Two views on gravity Part 1: Particle Zoo

Two views on gravity Part 1: Particle Zoo

For the past couple of weeks I’ve been busy teaching particle physics to two very different populations. First I work with working with little kids through the Davidson Institute, going over the ins and outs of making atoms. Then I took on particles again with my physics for poets class at SIUE. Between the two, its forced me to do a lot of thinking, and has reminded me how annoying gravity can be. Here’s the problem: Einstein taught us that gravity is a manifestation of the geometry of space and particle physics says gravity comes from the exchange of bosons called gravitons that communicate the force of gravity, which is related to mass which is mediated by the hitherto undiscovered Higgs. These particles couple particles force us to stare at two...

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Astrology vs String Theory

Astrology vs String Theory

dragon.gifThe scientific method requires good scientific theories to build theories based on observations/experiments that make specific predictions about the outcomes of future observations/experiments. It’s okay if we don’t currently have the technology to make an observation. Theories are perfectly capable of sitting on shelves waiting to be proven right or wrong. What matters – what makes the theory science – is that the theory is eventually provable (or disprovable).

So, how do I deal with string theory?

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