Sticky Quarks

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Sticky Quarks Yup, OK. Terrible joke. Pretty accurate, though: quarks are indeed “sticky.” So sticky, indeed, that they can’t separate themselves from each other. It is physically impossible to observe a single quark: they come in pairs or in threes … Read More

Black Hole Merger at LIGO

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The black hole merger at LIGO You’ve probably read it in the news: this Thursday, LIGO is going to announce it has detected a black hole merger. What is it exactly and how is it detected? A black hole merger … Read More

Electron Handedness

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  Electron handedness Would the mirror image of our universe behave in the same way as our universe? The short answer is “no”: particles that are “reflected” have slightly different properties than their counterparts, which means that our reflected universe … Read More

Forces Do not Exist

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  Forces do not exist Most people first hear about forces in high school, with Newton. But the reality is that forces do not exist. Instead, what we have is something similar to particle physics tennis: two particles exchange another one … Read More