KQED Science Video Podcast

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QUEST Lab: Bridge Thermometer May 04, 2010

Show notes

The roadway across the Golden Gate Bridge rises and falls as much as 16 feet depending on the temperature. When the sun hits the bridge, the metal expands and the bridge cables stretch. As the fog rolls in, the cables contract and the bridge goes up. Curators from the Outdoor Exploratorium in San Francisco have set up a scope two miles away so you can see how the bridge is moving up or down depending on the weather.

Science of Taste Apr 27, 2010

Show notes

Did you know that about 95 percent of what we think is taste is actually smell? Or that the way we perceive flavor comes from a complex relationship between our senses, emotions and memories? As scientists decode how our taste and olfactory receptors work, top California chefs are taking that knowledge and creating alchemy in the kitchen.

Web Extra: City Egg, Country Egg Apr 27, 2010

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Is there a difference in taste between eggs gathered right from the farm and ones bought at the supermarket? Sebastian Nava, Research Assistant at the Culinary Institute of America, Greystone, presents his ongoing study of store-bought eggs and their country cousins.

Cool Critters: Dwarf Cuttlefish Apr 27, 2010

Show notes

Whatis the coolest critter in the ocean under 4 inches long? The Dwarf Cuttlefish! These little guys can change their color and texture, and feeding time is a show like no other. Get an up-close look at these tiny underwater aliens as QUEST visits them at the California Academy of Sciences.

Plastic in the Pacific Apr 20, 2010

Show notes

Imagine every person on earth had 100 pounds of plastic. That's how much new plastic will be manufactured in 2010. Sadly, much of that will end up in the ocean within a massive area dubbed the Pacific Garbage Patch. Can anything be done to clean it up?

Catching Up on Sleep Science Apr 13, 2010

Show notes

Everyone can appreciate the value of a good night's sleep. But did you know that a lack of sleep can have real consequences for your health? QUEST investigates how sleep affects our minds and bodies and uncovers why some people are genetically programmed to need less sleep than others.

QUEST Quiz: Sleep Apr 13, 2010

Show notes

Our companion story to "Catching Up on Sleep Science", this short segment serves as a quiz for viewers to test their knowledge about sleep and sleep disorders.

Web Extra: Sharks in Captivity Apr 06, 2010

Show notes

Over the years The Monterey Bay Aquarium has had success holding a handful of great white sharks in their enormous outer bay exhibit. In the process scientists have learned much about these animals and millions of visitors have gotten a chance to meet a live white shark up close and personal.

QUEST Lab: Speed of Sound Apr 06, 2010

Show notes

Along with cable cars and seagulls, the Golden Gate Bridge foghorn is one of San Francisco’s most iconic sounds. But did you know that if you hear that foghorn off in the distance, you can calculate how many miles you are from the bridge? Using the Speed of Sound exhibit at the Outdoor Exploratorium at Fort Mason, Shawn Lani shows us how sound perception is affected by distance.

Suiting up for Science: Swimming With Sharks Apr 06, 2010

Show notes

In our first installment of QUEST's new Science on the SPOT web series, we go behind-the-scenes at the Monterey Bay Aquarium, with the intrepid dive team who keep the enormous Outer Bay Exhibit tank spic and span-- while swimming in 40 pounds of stainless steel, shark-resitant armor.

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