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...energy must exist? This album is an introduction to The Open University course S383 The relativistic Universe... The Relativistic Universe An introduction to this album Telescopes and the universe's evolution The latest technology can look almost all the way back to the Big Bang, and may soon identify the first stars and galaxies Cosmic Microwave Background radiation The...

...energy is the only way to secure a sustainable future. This material forms part of the course S278 Earth's physical resources: origin, use and environmental impact... Fossil Fuels An an introduction to this album Declining Oil and Gas Reserves How long have we got before all the Earth's fossil fuels are depleted? What will happen to gas prices when the North Sea gas...

...energy levels, and an increased desire to spend time outside and to see friends and family. But why is this?...Find out more about The Open University's Health Sciences courses and qualifications. For many people in the Northern hemisphere, the colder and shorter days of the winter months can be a more challenging time of the year and the arrival of spring brings a...

...energy, thanks to E = mc²) follow these straight paths in curved space. The experimental proof of this occurred during a solar eclipse in 1919 where starlight was observed to be bent by the sun. The amount of bending was predicted by Einstein, and not by the standard “Newtonian” theory. So matter follows the curvature of space, but we know matter is the source of...

...energy efficiency of new buildings has improved, and emissions per square metre have been reduced. However, we replace our building stock in Europe very slowly, at less than 1% per year. This means over 80% of our existing building stock will still be standing in 2050. Regulation on the whole still ignores embodied carbon impacts (although this has recently been debated...

...solar system. A chaotic universe A mistake in calculations leads to a revolutionary discovery. The power of computers The benefit of using a computer for iteration calculations. The lure of fractal images Mathematicians have been fascinated with creating fractal patterns on a computer. Natural mathematics How close examination of a fern reveals the geometry of fractals....

...energy in joules and electric current in amperes. A detailed understanding of these units is not needed yet, and would make a rather dull start to this course. In the few places where units appear, please skip past them if the meaning is unclear. Many physical quantities span vast ranges of magnitude. Figures 1 and 2 use images to indicate the range of lengths and times...