Quicklime may be able to store large quantities of heat, like a large, natural battery.
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Deep in the mountains of the Arabah Valley lies Petra. The vast city is carved into the pinkish sandstone near the Dead Sea and the Israel-Jordan border. In ancient times, Arab tribesmen dug tunnels to protect the area from flash floods. Today, flooding is still a life-threatening concern. Read More
Bees are creating a buzz. Honeybees, bumblebees, blue orchard bees—all are important for pollination. Folks at North Dakota State University want to help bees thrive. They’re paying special attention to the alfalfa leafcutter bee. The little bug has a big mission: multiplying alfalfa seeds. Read More