Discover how tiny muscles raise body hairs in the cold, why that response matters more in furry mammals, and what research reveals about hair follicles.
Explore how movable type changed the production of books, expanded the circulation of ideas, and reshaped communication without making knowledge instantly universal.
Follow nectar from a flower to a wax-capped cell and discover how honey bees use enzymes, teamwork, and evaporation to make honey.
Explore how motion sensors, presence detectors, and electronic controllers work together to open automatic doors and manage the doorway.
Discover how gravity shapes planets, why small asteroids can remain irregular, and why even Earth is not a perfect sphere.
Explore what scientists know about yawning, why the oxygen explanation falls short, and how research investigates the urge to copy another person’s yawn.