Gum Genealogy

What can chewing gum reveal about YOU? This is Sandra Tsing Loh with the Loh Down on Science. Yuck, nothing worse than finding old gum on your shoe! Unless you’re an archaeologist… Hannes Schroeder at the University of Copenhagen thinks GUM is as good as gold! His team discovered chewed

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The Tooth is Out There

Hey…do I have something in my teeth? This is Sandra Tsing Loh with the Loh Down on Science. Dental records are often used for identification. What other tales can our teeth tell about us?? Christina Warinner at the Max Planck Institute and fellow researchers picked through some plaque history. While

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Mystery Volcano

Can a volcano cause global… cooling? This is Sandra Tsing Loh with the Loh Down on Science, going back in time to… The early 1800s. When it’s cold! Throughout Europe and North America, there’s frost, and famine. That cold spell was blamed on the eruption of Indonesia’s Tambora volcano, in

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Photo Finish

Picture the past… If you can! But can you? This is Sandra Tsing Loh with the Loh Down on Science. The first photographs were daguerreotypes. They were developed using mercury and gold instead of silver, which came later. These pieces of history are tarnished and may be lost forever! Or…

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Golden Fleece

There’s gold in them thar … sheep??? This is Sandra Tsing Loh with the Loh Down on Science. Remember Jason and the Argonauts, from Greek mythology – or from the crazy 1963 movie? Sailing to the ends of the earth in search of a Golden Fleece? What the heck is

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Holiday Snaps

What now? Family vacation photos . . . for science? This is Sandra Tsing Loh with the Loh Down on Science. Time-lapse videos that span years or decades can tell us a lot about the world. They show cities growing, ecosystems drying, and even geologic changes. But who’s going to

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