News tagged with low density

Can dark energy be explained by symmetrons?

(Phys.org)—A field that permeates the universe and gives rise to a new force, or "fifth force," between massive objects may be a candidate for dark energy and an explanation for why the expansion of the ...

Jan 28, 2013 feature
4 / 5 (32) 60 | with audio podcast

One in five U.S. teenagers has high cholesterol

(PhysOrg.com) -- A study by the U.S. Centers for Disease Control and Prevention (CDC) and published in their Morbidity and Mortality Weekly Report, has found that over 20% of teenagers in the U.S. have elevated cholesterol levels ...

Jan 25, 2010 report
3 / 5 (3) 1 | with audio podcast

Recycling farm plastics gains momentum

(Phys.org) —On today's farms, plastic is as ubiquitous as dirt. From plastic film that wraps silage to leftover pesticide containers to the thin trays that hold seedlings, plastic plays an important role. ...

May 31, 2013
5 / 5 (1) 0