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The magnetic field protecting planet Earth
Our first line of defense
What is it?
Our planet is an enormous magnet made of iron which is..
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Electricity is the base of modern life, making it easy and convenient. We use it all the time w..
Lightbulb FactsLightbulbs transform electricity into light energy in order to illuminate our homes a..
Power Station FactsPower stations generate electricity for domestic, commercial, and industrial cust..
Magnetism is a force which can be demonstrated by the attraction and repulsion of certain mater..
ElectromagnetsAn electromagnet is a wire looped on a coil. To magnetise it, run an electric current ..
Geomagnetism is the analysis of our planet’s magnetic phenomena, the understanding of its magnetic f..
The Earth's magnetic field has alternated between periods of normal polarity (magnetic poles aligned..
Sensing direction, location or altitude using the magnetosphere
Humans cannot perceive or feel ..
The geomagnetic shield is the Earth's magnetic shield and provides our first line of defence against..
Technology uses rare earth metals but their mining is highly polluting
Problems with mining:..