Sunday, October 13, 2019

Big Picture Science for Oct. 14, Go With the Flow













Big Picture Science - Go With the Flow

(Repeat) Solid materials get all the production credit.  Don’t get us wrong, we depend on their strength and firmness for bridges, bones, and bento boxes.  But liquids do us a solid, too.  Their free-flowing properties drive the Earth’s magnetic field, inspire a new generation of smart electronics, and make biology possible.  But the weird thing is, they elude clear definition.  Is tar a liquid or a solid?  What about peanut butter?

In this episode: A romp through a cascade of liquids with a materials scientist who is both admiring and confounded by their properties; how Earth’s molten iron core is making the magnetic north pole high-tail it to Siberia; blood as your body’s information superhighway; and how a spittlebug can convert 200 times its body weight in urine into a cozy, bubble fortress.

Guests:

This repeat podcast was previously released on 04/08/2019

This podcast will be released this coming Monday at - http://bigpicturescience.org/

You can listen to this and other episodes at http://bigpicturescience.org/, and be sure to check out Blog Picture Science, the companion blog to the radio show.

Sunday, October 06, 2019

Big Picture Science for Oct. 07, 2019 - Battling Bacteria













Big Picture Science - Battling Bacteria

We can’t say we weren’t warned.  More than 75 years ago, bacteriologist Rene Dubos cautioned that misuse of antibiotics could breed drug-resistant bacteria – and he has been proved prescient.  In this episode: the rise of superbugs, why we ignored the warnings about them, how some are enlisting an old therapy to fight back, and whether we’ll heed history’s lessons in the face of a future pandemic.  Plus, a weird unforeseen effect of antibiotics being investigated at the Body Farm.

Guests:

Download podcast at - http://bigpicturescience.org/episodes/battling-bacteria

You can listen to this and other episodes at http://bigpicturescience.org/, and be sure to check out Blog Picture Science, the companion blog to the radio show.