What's the Buzz...

What's the Buzz...

New airless tyres that never go flat

The misery of stopping at the side of the road to change a flat tyre could soon be a thing of the past. Manufacturer Bridgestone has developed a prototype of airless tyre that never goes flat. The airless tyre uses a special plastic resin that is weaved into a mesh of spokes that help to support the tread of the tyre, and also makes sure it doesn’t collapse under the weight of the vehicle.

The pattern of the spokes also plays a key part in assuring that it does not collapse, performing the function air pressure does in regular tyres.

Furthermore, the tyre’s resin is made of a plastic that can be repeatedly recycled and is therefore better for the environment. The tread is also made from recycled material.

Bridgestone, who are the world’s largest tyre and rubber company, say the ‘non-pneumatic’ tyre is at an early stage of development but it should eventually be available in retail vehicles. The company unveiled its concept at the 42nd Tokyo motor show, which took place last month.

“There is no need to periodically refill the tyres with air, meaning they require less maintenance,” the Daily Mail quoted a Bridgestone spokesman as saying. “At the same the worry of punctures is eliminated. Non-pneumatic tyres have less impact on the environment than today’s conventional tyres.

Satellites detect dome of fresh water in Arctic Ocean

With the help of ESA satellites, scientists have discovered that a large dome of fresh water has been building up in the Arctic Ocean over the last 15 years.

A change in wind direction could cause the water to spill into the north Atlantic, cooling Europe. The results are remarkable: since 2002, the sea surface in the studied area has risen by about 15 cm, and the volume of fresh water has increased by some 8000 cubic km – around 10percent of all the fresh water in the Arctic Ocean.

Researchers from the Centre for Polar Observation and Modelling (CPOM) at University College London and the UK’s National Oceanography Centre used data from ESA’s ERS-2 and Envisat satellites to measure sea-surface height over the western Arctic from 1995 to 2010.

The scientists concluded that the dome could be a result of strong Arctic winds accelerating a large ocean circulation known as the Beaufort Gyre, causing the sea surface to bulge.

Deadliest skin cancer doesn’t look like normal moles

Scientists claim to have found a clue to why nodular melanoma, a deadliest form of skin cancer, often proves fatal, as they spread vertically and doesn’t grow in diameter like other cancers that can easily be detected. Nodular melanoma accounts for about 14 per cent of all diagnosed skin cancers, but makes up 37 per cent of ultimately fatal cases as they grow in depth and become more deadly, the researchers found.

“You can have melanomas that don’t follow the rules. These nodular melanomas tend to be more dangerous than the other melanomas,” said study co-author Martin Weinstock, a professor of dermatology at Brown University.

When most melanomas develop, they stay in the skin’s top layer, growing no deeper than one-tenth of a millimeter for months or years and are easier to spot. But in nodular melanoma, the cancer cells quickly start growing vertically: A bump forms at the skin’s surface, and they send roots down into the fat, blood and other tissue of the body.

This matters, because a cancer’s depth can determine the chances of survival, the researchers said.

Whole grains and protein-rich diet help women lose weight

Eating a well-balanced diet that provides all the essential nutrients required by the body can help women keep in shape, researchers say.

Women have some special nutritional concerns depending on how old they are and what stage of life they are in, Fox News reported.

Thus, the Academy of Nutrition and Dietetics (formerly the American Dietetic Association or ADA) has recommended a healthy daily diet for weight maintenance which includes whole grains (three 1-ounce servings), dairy (three fat-free or low-fat servings), protein (five to six ounces of lean meats or other proteins), fruit (two cups) and vegetables (two-and-a-half cups)

Besides, women should also ensure that their diet includes vital nutrients like iron, calcium, vitamin D and folic acid.

Researchers have also asserted that irrespective of age, your health will benefit from a diet that is rich in plant-based foods and low on alcohol and caffeine.

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