The Goldbach conjecture, posed in 1742, asserts that every even number greater than 2 can be expressed as the sum of two prime numbers. Despite exhaustive verification for even numbers up to four quadrillion, no proof exists for all even integers. A million-dollar prize for a solution remains unclaimed.
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
The Science Geek is now Explaining Science
When I started my Science Geek blog back in April 2014, I never expected it still to be up and running five years later. Over these five years its popularity has gradually increased, and I now have around 2,300 followers. However, after five years of blogging I feel now that it is time for… Continue reading The Science Geek is now Explaining Science
12-13 August 2019 – the Perseids
For revised post containing more tips on how to view the Perseids see The Perseids 2021. 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 a very high speed (in the case of the Perseids around 200,000 km/h). As… Continue reading 12-13 August 2019 – the Perseids
Apollo 11 lunar landing
20 July 2019 is the fiftieth anniversary of the first manned landing on the Moon. Mission Insignia of Apollo 11- Image from NASA On 21 May 1961 President John F Kennedy made the following address to the United States Congress: 'I believe that this nation should commit itself to achieving the goal, before this decade… Continue reading Apollo 11 lunar landing
Summer twilight
This explains the stages of twilight , and describes how the Sun's path changes throughout the year in Manchester, England. The phenomenon of "Simmer Dim" in the Shetland Islands is highlighted, characterized by continuous twilight and celebrated with a festival.
Explaining Science 