Harry_Cliff - voiced quotes and phrases (Talkycards)

Harry Cliff

This is the essential problem: the universe is far, far too interesting. Relativity and quantum mechanics appear to suggest that the universe should be a boring place. It should be dark, lethal and lifeless.

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Why is there something rather than nothing?

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General relativity is unquestionably Einstein's masterpiece, a theory which reveals the workings of the universe at the grandest scales, capturing in one beautiful line of algebra everything from why apples fall from trees to the beginning of time and space.

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Quantum mechanics, a mind meltingly strange yet stunningly successful new way of understanding the microworld, the world of atoms and particles.

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But when we look around us, we see we live in a universe full of interesting stuff, full of stars, planets, trees, squirrels. The question is, ultimately, why does all this interesting stuff exist?

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The Higgs field gives mass to the fundamental particles that we're made from. If it wasn't there, those particles would have no mass, and no atoms could form and there would be no us.

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The universe began as a rapid expansion of space and time thirteen point eight billion years ago, the Big Bang.

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According to early versions of the Big Bang theory, the universe has been expanding ever since with gravity gradually putting the brakes on that expansion.

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Astronomers made the stunning discovery that the expansion of the universe is actually speeding up. The universe is getting bigger and bigger faster and faster driven by a mysterious repulsive force called dark energy.

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We don't know what dark energy is, but the best idea is that it's the energy of empty space itself, the energy of the vacuum.

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