Diagram of the electromagnetic spectrum

The portion of the electromagnetic spectrum that we can see with our eyes is tiny with respect to its full extent. If the electromagnetic spectrum was a window 30 million kilometres long, we would only have to open it three centimetres to let in all the visible light.

ASTROLab of Mont-Mégantic National Park

© 2006 An original idea and a realization of the ASTROLab of Mont-Mégantic National Park


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