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Water Molecules Need Additional Energy Before They Turn into Ice

Water Molecules Need Additional Energy Before They Turn into Ice Written by AZoMMay 28 2021 When water comes into contact with a cold surface, it freezes and changes into ice a fact that is already well known. The study results of Anton Tamtögl et al. lead to a completely new understanding of ice formation: Water molecules require additional energy before they freeze into ice. Image Credit: © Lunghammer - Graz University of Technology. However, the actual process and its minute details have remained vague, until now. The first step in ice formation is called ‘nucleation’ and happens in an incredibly short length of time, a fraction of a billionth of a second, when highly mobile individual water molecules ‘find each other’ and coalesce.

United kingdomAnton tamtUniversity of cambridgeNature communicationsCavendish laboratory in cambridgeUniversity of surreyInstitute of experimental physicsGraz university of technologyExperimental physicsGraz universityTurn previous understandingIce formation upsideHelium spin echoCavendish laboratoryMaterials scienceஒன்றுபட்டது கிஂக்டம்

Researchers build structured, multi-part nanocrystals with super light-emitting properties

E-Mail IMAGE: Researchers combined perovskite nanocubes - tiny crystals with useful electrical or optical properties - with spherical nanoparticles to form a regular, repeating structure called a superlattice. Some of these structures. view more Credit: Image courtesy of Maksym Kovalenko and Ihor Cherniukh/ETH Zürich, the Swiss Federal Institute of Technology AMES, Iowa - Researchers have developed new types of materials that combines two or three types of nanoparticles into structures that display fundamental new properties such as superfluorescence. The whole goal of this research is to make new materials with new properties and/or exotic new structures, said Alex Travesset, an Iowa State University professor of physics and astronomy and an associate scientist for the U.S. Department of Energy s Ames Laboratory. Those materials are made of very tiny materials, nanoparticles, and lead to properties not shared by more traditional materials made of atoms and molec

Iowa state universityUnited statesMaryna bodnarchukIhor cherniukhMax burianAlex travessetHeinz amenitschRolf erniRainer mahrtDenys naumenkoAlejandro travessetMaksym kovalenkoSwiss federal institute of technologyUs department of energy ames laboratoryAmes laboratoryNational science foundation

International Research Team Discovers that it Takes some Heat to form Ice on Graphene

International Research Team Discovers that it Takes some Heat to form Ice on Graphene Written by AZoNanoMay 27 2021 A new study from the University of Surrey, in collaboration with the University of Cambridge and Graz University of Technology (Austria), reveals that energy is needed for water to proceed through the first step of ice formation on graphene. Image Credit: University of Surrey In a paper published in Nature Communications, the research team details the complex physical processes at work to understand the chemistry of ice formation. The molecular-level perspective of this process may help in predicting the formation and melting of ice, from individual crystals to glaciers and ice sheets. The latter being crucial to quantify environmental transformation in connection with climate change and global warming

United kingdomAndrew jardineAnton tamtMarco sacchiUniversity of cambridgeNature communicationsUniversity of surreyGraz university of technology austriaRoyal society university researchGraz university of technologyCambridge atom scattering centreGraz universityHelium spin echoRoyal society university research fellowExperimental physicsBill allison

New research may explain why some people derive more benefits from exercise than others

E-Mail BOSTON - Although everyone can benefit from exercise, the mechanistic links between physical fitness and overall health are not fully understood, nor are the reasons why the same exercise can have different effects in different people. Now a study published in Nature Metabolism led by investigators at Beth Israel Deaconess Medical Center (BIDMC) provides insights related to these unanswered questions. The results could be helpful for determining the specific types of exercise most likely to benefit a particular individual and for identifying new therapeutic targets for diseases related to metabolism. While groups as a whole benefit from exercise, the variability in responses between any two individuals undergoing the very same exercise regimen is actually quite striking. For example, some may experience improved endurance while others will see improved blood sugar levels, said senior corresponding author Robert E. Gerszten, MD, Chief of the Division of Cardiovascular M

United statesArnold schoolChangyu shenSujoy ghoshDanielh katzRoberte gersztenRobert rossBennet petersonStevena carrShuliang dengJeremy robbinsDaniela schrannerMarka sarzynskiPierrem jean beltranLoril jenningsTheresa rienmuller

An apple a day is 100 million bacteria for your gut But it is not all bad news

An apple a day is 100 million bacteria for your gut But it is not all bad news
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Gabriele bergBirgit wassermanGraz university of technologyProfessor gabriele bergGraz universityகேப்ரியல் பெர்க்க்ர்யாஸ் பல்கலைக்கழகம் ஆஃப் தொழில்நுட்பம்க்ர்யாஸ் பல்கலைக்கழகம்