Speed of Light
Light, Sound and Waves

Cosmic latte

Stories from Physics for 11-14 14-16 IOP RESOURCES

Researchers have attempted to determine a ‘cosmic colour’ by averaging the frequency of light emitted by 200,000 galaxies within 2 billion light years of the Earth. Though the researchers initially reported the mean colour was somewhere between turquoise and aquamarine, a bug in their software caused a miscalculation and they subsequently reported the new average is beige — a colour sometimes referred to as ‘cosmic latte’. You can experience ‘cosmic latte’ on the NASA website apod.nasa.gov/ apod/ap091101.html


Speed of Light
appears in the relation n=v/c
is a special case of Wave Speed
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