Salva Bará

@salvabara.bsky.social

Physicist. Light pollution researcher - Former Prof. Titular at Univ. de Santiago de Compostela, Galiza (European Union) Born at 317 ppm CO2 https://salvabara.blogspot.com/

A sección transversal da Estación Espacial internacional varía entre 700 m2 e 2 300 m2, segundo como estea orientada Centros de datos en trámite (USA): Space X : 1 000 000 de satélites con sección transversal máxima (STM) de 1 500 m2 Cowboy Space : 20 000 sats con STM de 3 870 m2 (1/2)

“I hope that we will look back at Cal/OSHA’s emergency standard as the beginning of the end of this terrible quartz countertop silicosis epidemic,” said David Michaels, a former head of federal OSHA who teaches at the George Washington University School of Public Health.

California Regulators Unveil Plan to Ban New Quartz Countertops Amid Rising Worker Deaths | KQED

The Cal/OSHA draft would give fabrication shops nearly six months to phase out inventory of the popular countertop material, which is linked to a deadly lung disease among stonecutters.

kqed.org

Do large space mirrors pose a potential risk to the retina and visual performance? Short answer: certainly, they could. The details depend on several factors. If you're interested, you can find an analysis of this topic here: doi.org/10.5281/zeno...

Retinal hazards and glare from space mirrors

Projects of orbital mirrors reflecting sunlight towards Earth raise reasonable concerns regarding photochemical and thermal retinal hazards and detrimental effects on visual performance (disability gl...

doi.org

Poden os grandes espellos espaciais para iluminar a Terra pola noite presentar riscos para a retina e o rendemento visual? Si, por varios motivos. Os detalles dependen de varios factores. Se che interesa o tema, aqui tes algunha información adicional: doi.org/10.5281/zeno...

Retinal hazards and glare from space mirrors

Projects of orbital mirrors reflecting sunlight towards Earth raise reasonable concerns regarding photochemical and thermal retinal hazards and detrimental effects on visual performance (disability gl...

doi.org

"The next astronauts to walk near the Moon’s south pole will bring drills, rovers, spacesuits—and an unavoidable piece of Earth. Scientists have assumed the Moon would quickly destroy most microbial stowaways. But a new NASA-led study is here to say: Not so fast." www.zmescience.com/science/news...

Earth Microbes Could Survive on the Moon's Poles for Weeks and NASA Scientists Are Worried

Some Earth microbes may survive lunar shadows, complicating future missions but creating an extraordinary experiment.

zmescience.com

USA is rapidly advancing towards the designation of cislunar space as a warfighting environment. (1/4) "The Space Force is critical to preparing the Department of War for evolving warfighting conditions and expanding our capabilities." www.whitehouse.gov/fact-sheets/...

Fact Sheet: President Donald J. Trump Establishes a Commission to Design the United States Space Academy

BUILDING THE NEXT GENERATION OF AMERICAN SPACE LEADERS: Today, President Donald J. Trump signed an Executive Order to create a Presidential

whitehouse.gov

New Ecological Environment Code of the People's Republic of China (Aug 15th) "The code also addresses the issue of light pollution. Urban landscape lighting, the glass curtain walls of buildings, outdoor advertising screens and light boxes,... " (1/2) www.chinadaily.com.cn/a/202603/18/...

New environment code quality of life enhancer

China's Ecological and Environmental Code was adopted on March 12, and it will come into effect from Aug 15.

chinadaily.com.cn

UN premises are inviolable. The forcible and unauthorised entry of Israeli Forces into UNRWA’s Kalandia Training Centre is deeply alarming and threatens access to education and training for young #Palestine Refugees. Their opportunities and future must be protected. www.unrwa.org/newsroom/off...

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