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Conference Report: SC15
Conference Report: SC15 My week in Austin started out cold and rainy. This last week, I had the privilege to attend the biggest annual supercomputing conference in north America, SC. I was one of about...
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Classical Tests of General Relativity
Classical Tests of General Relativity Figure 1. An abandoned steam engine with Einstein’s field equations painted on it. Image due to Jimmy Harris. Last Wednesday, November 25, was the 100 year...
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The Holometer
The Holometer Figure 1. A member of the holometer team works on the device. Image due to Fermilab. You may have heard the buzz about the holometer, shown in figure 1, before. It’s a giant laser...
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Book Review: Beyond the Galaxy
Book Review: Beyond the Galaxy Figure 1. The cover of Ethan Siegel’s new book, Earlier this year, I was asked to review Ethan Siegel’s, upcoming book Beyond the Galaxy, shown in figure 1. I got an...
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The Geodetic Effect: Measuring the Curvature of Spacetime
The Geodetic Effect: Measuring the Curvature of Spacetime Figure 1. A promotional image created by P. Eekels for Gravity Probe B (GP-B). It shows the GP-B satellite orbiting Earth in a spacetime...
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The Poetry of LIGO’s Gravitational Waves
The Poetry of LIGO’s Gravitational Waves Figure 1. The gravitational waves measured by LIGO (bottom) and a simulation of the astrophysical event that generated them (top). (Source: Astronomy Pic of the...
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The Black Holes that Created LIGO’s Gravitational Waves
The Black Holes that Created LIGO’s Gravitational Waves Figure 1. A simulation of the black holes whose mergers LIGO detected. Image due to the Simulating Extreme Spacetimes Collaboration. A little...
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The Direction of LIGO’s Gravitational Waves
The Direction of LIGO’s Gravitational Waves Figure 1. The most likely direction from which LIGO’s gravitational waves came, superposed on the night sky. Source: LIGO collaboration. On September 14th,...
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Dark Energy, Numerical Relativity, and Astrophysics
Dark Energy, Numerical Relativity, and Astrophysics The merger of two neutron stars in scalar-tensor theory, a modified theory of gravity. Image by Barausse et al. So I did an interview for the...
View ArticleThe Mathematics of Disease Modeling
The Mathematics of Disease Modeling As theCOVID-19 situation has unfolded, one thing that has helped me process what’s going on is a look at the basics of how experts are making predictions about the...
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