The Earth at night; this composite map shows the world’s artificial lighting, and was taken between April and October 2012
Photri/Topfoto
The terms in bold link to topics in the AQA, Edexcel, OCR, WJEC and CCEA A-level specifications, as well as the IB, Pre-U and SQA exam specifications.
Nuclear fusion occurs when light nuclei join to form nuclei of heavier elements. In the process mass is converted to energy. This process takes place in the stars but research is focused on designing and developing Earth-based fusion reactors as a sustainable power source for the future.
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