For most of human history, the distant ‘celestial sphere’ was regarded as perfect and unchanging. Stars remained in place, planets moved predictably, and the few rogue comets were viewed as atmospheric phenomena. This began to change with the Danish astronomer Tycho Brahe’s observation of the supernova of 1572 – apparently, a new star – and his studies of the Great Comet of 1577, which he proved was actually a distant object. Nonetheless, the impression of permanence is strong. There are very few astronomical objects that noticeably vary to the naked eye: only the brightest comets, novae and supernovae. For observers in the northern hemisphere, the last naked-eye supernova was in 1604.Continue reading What high-speed astronomy can tell us about the galactic zoo
Smart technology may have started as a way to make modern life more convenient, but it has significant potential to help us conserve resources and address environmental problems, too. Humans are undoubtedly having a huge impact on the planet, and technology is both a cause and a possible solution to the damage we’re doing. From small-scale changes in individual homes to large-scale efforts such as recycling carbon dioxide and carbon capture storage, it is possible to create systems of technology that work with, not against, the environment.Continue reading Smart Technology: Protecting Your Home and Saving the Planet
New and developing technologies like artificial intelligence, robotics, and virtual and augmented reality (among others) are really cool. We love to see how robots can differentiate between objects, artificial intelligence can assist psychologists, and virtual reality can allow us to enter new worlds. But how can today’s youth reap the benefits of these amazing technologies in their everyday lives to prepare them for their future?Continue reading 7 Ways New Technologies are Preparing Our Youth for the Future
The alternating current motor was invented by Nikola Tesla over 100 years ago, paving the way for the Teslas and other electric vehicles (EV) we see today. Many hope that this sustainable energy source will eventually replace traditional internal combustion engines and drastically reduce the amount of carbon emissions around the world.Continue reading Inside an electric car
March 22, 2019, is World Water Day. Water is a basic human right. According to the United Nations, Water scarcity affects more than 40% of people (40% !) around the world, and this is projected to increase with the rise of global temperatures. Providing clean water and sanitation for all is a huge challenge.Continue reading World Water Day 2019: what’s space got to do with it?
As early as prehistoric times, humankind was fascinated by the night sky and all of its beauty. For centuries, philosophers and scholars would attribute magical properties to the bright stars and the Milky Way. In more recent times, we understand better what these mysterious objects are, and we can observe far more than our ancestors – planets, clusters, galaxies, and nebulae.Continue reading 25 Amazing Astronomy Facts
As I scuba dive in Oslob Bay off Cebu Island in the Philippines, I see a tiny shadow dart over the surface of the spherical coral block – a minute fish, a goby of the genus Eviota, among the smallest vertebrates in existence, only about a centimetre long and less than 1/10th of a gramme light. It’s about a million times smaller than myself, with the same basic vertebrate body: a spinal cord, a bony skull, a brain, kidneys and a liver. With the exception of gills and lungs, the tiny fish and I share similar sets of organs, just at a very dissimilar size.Continue reading Is bigger always better, or will the tiny inherit the Earth?
Saving energy in today’s digital world is sometimes nigh impossible. Anything you want to do has something to do with electricity in terms of powering your computer or giving you access to the internet.
But how can you create an eco-friendly life routine with energy saving in mind? You can save energy and keep doing everything you have been doing so far, in a slightly changed, greener way.Continue reading How to keep your life routine in energy-saving rhythm?
On 11 January 1672, the Fellows of the British Royal Society were treated to a demonstration of Isaac Newton’s reflecting telescope, which formed images with mirrors rather than with the lenses that had been used since the time of Galileo. Afterward, the fellows hailed Newton as the inventor of this marvelous new instrument, an attribution that sticks to the present. However, this linear historical account obscures a far more interesting, convoluted story. Newton’s claim was immediately challenged on behalf of two other contenders, James Gregory,