackest black out there? (3:22 min.)

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When we look at the sky, we have a flat, two-dimensional view. So how do astronomers figure the distances of stars and galaxies from Earth? (5:29 min.)

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In this winning entry for the 2014 Flame Challenge Physics Girl explains the mystery of color. How we see colour is very complicated and involves wavelength, reflection, signals and perception (3:50 min.)

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When we measure things, most people are only worried about how accurate, or how close to the actual value, they are. Matt Anticole explains what exactly precision is and how can help us to measure things better. (4:52 min.)

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Scientists have found thousands of planets that orbit other stars, just like Earth orbits the Sun. Some of them might even be able to support life.

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This resource provides educators with the tools to help them take students from their initial thinking about careers to a deeper understanding of the variety of careers available.

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Is the construction of a space elevator viable? Or is it science fiction? This video addresses what a space elevator would like, what it could be made of and the challenges involved in building one. (5:25 min.)

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