Tag: physics
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On the use of ChatGPT in academia
Creation is a sacred act. From the profundity of making a new life to the mundanity of whistling a tune through one’s teeth whilst doing the washing up, human life is filled from end to end with acts of creation. So smitten with creativity are we that we would love to see our own creations…
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For once, then, something
For the past year, I have been stuck in a research slump. One year ago, I started applying for jobs; and with fellowship applications in the mix too, the whole period from October to December disappeared into the mire of proposals, cover letters and research statements. When I emerged after Christmas, it was into the…
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Cosmology’s first century
A guided tour of the Universe from Einstein to JWST It was a great pleasure to be invited to the Charlbury Beer Festival in June 2023 to give a talk in the culture tent. The topic I chose to discuss was gravity, and more specifically how our best theory of gravity, Einstein’s theory of general…
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Cosmic variance
Or, everyone in the world is French M. Luc Arnaud farmed a small plot somewhere in the south of France. Exactly when and exactly where M. Arnaud’s farm was is now no longer remembered, but we can be sure that he had a few cows, a few pigs, a few chickens and one rather moth-eaten…
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Measuring line-of-sight shear with Einstein rings
Today I released a paper written in collaboration with Pierre Fleury, Julien Larena and Matteo Martinelli on how we can measure line-of-sight shear from Einstein rings. But what is line-of-sight shear, and why are we interested in measuring it in the first place? To answer these questions, let’s review the phenomenon of strong gravitational lensing.…
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Why I have a website (and why you should too)
Academics can often be rather squeamish about self-promotion. I myself am not a fan of writing endless cover letters and research statements where I have to act as the sole and assiduously devoted marketer and salesperson for the brand that is Natalie B. Hogg: CosmologistTM. But the squeamishness, and the attendant procrastination that can turn…
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The howling Universe
Before I moved from IFT to IPhT, I filmed a video all about what standard sirens are and why they’re useful for cosmology. The video is now on Youtube, in English with Spanish subtitles. Take a look!
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Implicit none
The first programming language I ever learned was Fortran. And before you ask, no, I’m not seventy years old. It just so happened that during my undergraduate degree, I took two courses on numerical methods for physics which were taught in Fortran, and for good reason: Fortran is still one of the best languages to…
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My first N months as a postdoc (where 0 < N < 12)
How long have I been a postdoc? It’s a little difficult to quantify. I finished my PhD thesis in December 2020, and submitted it in January 2021. I passed my viva in February 2021. I spent a few months climbing the walls waiting for my Spanish visa, and trying to do research at the same…
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My PhD viva
In this post, I’ll discuss how I prepared for my PhD viva exam in cosmology, what the viva itself was like and what happened next. I submitted my PhD thesis on the 4th of January 2021 (which also happened to be my birthday) and had my viva exam on the 3rd of February. This is…
Natalie B. Hogg 