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2022-02-23: Are Cosmic Strings Cracks in the Universe?

  • 00:58: ... sort of  get ironed out, a little like how the complex   crystal structure of ice dissolves when it melts.  It seems pretty certain that in ...

2020-12-08: Why Do You Remember The Past But Not The Future?

  • 02:55: ... embedded glassy grains, and those grains recall ancient heat in their crystal structures. ...

2020-04-07: How We Know The Earth Is Ancient

  • 09:33: ... Some crystals like zircon tend to incorporate uranium atoms into their crystal structure when forming, while at the same time repelling lead. So any lead you ...

2017-09-28: Are the Fundamental Constants Changing?

  • 13:55: I mean, crystal structures diffract x-rays.
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