The Big Bang theory predicts that there was a powerful repulsive force at the beginning of the expanding of the Universe. A common hypothesis of the cause of the Big Bang is a short-term repulsive field, the so-called “inflanton”. Observations of supernovas have shown that the Universe is still expanding with acceleration.
The Large Hadron Collider (LHC) at CERN has already delivered more high energy data this year than it had in 2015. If any new particle were found, it would open the doors to bright new horizons in particle physics.
Some eight years ago I sat down to draw out a blueprint for a book that should tell stories about how the chemistry of individual elements of the periodic table had changed, for better or for worse, the courses of ordinary peoples’ lives. Several things motivated me; I was sitting on a number of stories where literature and history intersected with chemistry that I would love to tell to a bigger audience
So, what is crystallography? Put simply, it is the study of crystals. Now, let’s be careful here. I am not talking about all those silly websites advertising ways in which crystals act as magical healing agents, with their chakras, auras and energy levels. No, this is a serious scientific subject, with around 26 or so Nobel prizes to its credit. And yet, despite this, it remains a largely hidden subject, at least in the public mind.
I guess the funniest thing I ever saw was a person driving down the highway in a Toyota Prius smoking a cigarette with the windows closed. It was like they were telling me, “I respect your atmosphere but not mine.” That got me thinking, does human generated, gaseous, atmospheric pollution actually make up a significant part of the total atmosphere, and can it possibly affect it?
Philosophers of science are in the business of explaining the special features of science, like the unifying power of scientific explanation and the wonderful sense of understanding it produces. We try to explain the amazing success of modern scientific theories, the structure of inductive inference in the science, and extract systematic positions – like realism, constructivism, and empiricism – from the evidence of theoretical success.
Whilst learning about the planets in our Solar System, and then hearing all that has befallen them in the news over the past decade, have you ever wondered which one you might best get on with? Or which planet you would be? We certainly have, which is why we’ve created the quiz below, to help you find out.
Proving to be both varied and fascinating, moons are far more common than planets in our Solar System. Our own Moon has had a profound influence on Earth, not only through tidal effects, but even on the behaviour of some marine animals. But how much do we really know about moons?
Golf balls curve in flight for one principal reason: Namely that the golf club face is not square to the path being followed by the club head as it impacts the ball. This is illustrated in the figure where the club face is “open” to the club path by about four degrees. This is sufficient to produce a significant slice to the right.
When people think of evolution, many reflect on the concept as an operation filled with endless random possibilities–a process that arrives at advantageous traits by chance. But is the course of evolution actually random? In A World from Dust: How the Periodic Table Shaped Life, Ben McFarland argues that an understanding of chemistry can both explain and predict the course of evolution.
Einstein has had a good month, all things considered. His century-old prediction, that the very fabric of space and time can support waves travelling at light-speed, was confirmed by the LIGO collaboration. More, the bizarre and horrifying consequences of his theory of gravity, the singularly-collapsed stars that came to be called ‘black holes’, have been directly detected for the first time.
What was our solar system composed of right after its formation? Using sophisticated computer simulations, researchers from France and Australia have obtained new insights into the chemical composition of the dust grains that formed in the early solar system which went on to form the building blocks of the terrestrial planets.
The remarkable detection of gravitational waves by the LIGO collaboration recently has drawn much attention to the fundamental and intriguing workings of gravity in our universe. Finding these gravitational waves, inferred to be produced by merger of two stellar mass black holes, has been like listening to the very distant sound of the universe.
This blog post concerns a virtually unknown chemist, John David Main Smith, who contributed a significant piece of research in atomic physics in the early 1920s at the time when knowledge of the field was undergoing very rapid changes. Main Smith is so little known that I had to search far and wide for a photograph of him before finally obtaining one from his son who is still living in the south of England.
In Rome on 22 June 1633 an elderly man was found guilty by the Catholic Inquisition of rendering himself “vehemently suspected of heresy, namely, of having held and believed a doctrine which is false and contrary to the divine and Holy Scripture”. The doctrine in question was that “the sun is the centre of the world and does not move from east to west, that the earth moves and is not the centre of the world.
Does this even make sense? Doesn’t quantum mechanics involve advanced esoteric mathematics? Didn’t Richard Feynman say that nobody understands quantum mechanics, and Niels Bohr remark that those who aren’t shocked by quantum mechanics can’t possibly have understood it?