9/26/17 Show on Ice Cores and Former Earths

Featured image: A photo of an ice chunk dug up from a glacier in Alaska; this chunk came from 682 feet below the surface. (courtesy Climate.gov and Mike Waszkiewicz).

In this show, we zoom in on the science of ice core drilling. Scientists have long examined the layers of ice sheets, which are about two miles thick over Greenland; different summer ices and winter snows make yearly trends visible to researchers, so that we can track the climate over the last 100,000 years. How do researchers manage to camp out in the harsh Greenland tundra for months at a time to dig up miles of ice core? What do we learn about the tumultuous climate from this venture? Much of the discussion is based on an excellent book, The Two-Mile Time Machine by Richard B. Alley.

In other news:

The playlist can be found on WPRB.com or below.

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9/19/17 Show feat. Dave Seal, Mission Planner for Cassini Saturn Space Probe

In this episode of These Vibes, Stevie spoke with Dave Seal, a mission planner on the Cassini space probe which spent many years orbiting Saturn. Cassini operated its final maneuver, called the “Grand Finale,” and ended its observing by plunging in to Saturn just last Friday morning at 8am EST. It took a final image and took it’s last bits of data on Saturn’s atmosphere before being destroyed. Listen in to learn about the mission, its development, goals, and discoveries, and learn more about what it’s like to be a mission planner on a NASA space probe.
All that plus great music, and science news from microplastics in our seasalt to the new research on cancer cells.

Science News:


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9/12/17 Show feat. Robert Nazarian on Physical Oceanography and Internal Waves

Featured image: The Luzon Strait serving as a breeding ground for internal waves. Alternating streaks of rough and smooth water are visible traversing the sea floor. (courtesy MIT)

This week, we host Robert Nazarian, graduate student in Atmospheric and Oceanic Sciences, to talk through his research on ocean dynamics and internal waves. How complicated is the motion of the sea, and how can this massive system be modeled? Rob’s research focuses on energy flows through the sea, where waves carry heat from one place to another. How do ocean flows, large-scale motion and small-scale turbulence alike, affect the environment in and out of the water? Further, Rob will talk about his outreach, and how he has used innovative teaching techniques to engage students in learning about oceanography.

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Ocean gyres, driven by cyclic winds. (Creative Commons)

In other news:

The playlist can be found on WPRB.com or below.

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9/5/17 Show feat. Edward Felten on Electronic Voting – the Good, the Bad, and the Insecure

In this edition of These Vibes, Professor Edward Felten joined us back in the studio to discuss electronic voting — what that means, what are the alternatives, the pros and cons, and the current state of voting technology in the US. Edward Felten is professor of computer science and public affairs here at Princeton University, and founding director of the Princeton Center for Information Policy. Additionally, he was Chief Technologist for the Federal Trade Commission from 2011-2015 and joined the Obama administration as Deputy US Chief Technology Officer in 2015.

Our discussion gives particular attention to usability issues with the current voting computers used in US elections and their vulnerability to attacks. Professor Felten discusses the role of hacking in the 2016 election, and, to wrap-up, what the ideal voting system would be, using our current technology.

Ed Felten previously joined us at WPRB last May to discuss the intersection of policy and technology — think self-driving cars and trucks, and AI in the criminal justice system. You can listen to that full show here, and the interview has been podcasted – find wherever you get your podcasts!


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8/29/17 Show feat. Christa Baker on what fruit flies hear, and Matt Grobis on doing research

In this episode of These Vibes, Stevie speaks with neuroscientist Christa Baker about fruit fly mating songs and electric fish — and for each, how she is tracking their neural pathways to learn how their brains undergo the complicated process communication.

Additionally, animal behaviorist Matt Grobis comes on the air to talk about the nitty gritty “devil’s chess match” of doing research — the good and the bad.

Science News:


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