David J. Brenner

Mar. 18, 2011

Update On Japan's Malfunctioning Nuclear Reactors

Nuclear experts discuss events at the Fukushima Daiichi facility.

japan, earthquake, tsunami, nuclear, radioactive

Nov. 19, 2010

Airport Scanners

Public outcry continues to build over use of advanced scanners in airport security screening. We'll talk about the system, how it works, and what you need to know about the technology.

airport security, xray, backscatter

AVAILABLE IN ITUNES

Michael Pollan Talks Plants and Food

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Whale Tales

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Mystery Box

How Humpbacks Hunt With Bubbles

Humpback whales blow bubbles around schools of fish to concentrate them for easier capture. It's called a bubble net, says David Wiley, research coordinator for Stellwagen Bank National Marine Sanctuary, and it's visible as a ring of bubbles at the surface. Now, with underwater digital tracking tags and custom visualization software, whale researchers can see what the whales are doing underwater when they're bubble-netting.

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