Nose
AI is cracking a hard problem–giving computers a sense of smell
Research on machine olfaction faces a formidable challenge due to the complexity of the human sense of smell. Whereas human vision mainly relies on receptor cells in the retina – rods and three types of cones – smell is experienced through about 400 types of receptor cells in the nose.
These 17 Celebrities Have Said 'No' to Plastic Surgery — Here's Why
From Barbra Streisand's refusal of a nose job to Sarah Paulson's commitment to aging naturally, here are the celebrities who've chosen to abstain from plastic surgery.