Tag Archives: Einstein

Episode 4: light as guide to the universe

Today’s focus is how photons – the particles of light – help us learn about gravitational systems such as stars orbiting planets, or indeed the dynamics of the entire cosmos. We kick off Episode 4 by describing how knowledge of … Continue reading

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Episode 3: Newton, Einstein and Relativity

Today we begin discussing gravity in detail, by introducing Isaac Newton’s incredible insight of over three centuries ago that the very same gravity force is responsible for the motions of celestial bodies and for the motions of human scale objects … Continue reading

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