All radiation is not created equal! This video from the US National Defense Education Program explains the difference between ionizing and non-ionizing radiation and how we can detect and measure radiation.

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Learn about microwaves, what they do, how they help us understand our universe and how they support the big bang theory!

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Did you ever wonder about your place in the universe? The Hubble Space Telescope can help you think about that, and shows us that there is no such thing as 'empty space.'

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Microwaves, the big bang, and other secrets of the universe; what else could you want in a video?

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That mysterious and useful little box in your kitchen- the microwave - is a marvel of modern science and engineering.How does something so complicated help you heat up leftover pizza with the touch of a button?

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