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2:27
Dorothy Roseman describes her close encounters with vaccine-preventable diseases.
13:47
The polio vaccine's history extends more than fifty years.
4:48
Vaccination began as a traditional therapy over a thousand years ago.
2:11
Vaccines work with our immune system to keep us from getting sick.
3:52
The Allies used silent wooden gliders to get behind enemy lines before the D-Day landings.
2:58
Learn about the traits we most prize in dogs, and the bizarre jobs they were bred for.
2:55
A chance discover during a game of rugby led Dutch POWs to an ingenious WWII jailbreak.
2:58
Birds use a trick of the eye called “optic flow” to zip through forests without colliding.
5:01
Did a lethal plague kill thousands in ancient Rome? Centuries-old DNA may hold the answer.
4:05
A city-wide competition shaped the career of the architect behind Florence’s famous dome.
2:07
By studying bogs, scientists can uncover thousands of years of Earth’s history.
5:23
In World War I, the Germans used cow guts to construct their deadly Zeppelins.
