Wednesday, 12 December 2012

A video clip that caught my attention



Birth of a black hole


This video is about astronomers discovering the source of gamma ray bursts.

Things learned from this are:

 .A gamma ray burst may have been the reason for a mass extinction 440 million years ago.

.A gamma ray burst one one of the most powerful things in the universe.

stars resist gravity by producing photons

1 comment:

  1. Ze Feng

    The video is missing - not embedded.
    Try copying the codes and embed it under the "HTML" mode.

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