A cat’s ability to see well at night is due to its ” tapetum lucidum “, a structure that reflects visible light back through the cat’s retina. It’s also what causes the eyes’ weird ‘glowing’ effect in the dark.
Due to the sheer size of the beak, it would be sensible to think it weighs a fair amount but actually due to the little air holes the beak is actually quite light.
Starting Jan 1, 2014, traditional 40 and 60 watt incandescent light bulbs will no longer be available in the U.S.
The human body literally glows, emitting a visible light in extremely small quantities during the day.