Up Next
Back to Show
NOVA
Why is the Eiffel Tower Shaped Like That?
At the time of its construction, the Eiffel Tower was the tallest structure ever built. That meant that the engineers had a key challenge: making sure the structure could survive the wind.
Support Provided By
1:52:42
The story of how African-American Percy Julian defied the odds to become a famous chemist.
Unlock with PBS Passport
52:31
What led to the devastating floods that Hurricane Katrina unleashed on New Orleans?
Unlock with PBS Passport
53:31
Journey back to the beginning of everything: the universe, Earth, and life itself.
Unlock with PBS Passport
50:52
Journey back to the beginning of everything: the universe, Earth, and life itself.
Unlock with PBS Passport
51:52
Journey back to the beginning of everything: the universe, Earth, and life itself.
Unlock with PBS Passport
53:50
An American combat hospital mobilized in Iraq faces a daily drama of wartime treatment.
53:06
Will experimental particle physics confirm the wild predictions of string theory?
52:56
Do miniscule vibrating strands of energy hold the key to a unified theory of physics?
52:55
Combining the laws of the universe in one theory that explains it all is the Holy Grail
