Fake Astronomical Images

A friend of mine, the active amateur astronomer Colin Henshaw, brought the following photograph to my attention. It appears to show the Moon rising over Mossel Bay in South Africa. Although it was passed off as a genuine image, for reasons which Colin pointed out, it is a fake. If you study the Moon, it… Continue reading Fake Astronomical Images

Our Finely-tuned Universe Part I-Fundamental forces

This is first of a series of three posts in which I'll talk about the idea that the fundamental forces which govern our Universe and fundamental constants such as: the strength of gravity, the electric charge of the electron and the amounts of matter, dark matter and dark energy  in the Universe have been in… Continue reading Our Finely-tuned Universe Part I-Fundamental forces

The Lyrids 2022

The night of  22/23 April will be the peak of the Lyrids, one of the most famous prolific meteor showers. Meteors (also known as shooting stars) are bright streaks of light caused by small lumps of rock or metal called meteoroids hitting the Earth’s atmosphere at very high speed. As they pass through the atmosphere they get heated… Continue reading The Lyrids 2022

Overview of tides

Even though the Moon is far smaller and less massive than the Earth its gravitational field still has significant effects on our planet. The most noticeable of these are tides, the periodic rise and fall of sea levels. In this post I'll give an overview of the causes of tides. This is something which many… Continue reading Overview of tides

Reducing global carbon dioxide emissions

In early November 2021 much of the world’s media was focussed on the Glasgow Climate Change Conference (also known as COP26). As most of you will know, its key objectives were to get individual states to commit to reduce their greenhouse gas emissions, to end deforestation and to plan to move away from fossil fuel… Continue reading Reducing global carbon dioxide emissions