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Get Ready for Water-Powered Cell Phones

November16

samsung water powerSamsung Electro-Mechanics has developed a micro-fuel cell and hydrogen generator that runs on water, writes the Chosun Ilbo.
Oh Yong-soo, vice president of Samsung Electro-Mechanics’ research centre, who said that when the handset is turned on, metal and water in the phone react to produce hydrogen gas.

The gas is then supplied to the fuel cell where it reacts with oxygen in the air to generate power.

Other fuel cells need methanol to produce hydrogen, while Samsung’s needs only water.

Since the micro-fuel cell can generate up to three watts of electricity, it could be used in mobile devices. The new fuel cell could power a handset for ten hours, twice as long as rechargeable batteries. Oh Yong-soo said water-powered handsets are expected to hit the market by 2010.

samsung water power

Since the micro-fuel cell can generate up to three watts of electricity, it could be used in mobile devices, the company said. The new fuel cell could power a handset for 10 hours, twice as long as rechargeable batteries.

Oh said water-powered handsets are expected to hit the market by 2010. “If the user uses the phone for four hours a day on average, they would have to change the hydrogen cartridge about every five days,” Oh said. “Later handsets will be developed that don’t need the hydrogen cartridges to be changed, and would only need to be filled with water.”

In 2010 your mobile phone may be powered by water. Samsung Electro-Mechanics announced that it has developed a micro-fuel cell and hydrogen generator that runs on H20.

“When the handset is turned on, metal and water in the phone react to produce hydrogen gas,” explained Oh Yong-soo, vice president of Samsung Electro-Mechanics’ research center. “The gas is then supplied to the fuel cell where it reacts with oxygen in the air to generate power.” Other fuel cells need methanol to produce hydrogen, while Samsung’s needs only water.

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Eat less, live long

November15

A GROWING number of middle-aged Australians are joining a “calorie restriction” movement in a drastic bid to live for longer.

They believe eating about 20 per cent less than the recommended daily intake will extend their lifespans and help them avoid getting sick.

Evidence shows animals given fewer calories, or kilojoules, have longer life expectancies than those that eat an average amount.

Calorie restriction may also reduce the risk of heart disease, diabetes and some cancers.

However, critics warn people who drastically restrict their diets may be more likely to develop eating disorders, nutritional deficiencies and fertility problems.

Arthur Everitt, Honorary Associate Professor at Concord Hospital and Sydney University, follows the principles of calorie restriction with a diet high in fruits and vegetables plus some protein.

The 83-year-old, who has been researching ageing and calorie restriction in rats for more than 50 years, warns baby-boomers may be leaving the diet a bit too late.

“Calorie restriction should really be started early in life as a young teenager or adult,” he said.

“It’s extremely difficult to do but I think almost everyone can reduce the amount of food they eat, even if it’s by five per cent.

“I do think people over-consume. When you go to a restaurant, the size of the meal that’s set down in front of you is twice what it would have been 20 years ago.”

Prof Everitt says he cuts large meals in half and takes the remainder home with him for another time.

Claudette Wadsworth, a Bondi Junction nutritionist and naturopath, says focusing on good quality food is more important than limiting quantities.

“Obviously you don’t want to over-eat but I would rather people think about quality of food they are eating rather than the amount,” she said.

“I recommend lots of fruit and vegetables, good quality lean protein and omega oils from deep water oily fish.

“The danger (of calorie restriction) is people can go to extremes, particularly when they are trying to lose weight.”

Calorie restriction is also spawning a new generation of anti-ageing diet books, such as the Beyond The 120 Year Diet.

Celebrity nutrition expert Dr John Tickell agrees Australians are routinely over-consuming and could extend their lifespans if they simply reduced the amount they ate.

He believes one of the main reasons that people live longer and have less illnesses in Okinawa, in southern Japan, is because they eat less.

“I am absolutely on the side of people who say calorie restriction does extend life expectancy,” he said.

“The Okinawans often live until they are in their 90s or over 100.”

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Things you dont see often

November1

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