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How do braces make teeth straight? They actually just copy the process that the rest of bones naturally undergo. Part of the "Science Out Loud" series.
Runtime: 4 minutes 8 seconds
Exoplanets: Planets Outside Our Solar System
Humanoid Robot Brains
Squid Skin With a Mind of Its Own
Growing Nanotube Forests
Engineering Engines: What Do Horses, Cars, and Planes Have in Common?
The Science of Bouncing
The Physics of Invisibility Cloaks
The Physics of Skydiving
Solving Biology's Mysteries With Plants
Funding provided by the Department of Education
Administered by the National Association of the Deaf