The KGNU Science Show
This is an extended version of the interview we broadcast on February 26, 2013, featuring Professor Brian Greene discussing the concepts of Parallel Universes.
Podcast: Play in new window | Download (Duration: 25:33 — 23.4MB)
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Russian Meteor (starts at 4:28) Just a few days ago on February 15th, a large meteor broke up in the skies over Russia, creating an air blast and sonic boom, which caused damage to buildings that injured over 1,000 people. We talk with Dr. Clark Chapman to ask why the universe is taking potshots at us. Dr. Chapman is an astronomer and Senior Scientist at the Boulder office of the Southwest Research Institute, and is recognized as a leading researcher in planetary cratering and in the physical properties asteroids, comets, and moons. For more than a decade Dr. Chapman has been studying the risks of comets and asteroids hitting the Earth and has been a member of Congressional and international committees regarding impact hazards. He is a founding member of the B612 Foundation, which is developing ways to detect and deflect hazardous asteroids.
Dark Matter (starts at 12:45) Maybe you’ve heard about it. Maybe you even know that it is everywhere throughout the universe. But for such a ubiquitous material, what do you really know about Dark Matter? If the answer is “Not much,” don’t worry, you are in good company; many scientists would say the same thing. But, you’re in luck because we have Dr. Martin Huber with us today talk about Dark Matter – what is known know about it and how we can detect it. Dr. Huber is Professor of Physics and Director of the Master of Integrated Sciences program at the University of Colorado, Denver. He is a member of the Cryogenic Dark Matter Search project, and on today’s show he sheds some light on Dark Matter.
Hosts: Joel Parker, Jim Pullen
Producer: Joel Parker
Engineer: Jim Pullen
Executive Producer: Shelley Schlender
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Podcast: Play in new window | Download (Duration: 23:52 — 21.9MB)
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Feature #1: (start time 5:09) Did you know that Colorado, and for that matter most states, have their own “state climatologist” – an expert who keeps tabs on the changing climate and its impacts in the state. In Colorado’s case it’s Nolan Doesken. He’s based out of the Colorado Climate Center at Colorado State University. Mr. Doesken also heads a nationwide citizen-science project called the Community Collaborative Rain, Hail and Snow Network. How On Earth co-host Susan Moran interviews Mr. Doesken about the network, as well as a recently released Colorado River Basin Water Supply & Demand Study, which suggests we’ll be thirstier and thirstier in the future.
Feature #2: (start time 16:00) Water is such an essential — perhaps the essential — resource for life that it is considered as a key ingredient for life anywhere in the universe. No surprise, then, that it has become a battleground, especially in the Western states like Colorado that are dealing with drought conditions and higher demand for clean water to support a ever-increasing population. Dr. Mark Williams, professor of geography at CU Boulder talks with co-host Joel Parker about his research into the environmental and human health impacts of energy development and mining on the quality of water in our aquifers.
Hosts: Susan Moran, Joel Parker
Producer: Susan Moran|
Engineer: Jim Pullen
Executive Producer: Jim Pullen
(Click below to play audio.)
This show was featured January 7th 2013 by Science 360 Radio
Podcast: Play in new window | Download (Duration: 24:45 — 22.7MB)
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Main Feature (starts at 5:25). We talk with Dr. Robert Arentz from Ball Aerospace in Boulder about what’s new and interesting at Ball and in space missions in general including asteroid impact hazards on Earth and what can be done about it.
Hosts: Joel Parker and Jim Pullen
Producer: Joel Parker
Engineer: Joel Parker
Executive Producer: Jim Pullen
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Podcast: Play in new window | Download (Duration: 22:59 — 21.0MB)
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Today on How On Earth we speak with Dr. Bernie Krause about how soundscapes can help us understand the health of ecosystems. Dr. Krause has been recording the whole sounds of nature all over the world for 40 years. His new book is The Great Animal Orchestra: Finding the Origins of Music in the World’s Wild Places.
