Imagine cracking open a boiled egg, only to find the whites aren't white at all - but completely see-through. That is exactly what a viral Reddit post claims happens when you boil a penguin egg.

This means objects can be seen clearly through a transparent substance. Translucent close translucentA ... through the frosted glass are not clear. Opaque close opaqueA material, object or ...

Black and white represent opaque and fully transparent, while various gray levels represent levels of translucency. More than one layer in a multilayered image may contain a translucent component ...

Calcite can be transparent, translucent or opaque. Renee Birchall is a Senior Research Scientist in CSIRO's Discovery Program and works in the cross-team CarbonLock Future Science Platform ...