Clumps of debris from a disrupted planetesimal are irregularly spaced on a long and eccentric orbit around the white dwarf. Individual clouds of rubble intermittently pass in front of the white dwarf, blocking some of its light. Because of the various sizes of the fragments in these clumps, the brightness of the white dwarf flickers … Read more
This illustration shows natural (coral reef) and soft (replanted mangrove) measures, forming a hybrid defense with the concrete sea wall. Nature-based solutions were recognized as a key option to tackle the “triple planetary crisis” of climate change, pollution and biodiversity loss at the most recent United Nations climate conference, COP28, held in 2023. Credit: 2024, … Read more
Credit: Pixabay/CC0 Public Domain Remote work could cut hundreds of millions of tons of carbon emissions from car travel—but at the cost of billions lost in public transit revenues, according to a new study. Using the latest data on remote work and transportation behavior since the pandemic upended work arrangements, researchers at the University of … Read more
The moon eclipses the sun during the total solar eclipse in Mazatlan, Sinaloa state, Mexico. The day died and was reborn a few minutes later Monday in the southern United States. There were hugs, tears and gasping as people watched the moon fully eclipse the sun and briefly plunge the world into darkness. About 2,000 … Read more
Mechanism of FLocculation via Orbital Acoustic Trapping (FLOAT) method for the rapid isolation and efficient concentration of EVs. Credit: Microsystems & Nanoengineering (2024). DOI: 10.1038/s41378-023-00648-3 Extracellular vesicles (EVs) have emerged as promising biomarkers for non-invasive disease diagnostics, offering an alternative to conventional biopsies. However, the challenge has been the efficient and pure isolation of EVs … Read more
Credit: Pixabay/CC0 Public Domain Have you felt overwhelmed recently? Stressed and exhausted from the busy treadmill of modern life? You’re not alone. Global polls suggest 76% of people experience burnout at least sometimes at work. Earth is utterly exhausted too, or so political theorist and author Ajay Singh Chaudhary argues. As an environmental scientist who … Read more
Credit: Pixabay/CC0 Public Domain A new study led by Jarmo Kikstra, a research scholar in the IIASA Energy, Climate, and Environment Program, explores whether reducing production and consumption growth could make a significant contribution to resolving the climate crisis. As the effects of climate change become more severe and the scale of environmental damage gains … Read more
Full-color holographic near-eye display employs an eyepiece lens to magnify 3D images, which are then recorded by adjusting the focus of the camera lens. A fast hologram is then generated using a Split-Lohmann lens-based diffraction algorithm. Credit: Advanced Photonics Nexus (2024). DOI: 10.1117/1.APN.3.3.036001 Holographic displays offer a promising avenue for achieving lifelike 3D reproductions with … Read more
A selection of the Fitzwilliam Museum coins which were studied, including coins of Charlemagne and Offa. Credit: The Fitzwilliam Museum, University of Cambridge Byzantine bullion fueled Europe’s revolutionary adoption of silver coins in the mid-7th century, only to be overtaken by silver from a mine in Charlemagne’s Francia a century later, new tests reveal. The … Read more
Credit: Pixabay/CC0 Public Domain Donations for a political candidate can be motivated by support for that candidate or by opposition to the candidate’s opponent. New research published in Social Science Quarterly found that female Democrats and non-white male Democrats in the United States have a fundraising advantage when running against a white male Republican. Female … Read more
