10 results for “smell”

1. The Human Body

   The Senses

   Smell and taste Smell is chemistry. Molecules in the air dissolve in mucus high in the nose

   Article · 4 min read

   

2. Plants & Fungi

   Flowers and Pollination

   smell, so hummingbird flowers are red, scentless, tubular and hang downward, out of reach of bees

   Article · 4 min read

   

3. Animals

   Sharks

   smell is legendary, able to detect blood at concentrations of a few parts per billion, and their

   Article · 3 min read

   

4. Animals

   Animal Migration

   Smell matters more than anyone expected. Salmon imprint on the chemical signature of their home stream

   Article · 4 min read

   

5. Animals

   Birds

   smell their way and remember landmarks, and young birds of some species find their wintering grounds

   Article · 3 min read

   

6. Animals

   Mammals

   smell, and warm blood date from that long apprenticeship. When the asteroid struck 66 million years

   Article · 4 min read

   

7. Matter, Energy & Physics

   The Periodic Table

   smelling and formed salts. But nobody could see why. In 1869 a Russian professor named Dmitri

   Article · 4 min read

   

8. Plants & Fungi

   Fungi

   smelling slime that flies carry away. Where a spore lands on something edible and damp, it sprouts

   Article · 4 min read

   

9. Planets & the Solar System

   The Moon

   smells, astronauts reported, like spent gunpowder. Daytime temperatures reach about 120 degrees Celsius and plunge to minus

   Article · 4 min read

   

10. Chemistry

    Chemical Reactions

    smell, a solid appearing from a liquid, or a change in temperature. Vinegar poured on baking

    Article · 3 min read