Browsing 150 - 160 results of 399 programs for subject - General Science
Obsidian points, Spanish terra-cotta tiles, Prohibition-era liquor bottles—history lies buried underfoot in the Presidio, one of the earliest settlements in San Francisco, occupied in turn by the Ohlone Indians, Spanish, Mexicans, and the U.S. Army. Archaeologist Kari Jones shares tales of recent digs and discoveries in this national park, and explains why most artifacts are dug up only to be reburied. Framing of the Exploratorium's Observatory Building, the only completely new construction at at the piers, began in April 2011. Iron workers placed various sizes of steel beams in piles around the concrete base of the Observatory. Then, while a crane raised and held each beam aloft, the workers used metal spikes to line up the holes of the beams and inserted bolts, tightening them down to tie the structure together. Because the Observatory Building is less than two stories tall, the iron workers were allowed to shimmy across the beams without harnesses. Once this process was finished, the beams were plumbed and welded together. Cheer on the competitors in this zany science cook-off, where teachers compete before a live webcast audience for the sought-after title, "Iron Science Teacher." Cheer on the competitors in this zany science cook-off, where teachers compete before a live webcast audience for the sought-after title, "Iron Science Teacher." Cheer on the competitors in this zany science cook-off, where teachers compete before a live webcast audience for the sought-after title, "Iron Science Teacher." This week's secret ingredient? Colors! Like the Golden Gate Bridge, San Francisco's cable cars are world-renowned as emblems of our city. Join us for a ride down Hyde Street as we investigate what makes these historic cars go—and more importantly, stop—on the steep hills of San Francisco.
To learn more visit the Cable Car Museum website: http://www.cablecarmuseum.org/index.html
Intuit Founder Scott Cook, NOAA Administrator Jane Lubchenco, Former Los Angeles Unified School District Superintendent Ramon Cortines, and Retired Congressman Vernon Ehlers join KQED's Dave Iverson for a lively conversation on the topic of Science for Decision Making. This discussion was recorded at the Exploratorium's 34th Annual Awards Dinner on May 4, 2011.
In this show we'll explore the EcoCenter at Heron's Head Park, San Francisco's only off-grid building and an inspiring model of sustainable living in an area that has historically been a dumping ground for industrial waste. We are guided through the place and its principles of environmental justice by recent college graduate and EcoCenter worker Jasmine Dow.
You've probably heard about the Texas-sized island of plastic trash swirling in the center of the Pacific Ocean. But did you know we have our own pockets of floating trash right here in San Francisco Bay? Join us on a trash safari with Sealife Convervation—a research and education group studying the volume, distribution, and sources of trash in the San Francisco and Monterey Bays.
Just outside the hum and buzz of San Francisco, there's a hum and buzz of a different sort.
It's the sound of thousands of acres of almond crops being pollinated by bees—bees in such demand
that they must be trucked in from as far as Texas. Almond grower Dave Phippen explains why.
keeping this winged labor force happy and healthy is a vital but tricky business.