This is Scientific American 60 second Science, I am Sophie Bushwick. Got a minute?
英语培训 英语口语
Medicinal (tablets) are nothing new. Doctors have been dispensing pills for thousands of years. And now archaeologists have turned up some of those ancient medicines, which were preserved in a shipwreck for close to two millennia.
The 2nd-century Pozzino wreck was discovered in 1974 off the coast of Italy. It’s cargo included medical equipment like a cupping (vessel), iron probe, and tin boxes of supplies. in one of those boxes, researchers recovered five gray tablets. Now, they’ve analyzed the (antique) medication. The work is in the Proceedings of the National Academy of Sciences. 电话英语 易说堂英语
The pills primarily contained zinc compounds, probably the active medicinal ingredients. But researchers also detected starch, pollen, charcoal, fats and linen (fibers). Those fibers helped the tablets hold their round, loaf-like shape, which may be the key to the medication's use: the Greek word meaning “small round loaves” also inspired the word collyrium, or eye-wash. The pills were probably either dissolved in liquid or ground into a powder and used to treat eye (conditions). Who knows, maybe Hippocrates used them on his pupils.
Thanks for the minute for Scientific American 60 second science, I am Sophie Bushwick
电话英语口语免费体验
http://www.e-say.com.cn/apply7/