Updated 23 November 2025 Definition The term "the acid test", to test the real worth of something, is widely used. The definition and example given in the Cambridge On-line English dictionary are succinct: The true test of the value of something. It looks good, but will people buy it? That's the acid test. The origin… Continue reading Understanding ‘The Acid Test’: Its Scientific Roots
Author: Steve Hurley
Hi I am Steve Hurley. Although I work in the IT industry. I studied for a PhD in astronomy in the 1980s. My real passion is explaining scientific concepts to a non-scientific audience. My blog (explainingscience.org) covers various scientific topics, but primarily astronomy. It is written in a style that it is easily understandable to the non scientist.
Publications and videos
For links to my books and videos please visit www.explainingscience.org
How Would We Get to Enceladus ? (a brief overview)
Updated 10 December 2025 This post continues my previous two posts on Saturn's icy Moon Enceladus which many scientists now believe is the most likely place in the solar system, other than the Earth, to harbour life. and discusses how we might get there Image from NASA There are two possibilities . (a) the… Continue reading How Would We Get to Enceladus ? (a brief overview)
Enceladus what kind of life ?
As stated in my previous post NASA's Cassini probe has shown that Saturn's moon Enceladus not only has an thin atmosphere, but that volcanoes of water are erupting from its surface into space. Even more remarkable has been its discovery, that these volcanoes contain the raw chemicals which are the building blocks for life. Image from NASA The question which really… Continue reading Enceladus what kind of life ?
Enceladus -Could there be life?
Welcome Hello and welcome to the first post from the Science Geek. I intend to write a weekly blog about various topics of interest, which will cover all aspects of science. The articles will be aimed at the non scientist and won't require any previous scientific knowledge. I hope you enjoy reading them and please feel… Continue reading Enceladus -Could there be life?
Explaining Science 