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9:59
When Do Childhood Memories Start to Fade?
On average, adults’ earliest memories go back to the age of three.
9:12
What Pulled the Plug on the Bioluminescent Bay?
The glowing bioluminescent bay near Fajardo, Puerto Rico went dark for more than a week in November.
24:53
Meet Vermeer, the Engineer
A new documentary, “Tim’s Vermeer,” shows that the Dutch master painter was a tinkerer, too.
11:36
Greenland’s Fast-Moving Glacier Speeds Up
The Jakobshavn glacier reached speeds of more than 150 feet per day during the summer of 2012.
16:53
Alan Alda’s Challenge to Scientists: Define Color
Alda’s ‘Flame Challenge’ asks scientists to explain color—with children as the judges.
29:15
At Sundance, Scientists and Screenwriters Are Judges
What makes science work on-screen? This year’s Sundance judges weigh in.
34:21
Could There Be a Crisis in Physics?
Physicist Lawrence Krauss and Nobel Laureates Frank Wilczek and Brian Schmidt discuss current cosmic challenges.
12:12
Hotter Weather, Heavier Rains Threaten Penguins
Move over polar bears—could penguins be the new poster children for climate change?
17:04
James Dyson: ‘Failures Are Interesting’
Inventor James Dyson built 5,127 prototypes before completing his first bagless vacuum.
30:01
A ‘Personal’ Computer Turns 30
On January 24, 1984, Steve Jobs unveiled the Macintosh computer to the world.