What is Energy?...
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A Simple Guide to Energy and Thermodynamics
These days everyone seems to be talking about energy, whether it’s the rising cost of electricity, gas and petrol, carbon costs and offsets,...
All About Embodied Energy
We’re all fairly familiar with the idea of making energy comparisons, at least at the level of finding the cheapest supplier or working out if a particular source of...
All About How We Measure Energy
How We Measure Energy
A good definition of energy is ‘the ability to do work’. When we measure energy, what we want to know is: how much energy was required to...
Coal as an Energy Source
Coal is a very effective solid fuel as it burns to easily and produces a great deal of heat. Until relatively recently, coal-fires were the most common means of...
Energy: A Life Force
Energy is a huge concept – but essentially, it is ‘the power to do work’. Man can neither create nor destroy energy; he can, however, transform it into forms that he...
Light and Sound Waves Explained
Light travels in waves, and sound travels in waves. However, sound waves and light waves are very different, and it is important not to confuse the two. Light travels...
The Energy Our Bodies Need
Throughout our lives, our bodies never stop using energy. When we are asleep we use less energy than when we are awake; when we move around we use more energy than...
Thermal Energy Explained
Energy is the power to do work. The power of thermal energy takes the form of heat.
It is important to differentiate between heat and temperature. A thermometer...
What is Potential Energy?
There is a school of thought that classifies all energy as either potential energy or kinetic energy. Other scientists dislike this division, arguing that it is...
