News tagged with maple

Lockheed Martin develops maple-seed-like drone

The seeds that drop from maple trees each fall, whirring softly to the ground like silent one-winged helicopters, are the inspiration for a new kind of flying machine that could be useful for military information-gathering.

Aug 15, 2011 4.3 / 5 (12) 39

Iron legacy leaves soil high in manganese

(PhysOrg.com) -- Iron furnaces that once dotted central Pennsylvania may have left a legacy of manganese enriched soils, according to Penn State geoscientists. This manganese can be toxic to trees, especially ...

Dec 10, 2010 3.5 / 5 (2) 1 | with audio podcast

Forestry officials on urgent mission: Beetles

(AP) -- Forestry officials in the Northeast are on an urgent mission, tracking thousands of Massachusetts residents as they search for tree-eating stowaway insects they may have carried to campgrounds or ...

May 22, 2009 5 / 5 (1) 1