Bill Nye the Science Guy
Season 5 Episode 11 - Smell
7.3 ?
1993
Comedy, Documentary, Kids
How do noses work? Objects give off tiny amounts of tiny molecules into the air. When just a few of these molecules get up your nose, they dissolve in the mucus up there. Some molecules come into contact with special receptors on what’s called your “olfactory membranes.” Each nostril has a membrane, and each membrane is only about the size of a postage stamp. The membranes hold millions of receptor cells, each of which are ready to send messages to the brain about the molecules that go up your nose.
Episodes in Season 5
1
Forensics
26 min
2
Space Exploration
26 min
3
Genes
26 min
4
Architecture
26 min
5
Farming
26 min
6
Life Cycles
26 min
7
Do-It-Yourself Science
26 min
8
Atoms & Molecules
26 min
9
Ocean Exploration
26 min
10
Lakes & Ponds
26 min
11
Smell
26 min
NOW PLAYING
12
Caves
26 min
13
Fluids
26 min
14
Erosion
26 min
15
Comets & Meteors
26 min
16
Storms
26 min
17
Measurement
26 min
18
Patterns
26 min
19
Science of Music
26 min
20
Motion
26 min
