成人快手

Supporting Content

• The Big Bang machine — The Six Billion Dollar Experiment

  Duration: 3:43

• The distant Universe — The Six Billion Dollar Experiment

  Duration: 5:12

• Cosmic microwave background radiation discovered — The Six Billion Dollar Experiment

  Duration: 5:41

• Isaac Newton and gravity — What on Earth is Wrong With Gravity?

  Duration: 2:58
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