SciFri Radio: General Physics

Particles of Science

Itsy Bitsy Spacecraft

SciFri guest Aaron Rowe explains the advantages of smaller spacecraft: Listen. Find out about a new development in the micro craft design--a material that can change color depending on whether the craft is in sun or shadow to reflect or absorb light. Listen to Rowe.

This Just In: Cattail Fuel

Ethanol isn't all about corn. SciFri guest David Blume suggests fuel from cattails. Listen here. They also clean the water and grow like weeds. Learn more.

This Just In

A positive drug test may not mean doping, according to SciFri guest Donald Berry. Berry said that the drug test being used to evaluate athletes has not been evaluated properly--it's not clear what its margin of error is. Listen to Berry explain. Ira asked why the doping test is not more scientific and this is what Berry said: Listen here.

Berry Power

New research explains why cranberry juice may ward off urinary tract infections. The berry beverage was shown to prevent disease-causing bacteria from attaching to urinary tract cells in the body.

SciFri Newsbriefs: General Physics

Newsbrief: Gravity Anomaly Solved
The gravitational pull near Hudson Bay, Canada is unusually weak. A new study explains why.

SciFri Videos: General Physics

Video: Mildred Dresselhaus
On March 16, 2007, Ira spoke with Mildred Dresselhaus, a prominent physicist who has focused her research on nanotechnology. She has also worked to...

Video: Physics of Basketball
Lots of fun with hoops and balls and stuff. How does physics impact your game? John Fontanella, a physicist at the U.S. Naval Academy and author of...