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00:05:00
Take a stroll in Golden Gate Park at dusk and if you’re lucky, you’ll hear a sound perhaps unexpected: the hooting of wild owls. Jessie Bushell of the San Francisco Zoo debunks some common myths about owls while introducing us to several rescued owls currently living at the zoo—from a 3-ounce northern saw-whet owl that was hit by a snowmobile to a 10-pound Eurasian eagle owl confiscated from a smuggler.

00:04:47
The end of an era is near: In movie theaters across the country, film projectors are rapidly being replaced by digital projectors. Paul Clipson, projectionist at the San Francisco Museum of Modern Art, gives us what may be a last-chance look at the tools and techniques—including lightning reflexes—at work in 35 mm film projection.

00:03:06
What happened to your stacks of wax? From handmade record players to DJs scratching new sounds, explore unique uses of an old-school material.

00:05:09
In this age of iPods and MP3s, the vinyl record (still) stands as an object of curiosity and ongoing admiration. What’s the real difference between a 78 and a 45? Why do they call it “cutting a record” when an album is recorded? Music enthusiast Wade Wright of San Francisco takes us back in time to explain the history and technology of vinyl records.

00:03:53
Senior Exploratorium Scientist, Paul Doherty demonstrates how you can make your own sun viewer. You can safely view sunspots, eclipses and transits with this equipment that you may have laying around the house! To learn more about the upcoming Transit of Venus visit: http://www.exploratorium.edu/venus/question3.html

00:06:39
Beneath the 100-year-old piers that will soon house the new Exploratorium, highly specialized divers are working around the clock to repair and restore a part of the museum that most people will never see: the 1,200 concrete piles—sunk into the bay mud—that support the piers.

00:01:48
Every winter, the Exploratorium’s Science of Cocktails event presents the artistry of master mixologists shaken with the science behind the craft. Guest mixologists will join us from popular San Francisco bars to mix delicious cocktails, while guests participate in interactive science experiments about alcohol, inebriation, hangovers, cocktail creation, and more. Music by Wayne Grim

00:04:10
San Francisco has more restaurants per capita than any other U.S. city, producing tasty meals—and thousands of gallons of used cooking oil. See how the SFGreasecycle program is turning this grease glut into fuel for the city's bus fleet.

00:02:25
Originally produced for NOVA in 1982, Jon Else's film, "Palace of Delights" takes a look behind the scenes at the Exploratorium in action.

00:00:40
This After Dark, we celebrated the allure of real rocks, paper, and scissors, and explored some surprising theories surrounding the game. Using the official rules of the World RPS Society, we hosted our own Rock Paper Scissors tournament.