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The isoprene concentration in the air is an objective indicator for setting the age rating of films
A measurable criterion now exists for determining the age rating of films. A group of scientists at the Max Planck Institute for Chemistry in Mainz has found that the concentration of isoprene in cinema air correlates with the cinema industry‘s voluntary classification of films. Evidently, the ...
You turn on a switch and the light switches on because electricity "flows". The usual perception is that this is like opening a faucet and the water starts to flow. But this analogy is misleading. The flow of water is determined by the theory of hydrodynamics, where the behavior of the fluid ...
Researchers develop method to structure surfaces using visible light
The functionalization of surfaces with different physical or chemical properties is a key challenge for many applications. For example, the defined structuring of a surface with hydrophobic and hydrophilic areas can be used for the separation of emulsions, like water and oil. However, the ...
Mark Greiner and Travis Jones from the Max-Planck Institute for Chemical Energy Conversion and the Fritz-Haber Institute, along with a team of international researchers, have recently made a discovery that could transform the way chemicals are synthesized. The chemical industry relies on ...
New method derive both short-lived atmospheric hydroxyl and chlorine radical concentrations over several years
Hydroxyl radicals (OH) keep our atmosphere clean. They react away toxic gases such as carbon monoxide (CO), and slow climate warming by removing greenhouse gases like methane (CH4). In some parts of the atmosphere, chlorine radicals (Cl) can also help this purification process, for example in the ...
Scientists at the Max Planck Institute for Intelligent Systems in Stuttgart invented a new and cost-effective method for making X-ray lenses with nanometer-sized features and excellent focusing capabilities. By using an advanced 3D printing technique, a single lens can be manufactured under a ...
In chemistry, a reaction is spontaneous when it does not need the addition of an external energy input. How much energy is released in a reaction is dictated by the laws of thermodynamics. In the case of the spontaneous reactions that occur in the human body this is often not enough to power ...
Electrons ride plasma wave
There is a good chance that soon a new door will open to physicists, offering them new insights into the mysteries of the universe. The international AWAKE collaboration has made a breakthrough in its efforts to build a new type of particle accelerator. The experiment, in which electrons surf on ...
Monsoon remobilizes phased-out chemicals stored in South Asian soils
Persistent organic pollutants are toxic chemicals that cannot decompose in nature, or only do so very slowly, and are harmful to the environment. Through accumulation along food chains they also have significant negative effects on human health. Nowadays, many of them are banned. Traces of those ...
Topology is a global aspect of materials, leading to fundamental new properties for compounds with large relativistic effects. The incorporation of heavy elements give rise to non-trivial topological phases of matter, such as topological insulators, Dirac and Weyl semimetals. The semimetals are ...