Sun.Dec 19, 2021

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The ten-billion-dollar gamble: How the JWST shields itself from the Sun

Physics World

Because the James Webb Space Telescope (JWST) operates in infrared light, stray thermal emissions from the Sun, Earth and even the spacecraft itself could cloud its vision. To keep them out, mission scientists designed an intricate, tennis-court sized sunshield that is quite unlike anything NASA has attempted to deploy in space before. The sunshield comprises five layers, or membranes, of an aluminium-coated polymer called Kapton that is widely used in space exploration thanks to its stability a

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Requirement for adults to wear masks in schools has major impact on Covid-19 transmissions, study finds

Frontiers

By Suzanna Burgelman, Frontiers science writer. Image: Halfpoint/Shutterstock. Adults wearing masks may decrease Covid-19 outbreaks at schools and preschools, shows a new study published in Frontiers in Public Health. The study found that the first identified cases (index cases) in schools were predominantly children, but outbreak events were more severe when an adult was the index case.

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Quantum effects make magnetene surprisingly slippery

Physics World

The ultra-slippery nature of a two-dimensional material called magnetene could be down to quantum effects rather than the mechanics of physical layers sliding across each other, say researchers at the University of Toronto in Canada and Rice University in the US. The result sheds light on the physics of friction at the microscopic scale and could aid the development of reduced-friction lubricants for tiny, implantable devices.

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Environment & Energy Educational Opportunities For Students & Adults

PA Environment Daily

Opportunities to learn more about environmental and energy issues affecting Pennsylvania for students and adults-- -- Registration Now Open For Keystone Coldwater Conference & PA Chapter of the American Fisheries Society Meeting Feb. 25-26 [PaEN] -- EPA Accepting Nominations For Presidential Innovation Award For Environmental Educators [PaEN] -- Nominations For President’s K-12 Environmental Youth Award Now Being Accepted By EPA [PaEN] -- PA Master Naturalist To Offer Spring Training Courses

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Implementing D.E.J.I. Strategies in Energy, Environment, and Transportation

Speaker: Antoine M. Thompson, Executive Director of the Greater Washington Region Clean Cities Coalition

Diversity, Equity, Justice, and Inclusion (DEJI) policies, programs, and initiatives are critically important as we move forward with public and private sector climate and sustainability goals and plans. Underserved and socially, economically, and racially disadvantaged communities bear the burden of pollution, higher energy costs, limited resources, and limited investments in the clean energy and transportation sectors.

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Readers Respond to the August 2021 Issue

Scientific American

Letters to the editor from the August 2021 issue of Scientific American. -- Read more on ScientificAmerican.com.

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61 New Stories - REAL Environmental & Conservation Leadership In PA

PA Environment Daily

Here are 61 new stories in the PA Environment Digest about individuals, groups, local governments, farmers, businesses, watershed groups and many more working all across Pennsylvania to restore and protect the environment and show others the beauty that surrounds us. Thank you for your leadership! Is Your Story Being Told? -- Bay Journal: Chesapeake Bay Program Figures Show PA Led Region In 2020 Cleanup Progress [PaEN] -- Gov.

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ESG Accelerates Greenwashing

Greenbuilding Law

A growing number of American businesses and consumers are looking to invest in and purchase ESG friendly companies and their products and services. Companies have responded with ESG disclosures touting the environmental and social benefits of what they’re selling. Sidestepping for a moment those companies that set out to intentionally deceive other about their ESG bonafides, from time to time, what companies think their ESG claims mean and what others really understand are two different things.

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Sunday PA Environment & Energy NewsClips 12.19.21

PA Environment Daily

NOTICE PA Environment Digest Is Putting The Best Links To Environment & Energy Articles and NewsClips Here. Is Your Story Being Told? House returns to session Jan. 4, 10, 11, 12, 24, 25, 26 -- Committee Schedule Senate returns to session Jan. 4, 18, 19, 24, 25, 26 -- Committee Schedule TODAY’s Calendar Of Events -- 61 New Stories - REAL Environmental And Conservation Leadership In PA [PaEN] -- Environment & Energy Educational Opportunities For Students And Adults [PaEN] -- PA Capitol New

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PA Capitol News: Top 10 Stories From Harrisburg Last Week

PA Environment Daily

Because In Politics Everything Is Connected To Everything Else-- -- New Voting Districts - Senate, House -- PA Cap-Star: 2022 PA Incumbent Retirement And Primary Tracker -- PA Cap-Star: Reapportionment Panel Approves New Senate, House Voting District Maps That Leaves Incumbents In The Lurch -- TribLive Editorial: Republicans Shouldn’t Overreact To New Proposed Senate, House Voting Districts -- ScrantonT Editorial: Proposed Voting District Maps Fairer Than Current Districts -- Inquirer: Democrats