科学与环境

Mountaineer: 'Tenzing biopic made me wonder what he would think if he could return to the mountain today'

来源: Phys.org - latest science and technology news stories · 发布于

Mountaineer: 'Tenzing biopic made me wonder what he would think if he could return to the mountain today'
来源: Phys.org - latest science and technology news stories

Seventy-three years ago, Tenzing Norgay stood on top of Everest, known as Chomolungma in Tibetan, which roughly translates as "Goddess Mother of the World."

Seventy-three years ago, Tenzing Norgay stood on top of Everest, known as Chomolungma in Tibetan, which roughly translates as "Goddess Mother of the World."

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Food testing reveals how diet can add to exposure to 'forever chemicals'
科学与环境

Food testing reveals how diet can add to exposure to 'forever chemicals'

Per- and polyfluoroalkyl substances (PFAS)—a vast family of chemicals used largely for their nonstick, water-repellent and grease-resistant properties—are called "forever chemicals" because of their remarkable resistance to degradation. They are now ubiquitous in our environment.

Phys.org - latest science and technology news stories ·

Aspens 'remember' past drought in their leaves, 3-year experiment finds
科学与环境

Aspens 'remember' past drought in their leaves, 3-year experiment finds

Drought is written into trees, appearing as narrow bands in their annual growth rings. But aspen may go farther, creating "functional memories" of previous dry years reflected in the chemistry of their leaves, according to new research by University of Utah biologists.

Phys.org - latest science and technology news stories ·