The world is one tiny piece within a vast universe – so vast that I, at least, can scarce comprehend it. The world we inhabit is one planet within a solar system . . . within a galaxy . . . within the universe. Our sun is just one of between 200 billion and 400 billion stars in the Milky Way galaxy, and earth is just one of at least 100 billion planets. There may also be ten billion white dwarfs, a billion neutron stars and a hundred million black holes. And that is just one galaxy out of possibly two trillion galaxies! …
Most nights I consider it a clear night if I can see Orion and the Big Dipper, and it is a sad reality that most of us are seldom in places that are dark enough at night for us to enjoy the stars in all their splendour. In fact, light pollution is now so bad that more than one third of the human population is no longer able to see the Milky Way. In Chapter One we reflected on NASA’s ‘black marble’ images, realizing that the earth at night is electric with lights criss-crossing across the globe.… Continue reading →
Some scientists are driven by answering questions about how the world works, and others are more interested in applying that knowledge to new problems. Before I interviewed Mike Clifford, I knew him as an engineer who works on appropriate technology at the University of Nottingham. What I found was that he is actually committed to both very technical mathematically-based research, and developing simple solutions to pressing problems. Our meeting was at a Christians in Science conference, and Mike is another example of someone whose faith and work are not so much complementary as indistinguishable.
I chose to study engineering at university because I wanted to do something practical. I was told that I would enjoy a combination of physics and maths, but I found myself enjoying beautiful equations more than anything else, so I rebelled and went on to do a PhD in maths. After several years doing computational modelling and braid and knot theory, I got a job modelling traffic pollution in an architecture department. That was followed by a project on chaotic mixing, and another on composite materials.
I could have easily stayed on the pure side of maths, but I rediscovered my desire Continue reading →