Cities only occupy about 3% of the Earth's total land surface, but they bear the burden of the human-perceived effects of global climate change, researchers said. Global climate models are set up for big-picture analysis, ...
Earth Sciences
Jan 4, 2021
1
71
Alkaline water electrolysis has been touted as a path to establish a hydrogen economy by converting intermittent renewable energies into clean hydrogen-based chemical energy.
Materials Science
Nov 24, 2020
4
1148
The gravitational force in the Universe under which it has evolved from a state almost uniform at the Big Bang until now, when matter is concentrated in galaxies, stars and planets, is provided by what is termed 'dark matter." ...
Astronomy
Oct 28, 2020
65
3689
Electrolysis, passing a current through water to break it into gaseous hydrogen and oxygen, could be a handy way to store excess energy from wind or solar power. The hydrogen can be stored and used as fuel later, when the ...
Materials Science
May 26, 2020
3
1516
Laser-induced ionization in matter—gas, cluster, liquid, and solid—occurs when a laser pulse with sufficient intensity is focused into a target material, creating electrons and ions through nonlinear processes of laser-matter ...
Optics & Photonics
Apr 27, 2020
0
8
To generate renewable energy takes more space than one might think. New research by environmental scientist Paul Behrens and master's student John van Zalk shows how much space is needed for nine specific types of energy. ...
Energy & Green Tech
Aug 28, 2018
239
23
From its early beginnings during and after World War II, the commercial industry for polymers – long chain synthetic molecules of which "plastics" are a common misnomer – has grown rapidly. In 2015, over 320 million tons ...
Environment
Aug 9, 2018
1
9
Metal oxidation is harnessed in many industrial applications. KAUST researchers have modeled the boundary between two metal oxides to reveal their metallic properties, which could lead to positive applications in electronics.
General Physics
Jun 4, 2018
0
6
Hall thrusters (HTs) are used in earth-orbiting satellites, and also show promise to propel robotic spacecraft long distances, such as from Earth to Mars. The propellant in a HT, usually xenon, is accelerated by an electric ...
Plasma Physics
Aug 15, 2017
3
1053
Star formation environments can be roughly grouped into three types, categorized by the density of their gas (or more precisely, the projected "surface" density of the gas, which is easier to determine than the conventional ...
Astronomy
Feb 8, 2016
1
58
