The Power of the Sun and Salt | Breakthrough

The innovative company that built the plant is going to use 10,000 mirrors to focus the sun’s rays onto the apex of a 600 foot tower filled with salt. That salt will melt and the resulting heat will drive turbines that provide electric power.
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Saving Big Cats Starts With Kids

Lions, tigers, cheetahs and other big cats are in serious trouble. There are fewer wild lions left than there are rhinos, and there are more tigers in captivity than in the wild. See how National Geographic Explorer Amy Dickman is working to conserve these iconic species. Through National Geographic’s Big Cats Initiative Sister School Program, she teaches kids in Africa and the United States about big cats and how they can help save them. ... Read More إقرأ المزيد | Share it now!