medicinalflowers (@medicinalflowers)

Our Noses Can Allegedly Detect One Trillion Smells https://www.bbc.com/news/health-26638085 > The human nose can detect one trillion different odours, far more than we previously thought, say US scientists. > Until now, the long-held belief was that we can sniff out about 10,000 smells. > New estimates published in Science, external suggest the human nose outperforms the eye and the ear in terms of the number of stimuli it can distinguish between. > Researchers at the Rockefeller University say we use only a tiny part of our olfactory powers. > The human eye uses three light receptors that work together to see up to 10 million colours, while the ear can hear almost half a million tones. > Until now it was believed the nose, with its 400 olfactory receptors, could detect only about 10,000 different odours. #discussions #science #TIL #interesting