A Primer On Today’s Events

The obvious questions and their brief answers, for those wanting to know what’s going on today. If you already know roughly what’s going on and want the bottom line, read the answer to the last question.

You may want to start by reading my History of the Universe articles, or at least having them available for reference.

The expectation is that today we’re going to hear from the BICEP2 experiment.

  • What is BICEP2?

BICEP2, located at the South Pole, is an experiment that looks out into the sky to study the polarization of the electromagnetic waves that are the echo of the Hot Big Bang; these waves are called the “cosmic microwave background”.

  • What are electromagnetic waves?

Electromagnetic waves are waves in the electric and magnetic fields that are present everywhere in space.  Visible light is an electromagnetic wave, as are X-rays, radio waves, and microwaves; the only difference between these types of electromagnetic waves is how fast they wiggle and how long the distance is from one wave crest to the next.  

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My New Articles on Big Bang, Inflation, Etc.

I haven’t written in detail about the history of the universe before, but with an important announcement coming up today, it was clearly time I do so. Let’s start from the beginning. How did the universe begin? You may have heard that “the Big Bang theory says that the universe began with a giant explosion.” … Read more

Getting Ready for the Cosmic News

As many of you know already, we’re expecting some very significant news Monday, presumably from the BICEP2 experiment.  The rumors seem to concern a possible observation of “B-mode polarization in the cosmic microwave background radiation”, which, to the person on the street, could mean: strong evidence that inflation occurred in the early universe, strong evidence … Read more

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