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First observed by Pierre Janssen during a solar eclipse in 1868, helium is the second lightest of the chemical elements. In the second of my Elements of the Periodic Table series, the essential facts, history and uses of helium are examined, including its use as a coolant in the Large Hadron Collider (LHC) Continue reading Helium Discovered by Henry Cavendish in 1766, hydrogen is the lightest and most abundant of the chemical elements. In the first of a series of articles about the Elements of the Periodic Table, I set out to investigate the essential facts, history and uses of hydrogen. On the way I look at hydrogen’s stable Continue reading Hydrogen
An AquaPenguin in action For engineers and scientists working in the field of biomimetics the natural world is a source of inspiration. New products are being developed incorporating technology created by mimicking shapes, structures and processes found in living creatures. The buildings, vehicles and products of the future will benefit from millions of years Continue reading The Future of Industrial Robotics: Penguins J. R. R. Tolkien (1892-1973) was an English writer and academic with a love of languages. His interest in myths and legends brought us The Hobbit, The Lord of the Rings and the many races of Middle-earth. These stories made him the father of the fantasy genre. (This article was originally published at Quazen.com
Continue reading Biography of J. R. R. Tolkien Occasionally, while browsing the shelves of a local book shop, a book title will stand out for no other reason than its ability to raise a smile. The content of these books may be quite ordinary but the title serves its purpose by grabbing our attention. For the past 30 years these odd book Continue reading Diagram Prize Celebrates Odd Book Titles Over 2000 years ago, a city was carved from the sandstone rocks of the Shara mountains. Petra was the home of the Nabateans, who occupied the valley when the Edomites moved west. The Nabateans grew wealthy from the caravan trade and Petra became a rival to Rome. But, as with so many ancient civilizations, Petra fell into decline and passed into Roman, and then Byzantine, hands, before disappearing from all records by the end of the 13th century. For the next 500 years, the only people to set foot in the city were local Bedouins. Continue reading Petra, Jordan In the modern world, our lives are controlled by the clock to higher levels of precision than ever before. But how many of us stop to think why we divide time into such peculiar units? Why are there 60 minutes in an hour and 24 hours in a day? In this article, from earlier Continue reading Why are There 60 Minutes in an Hour? Paul Revere (1735-1818) was a silversmith and engraver who became an American folk hero after his midnight ride to warn patriots of impending British troop movements. (This article was originally published at Socyberty.com on 14 November 2008.)
Paul Revere by J S Copley 1768 Paul Revere’s life as a silversmith and engraver was changed Continue reading Biography of Paul Revere Sir Christopher Wren (1632-1723) is best known as the architect of St Paul’s Cathedral in London. There is, however, more to Wren than one famous building. Continue reading Biography of Sir Christopher Wren Hello and welcome to my little corner of the world wide web. I’m Gary Wallace, a writer based in the United Kingdom. My interests are many and varied, and this is reflected in my choice of writing subjects, but I have a passion for history so you will see a bias towards historical biographies Continue reading Welcome |
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Copyright © 2008-2012 Gary Wallace - All Rights Reserved |
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