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This new technology will help you brew tea three times faster

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By Newsgram Staff Writer

Scientists at Drexel University in Pennsylvania have developed a technology that can heat water faster up to three times. This can be really helpful in conserving energy in industrial power plants or large-scale electronic cooling systems. It can also be used to make tea quickly, technically speaking.

The air bubbles created while heating water temporarily insulate heating elements from the surrounding water, slowing down the transfer of heat. The scientists have found that the size of these bubbles can be reduced by coating a heating element with a virus found on tobacco plants.

The reduction in bubble size will also prevent ‘critical heat flux’ caused when bubbles merge into a blanket surrounding the element hampering the transfer heat to the water.

‘What happens then is the dry surface gets hotter and hotter, like a pan on the stove without water in it. This failure can lead to the simple destruction of electronic components, or in power plant cooling applications, the catastrophic meltdown of a nuclear reactor.’  Matthew McCarthy, an engineer at Drexel University was quoted in the PSFK magazine.

Scientists had been looking for ways to develop a surface that repels bubbles and keep the boiling surface wet. McCarthy’s team found that tobacco mosaic virus was perfect for the purpose.

They have genetically modified the virus so that it can attach itself to any surface. Once the virus is attached to the surface, it is coated with a microscopically thin layer of nickel to make the virus inert.  This forms a sort of metallic grass which can wick moisture to the surface and repel bubbles.

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Copyright 2015 NewsGram

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Habitual Tea Drinking May Lead to Higher Bone Density

Those who drink green tea or have drunk tea for over 30 years have a 20 to 30 percent lower risk in hip bone fracture

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Habitual tea drinking can lower risk of fracture. Pixabay

Habitual tea drinking can lead to higher bone density, particularly for women, and lower the risk of bone fractures, according to a prospective study of 450,000 adults by Chinese researchers.

Although little is known about the cause of the association, the research conducted by the School of Public Health with Peking University found daily consumers of green tea and those who had drunk tea for more than 30 years have a lower rate of fractures according to their hospitalization records, reports Xinhua news agency.

The paper on the research was published in the international journals Nutrients and Osteoporosis International.

Li Liming, a professor who led the research, said the study included 453,625 people randomly selected from the China Kadoorie Biobank and documented their records on hospitalized fractures.

Iced Tea. Pixabay

Based on their self-reported tea consumption, the researchers found that compared with those who do not drink tea, daily tea consumers have a 12 percent lower risk of fracture.

Those who drink green tea or have drunk tea for over 30 years have a 20 to 30 percent lower risk in hip bone fracture.

Also Read- Huawei Unveils its Flagship Mate 20 Pro in India

Li said bone density had become an important subject of public health. Previous researches also suggested a certain association between habitual tea drinking and higher bone density among menopausal women.

He said the prospective study still needs a more substantial sample analysis for more accurate results linking the association between tea drinking and bone density since tea drinking may affect other factors such as improving people’s concentration and vigilance. (IANS)