Introduction to Mental Accounting

Extras

• 

  How Did the Moon Come to Be?

  Scientists have several theories for how Earth's Moon formed.

  1:01
• 

  Scientists Launch Rocket into the Moon to Find Water

  Researchers hope to observe lunar material ejected from an impact.

  4:35
• 

  Why Did These Vikings' Bones Appear Older Than They Are?

  Hint: Carbon in the ocean is different than carbon on land.

  2:18
• 

  Milking a Horse is Harder than You Think

  To milk a horse, one must trick a mother horse—and trick her well.

  0:38
• 

  As Megafires Have Become More Common, So Have Fire Tornadoes

  What causes flames to start spinning?

  2:32
• 

  Why Fires Move Faster Up a Hill than Down

  U.S.D.A. scientists conduct an experiment to discover why fires move uphill.

  2:33
• 

  How Did the Camp Fire Start and Spread?

  From the start, California’s deadliest fire had the potential for disaster.

  1:46
• 

  Camp Fire Survivor Sees Destroyed Home for the First Time

  A resident returns home and witnesses the Camp Fire's destruction firsthand.

  1:54
• 

  To Save Water, Women in Jordan Learn to Plumb

  Can women tackle the country's water shortage by learning a new trade?

  1:04
• 

  Volcanologists Descend into Mt Vesuvius' Crater

  Gas samples from Mt. Vesuvius can reveal how close magma is to the volcano's surface.

  2:58