Have you ever wondered how our sense of smell operates? Everyday items release minuscule particles into the atmosphere. When these particles enter your nostrils, they mix with the mucus present there. Some of these molecules interact with unique receptors located on the “olfactory membranes.” Each nostril is equipped with one of these membranes, which is roughly the size of a postage stamp. These membranes are packed with millions of receptor cells, each poised to relay information to the brain regarding the airborne molecules that have entered the nose.
Show
Bill Nye the Science Guy
Episode
S05E11
Air Date
Feb 28, 1998
Season 5 Episodes
S05E01
Paving Asphalt, Marshmallow Cookies, Loudspeakers, Electronic Door Locks
S05E01
Forensics
S05E02
Wood Burning Stoves, Orthoses, Ballet Slippers, Buses
S05E02
Space Exploration
S05E03
Robotic Arms, Tattoos, Sanitary Napkins, Concrete Pipes
S05E03
Genes
S05E04
Hockey Gloves, Snack Cakes, Remolded Tires, Wastewater Treatment
S05E04
Architecture
S05E05
Farming
S05E05
Ambulances, Dining Room Tables, Diatonic Accordians, Acrylic Awards
S05E06
Life Cycles
S05E06
Alkaline Batteries, Wheelchairs, Flutes, Cowboy Boots
S05E07
Do-It-Yourself Science
S05E07
Golf Balls, Furniture Handles, Parking Meters, Room Dividers
S05E08
Suits of Armor, Street Light Poles, Bent Hardwood, Membrane Switches
S05E08
Atoms & Molecules
S05E09
Sulkies, Bagpipes, Yule Logs, Fishing Lures
S05E09
Ocean Exploration
S05E10
Goalie Pads, Lapel Pins, Cardboard Boxes, Crystal Wine Glasses
S05E10
Lakes & Ponds
S05E11
Cement, Caskets, Soft Drinks, Glider Rockers
S05E11
Smell
S05E12
Kitchen Knives, Mannequins, Socks, Hypodermic Needles
S05E12
Caves
S05E13
Electrical Panels, Kites, Eyeglass Frames, Toothbrushes
S05E13
Fluids
S05E14
Erosion
S05E15
Comets & Meteors
S05E16
Storms
S05E17
Measurement
S05E18
Patterns
S05E19
Science of Music
S05E20
Motion