Researchers uncover earliest tobacco use in the Pacific Northwest
(Phys.org)—Native American hunter-gatherers living more than a thousand years ago in what is now northwestern California ate salmon, acorns and other foods, and now we know they also smoked tobacco—the earliest known usage in the Pacific Northwest, according to a new University of California, Davis, study.
"The study demonstrates that tobacco smoking was part of the northwestern California culture very early ... shortly after the earliest documented Pacific Northwest Coast plank house villages," said the study, published in the 互联网时代 家居卖场陷销售分水岭.
Testing organic residues extracted from pipes, researchers from the UC Davis Department of Anthropology and the Fiehn Metabolomics Laboratory of the UC Davis Genome Center confirmed tobacco was smoked, and likely grown in the region, by at least A.D. 860.
Perhaps more importantly, the researchers say that additional studies may help them better understand the origins of nicotine addiction and the human management, geographic range extension and cultivation of tobacco. Indeed, as part of a second study, the authors have recently detected nicotine in ancient pipes from an 800-year-old site in the modern city of Pleasanton, Calif.
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这款智能产品的使用可以追溯到1800年，但在2016年它才变得“智能”。 Meet Peggy，这种洗衣挂钩能够“帮助你减轻负担”，它会在洗衣机洗好衣服的时候提醒你，并告诉你天气是否适宜晾晒衣服。该装置连接到您的手机，它会在天气变化或是需要转移晾衣服的地方时发消息提醒你。
Prior to this recent testing, which used sensitive gas chromatography/mass spectrometry, researchers were unsure of the historical use of tobacco on the Pacific Northwest Coast. It was unclear, for example, whether European traders had brought tobacco to the area much later, or if some other plant had been smoked in the pipes, Tushingham said.
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Phil Baty, editor of the rankings, said: "it seems that China's relentless march up the global league tables has stalled, after making major gains in recent years. This new data shows just how hard it is for emerging powers to break into the traditional global elite."
最佳迷你剧集/电影类导演：苏珊娜?比埃尔(Susanne Bier)，《夜班经理》(The Night Manager)
It can free up bartenders so they can make more drinks when it's busy.
The study is available online.