If global warming reaches or exceeds two degrees Celsius by 2100, University of Western Ontario's Joshua Pearce says it is likely that mainly richer humans will be responsible for the death of roughly one billion mainly poorer ...
Environment
Aug 28, 2023
46
1125
The field of integrated photonics has taken off in recent years. These microchips utilize light particles (photons) in their circuitry as opposed to the electronic circuits that, in many ways, form the backbone of our modern ...
Optics & Photonics
Apr 12, 2023
0
52
Scientists from St. Petersburg University together with their foreign colleagues have created the world's first two-dimensional ferromagnetism in graphene. Use of the obtained magnetic state of graphene can become the basis ...
Nanophysics
Dec 16, 2022
0
385
The first comprehensive comparison of 'degrowth' scenarios with established pathways to limit climate change highlights the risk of over-reliance on carbon dioxide removal, renewable energy and energy efficiency to support ...
Environment
May 11, 2021
22
273
Traditional lenses—like the ones found in eyeglasses—are bulky, heavy and only focus light across a limited number of wavelengths. A new, ultrathin metalens developed by researchers at the University of California, Berkeley, ...
Condensed Matter
Jun 26, 2020
3
980
The COVID-19 pandemic and subsequent lockdowns have led to a record crash in emissions. But it will be emission levels during the recovery—in the months and years after the pandemic recedes—that matter most for how global ...
Environment
Jun 10, 2020
1
279
Thanks to optical signals, mails and data can be transmitted rapidly around the globe. But also exchange of digital information between electronic chips may be accelerated and energy efficiency might be increased by using ...
Optics & Photonics
Feb 18, 2014
0
0
Energy consumption is growing rapidly in the 21st century, with rising energy costs and sustainability issues greatly impacting the quality of human life. Harvesting energy directly from sunlight to generate electricity using ...
Optics & Photonics
Aug 14, 2013
0
0
(Phys.org) —For some solar cells, the future may be fluorescent. Scientists at Yale have improved the ability of a promising type of solar cell to absorb light and convert it into electrical power by adding a fluorescent ...
Optics & Photonics
May 9, 2013
1
0
(Phys.org) —Japan's New Energy and Industrial Technology Development Organization (NEDO) has tested a caravan of self driving trucks. They put four trucks on the road, with the first truck driven by a human, followed by ...
