Chocolate is a sweet that consists of cocoa butter, sugar and other ingredients. These ingredients determine not only the taste, but also the optical properties of chocolate. This means, how light is ...
It's faint, but squint a little and you might see the unusual sight of a rainbow pointing upwards in the skies above Sandy Bay, near Hobart. Yoav Daniel Bar-Ness has seen many rainbows in Tasmania, ...
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