Es gibt Menschen, die gerne permanente Sommerzeit hätten, weil es dann abends später dunkel wird. Das kann ich verstehen.
Wenn ihr wissen wollt, wie sich permanente Sommerzeit anfühlt, stellt euren Wecker für ein bis zwei Wochen auf eine Stunde früher und erlebt wie es ist, wenn es morgens eine Stunde später hell wird. Jetzt ist die beste Zeit herauszufinden, ob das wirklich das Richtige für euch ist.
I love closing out the year with this. 😊
On December 31, 1995, exactly 27 years ago today, legendary cartoonist Bill Watterson published his final 'Calvin and Hobbes' comic strip.
How beautiful and appropriate it was, and a timeless reminder of what we have before us in 2023. ❤️
Happy New Year, ya'll!
"The #study results show that only 7 of the 28 major #astronomical #observatory sites (sites that host a #telescope with a diameter of 3 meters or more) have a zenith #sky brightness with #light #pollution below the expected threshold of 1% of #natural #sky brightness".
https://phys.org/news/2022-12-quarters-major-observatories-affected-pollution.html
@raulclima...😑
Researchers from Italy, Chile and Galicia have studied and compared the light pollution levels at major astronomical observatories across the world. The study shows that light is polluting the sky above most observatories and that immediate action is needed to decrease the amount of contamination coming from artificial light. The work was published in Monthly Notices of the Royal Astronomical Society.
The visual perception of the natural night sky in many places of the world is strongly disturbed by anthropogenic light. Part of this artificial light is scattered in the atmosphere and propagates towards the observer, adding to the natural brightness and producing a light polluted sky. However, atmospheric scattering is not the only mechanism contributing to increase the visual skyglow. The rich and diverse biological media forming the human eye also scatter light very efficiently and contribute, in some cases to a big extent, to the total sky brightness detected by the retinal photoreceptors. In this paper we quantify this effect and assess its relevance when the eye pupil is illuminated by light sources within the visual field. Our results show that intraocular scattering constitutes a significant part of the perceived sky brightness at short distances from streetlights. These results provide quantitative support to the everyday experience that substantial gains in naked-eye star limiting magnitudes can be achieved by blocking the direct light from the lamps that reaches the eye pupil. Urban lighting designs that reduce the illuminance over the eye pupil and locate the sources at large angles with respect to the visual axis are expected to help decreasing the artificial intraocular skyglow.
Qasim Rashid, Esq.
Grantscherm
Rui Borges
Salva Bará
Rita Armstrong