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Announcing Sacred Mounds, a novel of Magical Realism and Historical Fantasy from Jim Metzner, with a foreword by Hutke Fields, principal chief of the Natchez Nation.
Cyclonic hordes of insects, a telepathic despot, body-swapping sex - just a few of the surprises Salvador Samuels encounters when he is swept back to pre-colonial times, walking in the moccasins of a blind Indian - who, in turn, has been transported into Salvador's body in present-day America. Sacred Mounds Book Cover Four hundred years apart, they are bound by a mission to rescue our world, aided by the mysterious presence of the mounds. Thousands of these ancient earthworks once dotted the landscape of North America. We still don't know why they were created. Sacred Mounds suggests they are as important today as when they were made over a thousand years ago. Sacred Mounds weaves the stories of two men, each a stranger in a strange land. With the help of two remarkable women, they must find a way to save our planet and return home.
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Nanotechnology Meets Clams: The Pulse of the Planet daily radio program offers free legal online mp3 downloads, exploring the world of sound in nature, culture and science, with audio adventures, world music, extraordinary sound portraits, science diaries, and nature ring-tones; an amazing sonic experience.



Airdate: Sep 20, 2017
Scientist: Peter Vikesland

Nanotechnology Meets Clams

Nanotechnology Meets Clams
Are nanoparticles from products effecting the environment?

Transcript:
Nanotechnology Meets Clams

Ambience: Lab Sounds - Bubbles in water

Nanoparticles tiny bits of matter with useful properties, are now found in hundreds of products from suntan lotion to toothpaste. Scientists are finding ways to see how these nanoparticles might effect the environment. I'm Jim Metzner and this is the Pulse of the Planet.

Vikesland: Clams, which are filter feeding organisms, they suck large volumes of water through their bodies everyday as part of their normal life cycle. We're looking at how this filter feeding process results in the potential accumulation of nano particles within the clam's body.

We're in a laboratory at Virginia Tech with Peter Vikesland, a professor of Civil and Environmental Engineering.

Vikesland: So the clams could be - you could think of the as sentinels. What we're trying to see is, are they going to remove nano particles that might be present out in the environment, or whether they are just simply pulling nanoparticles out of suspension and then re-releasing them within their feces.

So what we have found with the clams is that they take nano particles out of suspension, so out of the water, retain a good percentage of them within their actual tissue, and then what they don't retain they re-release to the water. But instead of the nano particles being individual and all by themselves, they're now associated with one another and accumulate at the bottom of the reaction vessel.

The data to date suggests that the total numbers of manufactured nano particles that are out in waterways are really low. Toxicity doesn't seem to be that high. so I think from a real world perspective there isn't that much concern as of yet.

Pulse of the Planet is made possible in part by the Center for Earth and Environmental Nanotechnology and the National Science Foundation. You can hear this and previous programs on our podcast.