When A times B isn’t B times A

Posted on 29/01/2011 by Jon Butterworth

Paul Dirac: The Matrix has you.

At The Guardian. See also Chapter 7.4 of Smashing Physics.

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Weak gravitational lensing and weak arguments

Posted on 23/01/2011 by Jon Butterworth

Bending of light by dark matter is a vital observational tool in cosmology. So if you are going to use cosmology to accuse financial institutions of a “blind faith in maths”, you might at least google it first.

At The Guardian.

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Twins and a tea pom-pom: mystery physics “answers”

Posted on 20/01/2011 by Jon Butterworth

At The Guardian.

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Today’s mystery physics for you to identify

Posted on 19/01/2011 by Jon Butterworth

Posted on The Guardian 19/1/2011.

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