Cleaning solar panels often not worth the cost, engineers find

Don't hire someone to wash your dirty solar panels. That's the conclusion of a study recently conducted by a team of engineers at the University of California, San Diego. Their findings were published in the July 25 online ...

Generating electricity from vibrations in road surface works

A pilot research project into vibration energy on the N34 provincial motorway near Hardenberg in the eastern Netherlands has shown that vibration energy as a local energy source is a sustainable alternative for the batteries ...

Technique to recover phosphorus from urine

Phosphorus, number 15 on the periodic table, can be highly toxic and flammable and has been used in warfare as an incendiary device, yet it is also essential for life.

Tons of acorns? It must be a mast year

If you have oak trees in your neighborhood, perhaps you've noticed that some years the ground is carpeted with their acorns, and some years there are hardly any. Biologists call this pattern, in which all the oak trees for ...

New US climate map shows temperature changes in HD

If you're interested to see how warm your neighborhood will look like at 2090, here's a chance. There's new data available that has monthly climate projections for the continental United States at the size of a neighborhood, ...

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