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Considering Cost
NOVA
About the Episode
Learn strategies to consider cost before making your next purchase.
Aired: | Expires: | Runtime: 3m 05s
Recent Episodes
Episode 17, Season 51<br> Building Stuff: Change It!
From electric flight to artificial noses, engineers are finding new ways to preserve our planet.
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Episode 16, Season 51<br> Building Stuff: Reach It!
Humans are born to roam. See how engineers are inventing new ways to explore and extend our range.
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Extras
Why Do Comets Have Tails?
As comets cross the invisible boundary known as the ice line, their ice starts turning into gas.
0:55
This Tiny Moon Is a Volcanic Powerhouse
Io’s intense volcanic activity defies all expectations.
2:45
How a Walnut-Shaped Moon Help Shape Saturn’s Rings
For millions of years, a tiny moon has made a significant impact on the structure of Saturn’s rings.
2:35
Venus: The Planet With Battery Acid Clouds
This is what it would be like to walk on the surface of Venus.
3:27
Hurricanes Are Getting More Destructive
Recent hurricanes blow away records for destruction, costing over a trillion dollars in 20 years.
4:15
Why is Haumea Shaped Like an Egg?
Most objects with a radius over 200 miles are spherical, but Haumea is an exception.
2:30
Sir Arthur C. Clarke's Vision of the Computer-Dominated Future
Watch this interview with Sir Arthur C. Clarke for The Mind Machine (1978.)
1:39
Building Stuff: Boost It! Preview
Is engineering humanity’s superpower? See how we can amplify our natural abilities in amazing ways.
0:30
How Medieval Armorers Made Knights Bulletproof
Knights and firearms clashed on the battlefield for over 200 years.
2:15
How Do Hurricanes Form?
Hurricanes are getting more intense, faster.
1:02
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