Reflective ruled diffraction grating is a kind of optical glass substrate composed of dense, equidistant parallel lines, and the surface is coated with aluminized, multi-layer dielectric or other ...

Belgium's food safety agency issued a warning to residents to not turn their Christmas trees into food after a city's recycling recommendations included using the needles in recipes.

To make sure your tree stays looking as good as new, we talked to organization experts to find the best Christmas tree storage solutions for trees of any size.

The Pacific Northwest leads the nation in Christmas tree production, Chastagner said. Oregon produces 4.7 million Christmas trees each year, which is more than 30% of Christmas trees in the U.S.

The Rockefeller Christmas Tree Is Repurposed After the Holidays. Here's How Standing 70 to 100 feet, a different Norway spruce attracts crowds to Rockefeller Center every holiday season.

The undeveloped lot at the corner of Seventh Avenue and Lawton Street is quiet and lifeless most of the year. But, at year’s end, pumpkins and Christmas trees line a dirt path, giant candy canes stand ...

Learn which molecules are responsible for giving Christmas trees their distinct, crisp-yet-spicy scent ...

Skinny Christmas trees combine affordability and practicality for small spaces. Social media calls it “Treezempic,” but experts say there’s minimalist appeal.

Is my Christmas tree to blame? The holiday season can be a time filled with joy, mirth and — sometimes — itchy eyes, irritated skin, congestion and wheezing.

How Christmas Trees Could Become a Source of Low-Carbon Protein In the nascent field of mycoforestry, tree-growers are combining saplings with symbiotic fungi to grow timber and mushrooms on the ...

Christmas Trees Might Last Longer if Given Hot Water — But Opinions Differ Experts disagree on this long-standing "life hack".