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IMAGE: Comparison of flows in the reverse direction (right to left) at three different speeds. The water current is visualized with green and blue dyes, showing that the flows are increasingly. view more
Credit: NYU s Applied Mathematics Laboratory
A valve invented by engineer Nikola Tesla a century ago is not only more functional than previously realized, but also has other potential applications today, a team of researchers has found after conducting a series of experiments on replications of the early 20th-century design.
Its findings, reported in the journal
Nature Communications, suggest that Tesla s device, which he called a valvular conduit, could harness the vibrations in engines and other machinery to pump fuel, coolants, lubricants, and other gases and liquids.
Researchers have developed an innovative way to convert plastics to ingredients for jet fuel and other valuable products, making it easier and more cost effective to reuse plastics. The researchers in their reaction were able to convert 90% of plastic to jet fuel and other valuable hydrocarbon products within an hour at moderate temperatures and to easily fine-tune the process to create the products that they want.
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IMAGE: Scientists find optimal hydrogen-natural gas blend to trap hydrogen in cage-like molecules more effectively view more
Credit: GIST
2) is heralded as the clean fuel of tomorrow. Because H
2 can be produced from water (H
2O) without generating carbon emissions, developing H
2-compatible technologies has become a top priority. However, the road ahead is bumpy, and many technical limitations must be ironed out. Hydrogen is the smallest molecule in nature, and finding feasible ways to store it is a critical issue to realize a hydrogen economy, states Associate Professor Youngjune Park from the Gwangju Institute of Science and Technology (GIST) in Korea. Unlike hydrocarbons, pure H
University researchers have carried out the largest systematic review and meta-analysis to date of how people s perceptions of their screen time compare with what they do in practice, finding estimates of usage were only accurate in about five per cent of studies.
Medical devices employing AI stand to benefit everyone in society, but if left unchecked, the technologies could unintentionally perpetuate sex, gender and race biases.