Hosts: Jim Pullen and Joel Parker
Producer: Jim Pullen
Engineer: Jim Pullen
Additional Contributions: Shelley Schlender and Rabah Kamal
Executive Producer: Jim Pullen
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Podcast: Play in new window | Download (Duration: 24:09 — 22.2MB)
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The Life and Legacy of Rachel Carson (start time 6:20). The book Silent Spring, published in 1962, is widely credited for setting the stage for the modern environmental movement. Its author, Rachel Carson, an unassuming field biologist and writer, uncovered how in the process of killing crop pests, chemicals such as DDT were also killing birds, fish and other wildlife. Fifty years after Silent Spring was published, several of the worst offending toxins are off the market – at least in the U.S. – but many more persist and new ones have emerged. And they’re wreaking havoc on human health, not just wildlife. How On Earth co-host Susan Moran talks with William Souder, author of the new book On a Farther Shore: The Life and Legacy of Rachel Carson, which was just published last month to mark the 50th anniversary of the release of Silent Spring.
Hosts: Susan Moran, Joel Parker
Producer: Joel Parker
Engineer: Jim Pullen
Executive Producer: Jim Pullen
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Podcast: Play in new window | Download (Duration: 23:23 — 21.4MB)
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Hosts: Jim Pullen and Joel Parker
Producer: Jim Pullen
Engineer: Jim Pullen
Executive Producer: Jim Pullen
Podcast: Play in new window | Download (Duration: 23:21 — 21.4MB)
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Hosts: Jim Pullen and Joel Parker
Producer: Jim Pullen
Engineers: Jim Pullen, George Figgs, and Dafe Hughes
Executive Producer: Jim Pullen
Podcast: Play in new window | Download (Duration: 24:28 — 22.5MB)
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Big Waves (start time 4:39): When does one plus one not equal two? When waves behave non-linearly, according to CU researchers Mark Ablowitz and Douglas Baldwin. The two have been researching how multiple water waves can add together to form a wave with a height much greater than twice the height of either wave. The mathematicians refer to these as X and Y waves, which sounds mathematical but actually just refers to the shape of the wave front as seen looking down on the wave from above. Rather than being rare, these waves are readily observable and may be the reason that some tsunamis are much larger than anticipated. We spoke yesterday with the pair to find out more about these interesting waves.
Omega 3 Fatty Acids (start time 14:49): It’s widely accepted that Omega 3 supplements are good for many things, especially your heart, and that fish oil is high in Omega 3. But earlier this month, Greek researchers made a splash with a meta-analysis that concluded that fish oil supplements do not help your heart. They came to this conclusion even though, in their analysis, people taking fish oil pills or eating fish had 9 percent fewer deaths from heart disease and 11 percent fewer heart attacks than people who don’t. Fans of Omega 3 shot many other harpoons into the study, and we look at one of their most compelling complaints – it’s that the amount of Omega 3 that people’s bodies absorb depends on many things, and the Greek scientists did not examine studies that checked Omega 3 fatty acids levels where they count the most. That’s in people’s blood. To find out more about why blood levels of Omega 3’s might matter, How On Earth’s Shelley Schlender talks with Doug Bibus. Bibus is part of the team that years ago basically discovered Omega 3s. He’s a two-time winner of the American Chemical Society’s Award in Analytical Chemistry. Bibus says that most Americans have very low levels of Omega 3s, and they’d be healthier if their levels were higher.
Hosts: Beth Bartel, Joel Parker
Producer: Beth Bartel
Engineer: Joel Parker
Executive Producer: Susan Moran
Podcast: Play in new window | Download (Duration: 24:46 — 34.0MB)
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Colorado Drought Conference (start time 4:35): Experts are meeting at a conference in Denver this week to discuss the implications of prolonged drought conditions here in Colorado. How On Earth’ Susan Moran speaks with biologist Dr. Chad McNutt of the NOAA’s National Integrated Drought Information Center about wthe drought means for the ecosystem, and for Western cities — and how we can start to address the problem.
A More Perfect Heaven (start time 11:50): Joel Parker speaks with Dava Sobel, a science journalist and author who tells the stories of the science and the scientists from the past and how they connect to the present. Those stories reveal that the course of scientific progress is far from orderly — it often takes unplanned twists, has failures that require going back and starting over, and can be driven by the quirks of the personalities of individual scientists.
Today we hear about Sobel’s most recent book, A More Perfect Heaven: How Copernicus Revolutionized the Cosmos. This book also contains the play And The Sun Stood Still, which will be presented in a free staged reading by the Boulder Ensemble Theatre Company this Thursday, September 20th at 6:30 at the Dairy Center for the Arts.
Hosts: Ted Burnham, Joel Parker
Producer: Ted Burnham
Engineer: Jim Pullen
Executive Producer: Susan Moran
Podcast: Play in new window | Download (Duration: 22:38 — 20.7MB)
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