Author Archives: Dave

Best. Class. Ever.

Credit: me. A simple 1-d simulation of a complex scalar field in an electric field. You’ll find this more instructive after you’ve read the lecture notes. Click on the link if it doesn’t auto play in your browser. This term, … Continue reading

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Cosmos

By now, you’ve either seen the first episode of the new Cosmos or you’re not going to. The nerdverse has been breathless with anticipation for months now, and now that it’s here, the reviews are… pretty good. I don’t make … Continue reading

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Does it make sense?

A question from a reader: My dad always told me, after finishing a math problem for homework, ‘look at the answer and ask your self ‘does this answer make sense’” So, my question is: do the answers we get from … Continue reading

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Probability for Students

I’ve had a lot of students over the years, and I’ve realized that even those who’ve taken a probability and statistics class often lack a gut feeling intuition about how to deal with data. I’ve written a (first draft, admittedly) … Continue reading

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Goings on

Greetings, internet. I’ve got a few posts in the queue on the potential dangers of colliding with a star in your warp drive and such like, but I wanted to give update on a couple of really exciting interviews this … Continue reading

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Talks around town

I hope everyone has enjoyed the holidays. I’ve been hibernating, but I’m back now, and I’ve got a bunch of talks and events over the next few weeks, in addition to a new term. Wednesday, January 8, 9pm EST at … Continue reading

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Christmas Time is Here!

And what better time to pick up one of New Scientist’s Top 10 (12?) Science Books of the Year for yourself or for someone you love. I’ve prefer you choose mine, but they’re all good. Symmetry Magazine also has a … Continue reading

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A Technical Post – On more than 3 dimensions

I’ve made the occasional passing comment about how fortunate we are to live in a 3-dimensional universe. In an old ““Ask a Physicist” column (in a precursor to a fairly important discussion in my new book) I dropped a little … Continue reading

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Ask a Physicist: When will the Universe End?

Just in time for Halloween, I bring you my eschatology special: a detailed discussion of the future timeline of the universe, and how neither we nor our robot or photonic progeny are going to get to enjoy it indefinitely. It’s … Continue reading

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I get mail: Dark Energy, The Expanding Universe, and Noether’s Theorem

You know I love getting mail. I like getting questions, brain-teasers, compliments, or in rare cases, all three. Not every question is right for my “Ask a Physicist” column over at io9, either because it’s a bit too specific or … Continue reading

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