Do plants get SUNBURNS?! This is Sandra Tsing Loh with the Loh Down on Science. It’s great to have some fun in the sun… for humans and vegetation alike! We get some vitamin D, they get some energy to make food… But sunlight on the UV spectrum is dangerous… It
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Plastic ocean trash…Now you see it! Now you don’t? This is Sandra Tsing Loh with The Loh Down on Science. More than twelve million tons of plastic gets lost in the ocean every year! That’s the weight of almost SIXTY THOUSAND blue whales! Can’t we make some of that plastic
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Can cameras “see” invisible light? This is Sandra Tsing Loh with The Loh Down on Science. My sunscreen protects against U-V-A and U-V-B, but what about U-V-C!?!?!? Yes, there is a THIRD type of U-V light! Fortunately we are protected from it by the earth’s ozone. UNfortunately, there are weak
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