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4gravitons.com | ||
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profmattstrassler.com
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| | | | | There's been a lot of chatter lately about a claim that charm quarks are found in protons. The evidence is by no means entirely convincing yet, but it might be sort of true. But it sounds confusing. A charm quark has a larger mass than a proton does! Hmm. Well, here's a related question: what... | |
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profmattstrassler.com
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| | | | | [This post is a continuation of this one from Monday] Coming to Terms Before we continue, a little terminology --- trivial, yet crucial and slightly subtle. Think about the distinction between the words "humanity" and "a human" and "humans"; or "higher education", "university" and "universities"; or "royalty", "king" and "kings". In each case, the three... | |
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profmattstrassler.com
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| | | | | No theoretical physicist is surprised by the news that anti-atoms, just like ordinary atoms, fall down under the Earth's gravity. Here's why. | |
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spyder.wordpress.com
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| | | yes I do. That draft was created just after I joined twitter, and in the details I had written that I had just passed 400 tweets. I'm now closing in on 13,000. I am, however, in the process of scaling back my twitter and Facebook usage - I identified last week that as I reduce... | ||
