Clothing, it seems, can make us colour blind, because whether we perceive someone as' white 'or' black 'depends not just on skin tone - but also how smartly they are dressed, according to researchers.
The Winter Hexagon involves some of the brightest stars visible, forming a large and easily found pattern in the winter sky of Earth's northern hemisphere.
While it's understandable that many people have learned to enjoy off flavors in oils, there's a good reason to recognize staleness and rancidity for what they are and avoid them.
The researchers don't read every single base on a strand of DNA, but they look for distinctive patterns of repetition of a single, very short sequence.