For plants, sunlight can be a double-edged sword. They need it to drive photosynthesis, the process that allows them to store solar energy as sugar molecules, but too much sun can dehydrate and damage their leaves.
Plants & Animals
Mar 10, 2020
0
302
Semiconductors convert energy from photons (light) into an electron current. However, some photons carry too much energy for the material to absorb. These photons produce "hot electrons," and the excess energy of these electrons ...
General Physics
Nov 15, 2019
0
367
Scientists from the University of Groningen (the Netherlands) and the University of Würzburg (Germany) have investigated a simple biomimetic light-harvesting system using advanced spectroscopy combined with a microfluidic ...
Nanomaterials
Oct 10, 2019
0
140
Over the past century, increased greenhouse gas emissions have given rise to an excess of energy in the Earth system. More than 90% of this excess energy has been absorbed by the ocean, leading to increased ocean temperatures ...
Earth Sciences
Jan 7, 2019
3
146
Plants rely on the energy in sunlight to produce the nutrients they need. But sometimes they absorb more energy than they can use, and that excess can damage critical proteins. To protect themselves, they convert the excess ...
Biochemistry
Dec 5, 2018
0
352
Imaging Earth from space is a favourite pastime for astronauts on the International space Station. They can set their cameras to automatically snap photos while they work, but often make time to Earth-gaze and take photos ...
Space Exploration
Nov 14, 2018
0
11
Bitcoin recently turned 10 years old. In that time, it has proved revolutionary because it ignores the need for modern money's institutions to verify payments. Instead, Bitcoin relies on cryptographic techniques to prove ...
Internet
Nov 7, 2018
1
36
Photons with energy higher than the band gap of the semiconductor absorbing them give rise to what are known as hot electrons. The extra energy in respect to the band gap is lost very fast, as it is converted into heat and ...
Condensed Matter
Jan 16, 2018
2
63
About three out of every four Americans support hotly debated net energy metering policies, which allow residents with wind turbines and solar panels to sell excess energy back to the grid at retail rates, according to a ...
Energy & Green Tech
Sep 7, 2017
0
30
LMU researchers have identified a set of proteins that enable plants to adjust their photosynthesis in response to fluctuating light intensities so as to make the best use of the light available.
Biotechnology
Dec 22, 2016
0
533
