Making a Phone Call in Ancient Africa
Science Underground
English - February 21, 2016 10:00 - 2 minutes - 1.84 MB - ★★★★★ - 35 ratingsNatural Sciences Science Education earth science astronomy biology chemistry physics stem Homepage Download Apple Podcasts Google Podcasts Overcast Castro Pocket Casts RSS feed
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To send messages over long distances, the ancients used a drum. Recently, scientists have discovered how drum beats travel for miles with the help of the surface of the Nile.