Tag Archives: technical

Can we slow down the world?

Every now and again, I get a question, either by email, or in this case, via the facebook fanpage that’s fun, but not really appropriate for my column. Facebook and io9 mainstay Richard Henretta who asks: In the last 100 … Continue reading

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MOND, round 2b

I’m a bit concerned that the “wall of text” version of the MOND debate that appeared here would scare people away. Instead, I’ve made a separate page for it. It’s not for the faint of heart. -Dave

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MOND vs GR, round 2

As noted above, there used to be a huge chunk of a MOND-oriented debate here. However, I’m sure my typical reader isn’t looking for something anywhere that technical. If you are, check this out. -Dave

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MOND vs GR

I’ve written a number of posts about the observational evidence behind dark matter. In yesterday’s io9, Alasdair Wilkins wrote a provocative story about an interesting paper by University of Maryland Astronomer Stacy McGaugh. The paper is a study of 47 … Continue reading

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I get email, Part 2

I awoke this morning to one of the more charming pieces of email that I’ve gotten in some time.  I won’t quote it in its entirety, as it was incredibly long, but it was also packed with goodness.  A reader … Continue reading

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Another technical post – on time and constant acceleration

For those of you who missed it, a week ago I wrote a post in which I discussed how long it might take to get to the newly discovered exoplanet Gliese 581g.  There was a ton of interest from other … Continue reading

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A very technical post on matter-antimatter propulsion

There has been a ton of traffic based on a previous post that I wrote about an imagined trip to Gliese 581g.  A number of sources (Discover, slashdot, even io9 to some degree) seemed to suggest that I was optimistic … Continue reading

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Full Impulse on my mark… engage!

There has been a ton of chatter on the interwebs about yet another potentially habitable planet in the Gliese 581 system, approximately 20.5 light years from earth.  This one, Gliese 581g, was discovered by the Lick-Carnegie Exoplanet Survey using Keck.  … Continue reading

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LaTeX!

I try to not to write too many equations in this blog. If you want equations, after all, you can certainly read my papers. But every now and again, the discussion gets a bit technical, and I get an itch … Continue reading

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A1689 and Flexion

Warning! Technical. I wanted to alert you to a very nice paper that my former student, Adrienne Leonard (who has since gotten her Ph.D. at Cambridge and is now at Saclay), her former thesis adviser, Lindsay King, and I have … Continue reading

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