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Blog – Page 16

Water is everywhere and comes in many forms: snow, sleet, hail, hoarfrost, and so on. However, despite water being so commonplace, scientists still do not fully understand the predominant physical process that occurs when water transforms from liquid to solid.

Now, in an article published in the Journal of Colloid and Interface Science, researchers from the Institute of Industrial Science, The University of Tokyo, have carried out a series of molecular-scale simulations to uncover why ice forms more easily on surfaces than in bodies of water.

While it is common knowledge that water freezes at 0°C (32°F), water does not instantly turn into ice the moment this temperature is reached. Instead, begin forming at tiny “nuclei” and spread throughout the body of water in a process called nucleation. Lower temperatures promote nucleation events and hence speed up the freezing process. Although, at the , other factors can also play a role.

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Turning crude oil into everyday fuels like gasoline, diesel, and heating oil demands a huge amount of energy. In fact, this process is responsible for about 6 percent of the world’s carbon dioxide emissions. Most of that energy is spent heating the oil to separate its components based on their boiling points.

Now, in an exciting breakthrough, engineers at MIT have created a new kind of membrane that could change the game. Instead of using heat, this innovative membrane separates crude oil by filtering its components based on their molecular size.

“This is a whole new way of envisioning a separation process. Instead of boiling mixtures to purify them, why not separate components based on shape and size? The key innovation is that the filters we developed can separate very small molecules at an atomistic length scale,” says Zachary P. Smith, an associate professor of chemical engineering at MIT and the senior author of the new study.

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Experiments at BESSY II show that during electrolysis, the structure breaks down into ultrathin nickel sheets, exposing the active catalytic centers to the electrolyte. Hydrogen can be produced through the electrolysis of water. When the electricity for this process comes from renewable sources.

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Researchers from the Niels Bohr Institute, University of Copenhagen, have created a novel pathway into the study of the elusive quantum states in superconducting vortices. The existence of these was flaunted in the 1960s, but has remained very difficult to verify directly because those states are squeezed into energy scales smaller than one can typically resolve in experiments.

The result was made possible by a combination of ingenuity and the expanding research in created in the labs at the Niels Bohr Institute. It is now published in Physical Review Letters.

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We dived deep into the difference between cryonics and biostasis, the philosophy of extropy, the future of cryonics, ethical and political dilemmas connected with biostasis, the proactionary principle, reframing the “death” idea, the future of human identity and much more!

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