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Steve Sergeant 09/08/2005Jim Metzner's "Pulse of the Planet" has been educating radio listeners about the natural sciences for almost twenty years. The program was ground-breaking in it's original inception as "The ...
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Episodes
- Katydids/Crickets - Chorus
(3mb)
Fri, 05 Sep 2008 00:00:00 PDT
An entomologist gives us a tour of the insects singing along a creek one hot summer night. - Katydids/Crickets - Discovery (3mb)
Thu, 04 Sep 2008 00:00:00 PDT
Scientists learn something new about crickets and katydids when they stop looking and start listening. - Cone Shells-Poison Tongued (3mb)
Wed, 03 Sep 2008 00:00:00 PDT
Cone shells use a powerful venom to immobilize their prey - Science Diary: Water - Moon (3mb)
Tue, 02 Sep 2008 00:00:00 PDT
You may want to think twice before taking a dip in the ocean during a full moon. - Science Diary: Water - Fingerprints (3mb)
Mon, 01 Sep 2008 00:00:00 PDT
Bodies of water have unique identifying characteristics that enable scientists to trace pollutants to their source. - Dead Zone - Causes (3mb)
Fri, 29 Aug 2008 00:00:00 PDT
Off the coast of Louisiana there's about 6000 square miles of ocean that's virtually devoid of life. - Tsunamis - Protection (3mb)
Thu, 28 Aug 2008 00:00:00 PDT
what preventative measures can we take to minimize the impact of tsunamis? - Tsunamis - In the US? (3mb)
Wed, 27 Aug 2008 00:00:00 PDT
What regions in the US are most susceptible to tsunamis? - Science Diary: Seaweed - Extraction (3mb)
Tue, 26 Aug 2008 00:00:00 PDT
Seaweed physiology can change with the seasons, the tide, even the time of day. - Science Diary: Seaweed - Experiment (3mb)
Mon, 25 Aug 2008 00:00:00 PDT
When scientists want to extract beneficial compounds from seaweed, it's a complex process. - Tsunamis - Predicting (3mb)
Fri, 22 Aug 2008 00:00:00 PDT
There was not an adequate warning issued for the Indian Ocean tsunami. What went wrong? - Tsunamis - Quakes (3mb)
Thu, 21 Aug 2008 00:00:00 PDT
For an earthquake to produce a tsunami, it has to change the shape of the ocean's bottom. - Science Diary: Physics - Science of Humility (3mb)
Wed, 20 Aug 2008 00:00:00 PDT
For an apprentice, experimental physics can be a humbling endeavor. - Science Diary: Physics - Cyclotron (3mb)
Tue, 19 Aug 2008 00:00:00 PDT
If you like smashing things, nuclear physics may be the field for you! - Science Diary: Physics - Parsing Particles (3mb)
Mon, 18 Aug 2008 00:00:00 PDT
Ask a few physicists to define the word particle, and the answers will vary. - Tsunamis - Power (3mb)
Fri, 15 Aug 2008 00:00:00 PDT
What makes a tsunami so powerful and so dangerous? - Tsunamis - Origins (3mb)
Thu, 14 Aug 2008 00:00:00 PDT
Most tsunamis are caused by earthquakes, but that's not the only cause of one of nature's most destructive forces. - Tsunamis - Lump in the Ocean (3mb)
Wed, 13 Aug 2008 00:00:00 PDT
There's a crucial difference between tsunamis and tidal waves. - Science Diary: Redwoods - Climbing (3mb)
Tue, 12 Aug 2008 00:00:00 PDT
Thinking of climbing a giant redwood? Don't try this at home! - Science Diary: Redwoods - Straw (3mb)
Mon, 11 Aug 2008 00:00:00 PDT
Imagine sucking water through a 300-foot straw; giant redwoods do this, in effect, every day. - Kartchner Caverns: Humidity (3mb)
Fri, 08 Aug 2008 00:00:00 PDT
This cave is very wet and its formations are still growing, so park officials use everything from misting systems to airlock doors to counteract and keep out the dry desert air of Arizona. - Kartchner Caverns: Intro (3mb)
Thu, 07 Aug 2008 00:00:00 PDT
Besides being beautiful, the Kartchner Caverns are also 95% alive, which means that the caves are wet and that their formations are still growing. - Science Diary: Grayling - Varying Conditions (3mb)
Wed, 06 Aug 2008 00:00:00 PDT
Low or high water, Arctic Grayling thrive in Alaska's Kuparik River. - Science Diary: Redwoods - Biodiversity (3mb)
Tue, 05 Aug 2008 00:00:00 PDT
Ferns, huckleberry bushes, even hemlocks make their home high atop giant redwoods. - Science Diary: Redwoods - Ecosystem Aloft (3mb)
Mon, 04 Aug 2008 00:00:00 PDT
When forest fires burn through a stand of redwoods, they can leave rotten, spongy pockets in which plants thrive. - Diatoms Nanotechnology - Transformation (3mb)
Fri, 01 Aug 2008 00:00:00 PDT
An innovative way is being developed to create nanomaterials - tiny bits of matter -using microscopic organisms called diatoms. - Diatoms Nanotechnology-Shell Game (3mb)
Thu, 31 Jul 2008 00:00:00 PDT
Diatoms are among the world's oldest and most ubiquitous creatures, and they may soon be an important part of one of the newest branches of science and technology. - Diatoms Nanotechnology - Redefining "Man-made" (3mb)
Wed, 30 Jul 2008 00:00:00 PDT
Nanoparticles are so tiny that the atoms inside them obey the laws of quantum mechanics and not the laws of the physical observable world. - Science Diary: Redwoods - Cleanup (3mb)
Tue, 29 Jul 2008 00:00:00 PDT
Outfitting a redwood with 300 pounds of research equipment is a great way to make discoveries. Taking it all down again is another story. - Science Diary: Redwoods - Battery (3mb)
Mon, 28 Jul 2008 00:00:00 PDT
When research equipment is wired into a giant redwood, an 80-pound battery must be hoisted 300 feet into the canopy.
