Sir Isaac Newton is credited with constructing the first "practical" reflecting telescope after his own design circa 1670. He designed his reflector, which used a concave objective and a smaller "diagonal" mirror. Photograph Andrew Dunn.
Added:
26th Aug 2007 by Diane Earl
Subjects:
History, Science
Key Stages:
Key Stage 1, Key Stage 2, Key Stage 3, Key Stage 4, Key Stage 4+
Keywords:
telescope
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