SAM MORRELL

Web Development for Physicists

I’m fortunate enough to be sitting at the intersection of two disparate fields which are rapidly hurtling towards each other. More than ever, it’s becoming important to publicise you and your research, whether you’re in academia or in the private sector. Sooner or later, this is likely going to mean you’re going to requiring some...

About Me

I am a Research Fellow at the University of Exeter, currently applying my training in astrophysics to help better understand, and hopefully begin to solve, the pressing ecological crisis caused by artificial light at night (ALAN). I lead the development of our Monte Carlo Radiative Transfer model, whose outputs we correlate with measurements of animal...

Remember to look up at the stars and not down at your feet: A tribute to Stephen Hawking

There are a couple of books I can honestly say inspired me to be an astronomer. In college, junior / senior year in high school for those in the USA, I had absolutely no idea what I wanted to do after I’d finished my A-levels. However, years of watching Star Trek and vivid memories of...

Beginning with BibTeX – Making Referencing in LaTex as Easy as Pi

[mathjax] It’s no secret that physicists love using LaTeX to write papers. This has many practical advantages, such as the ability to completely unlink your content from the formatting, very flexible layout tools and a veritable smorgasbord of packages to do everything from change the colour of your text to allow you to programmatically create plots...

Dr Sam Morrell Researcher in Light Pollution and Astrophysics University of Exeter I'm a postdoctoral researcher at the University of Exeter, in Devon, UK. I was trained as an astrophysicist, and my astrophysical research interest spans studies of young clusters, stellar evolution, and exoplanet science. In my current position, I am bringing my expertise as...

Rainbow in a Box

Yesterday, I helped out at the physics department with a visit for a local sixth form. The basic idea was that in the morning the groups of students got a tour around the building and then in the afternoon they would get involved in a load of experiments. I was assigned the job of looking after...

About Me OLD

I'm a postgraduate astrophysicist working in the astrophysics group at the University of Exeter. My PhD project, under the supervision of Professor Tim Naylor, involves studies of planet forming stars. In this project we hope to be able to observationally study the mechanisms of planet formation around young stars in an attempt to validate current theory. I also...

The Fluid Mechanics of Planetary Atmospheres

In my last post I went over a really powerful bit of physics called fluid mechanics, which describes the flow of fluid through a system. The main equation in this framework is the momentum equation; the Navier-Stokes equation.This equation is nye on impossible to solve analytically in it’s full grotesque glory, so in the last post I discussed some of...

Radiative Transfer in Planetary Atmospheres: An Overview

A little while ago I got carried away on a little post which discussed a really cool little bit of physics called radiative transfer. As I said then, radiative transfer is a technique that you can use to study how energy, in the form of electromagnetic radiation, moves through material. In that post, which you can...

Gambling with Statistics – Monte Carlo Methods

Hey all! In my recent work I’ve been using numerical simulations involving radiative transfer, which basically  means transferring energy via radiation such as light; in the form of photon packets. The way these simulations are run is via a method known quite widely in the physics world called ‘Monte Carlo Methods’. It took me a...