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Enerzine, le portail de toutes les énergies - pétrole - gaz - électricité - nucléaire - solaire - éolien - biocarburants - éolien - bois - vagues

Enerzine, le portail de toutes les énergies - pétrole - gaz - électricité - nucléaire - solaire - éolien - biocarburants - éolien - bois - vagues

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Chemistry Blog » Blog Archive » How Water Freezes Lower on a Negatively Charged Surface I first heard this on National Public Radio and then I searched for it. In short, David Ehre, Etay Lavert, Meir Lahav, and Igor Lubomirsky report in Science, (Water Freezes Differently on Positively and Negatively Charged Surfaces of Pyroelectric Materials) water freezes at a lower temperature (-18°C) on the negatively charged side of a lithium tantalate plate with a strontium titanate film than on the positive side (-7°C, and -12°C uncharged). Is this unique or is this a manifestation of something in our standard introductory organic chemistry textbooks? I thought it was the latter. Relativistic Heavy Ion Collider RHIC Physics RHIC is the first machine in the world capable of colliding ions as heavy as gold. The Spin Puzzle RHIC is the world's only machine capable of colliding beams of polarized protons to investigate the 'missing' spin of the proton. Electron-Ion Collider A breakthrough accelerator could collide electrons with heavy ions or protons at nearly the speed of light to create “snapshots” of the force binding all visible matter. Accelerator Science Before high-speed packets of heavy ions can be brought into collisions with one another, they first travel through a chain of smaller particle accelerators. An Educational Pipeline Large-scale physics facilities like RHIC play a significant role in training the next generation of physicists.

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