NOVEDADES - Hidrógeno marino - ESPAÑA

 

• El Salón de Cannes presenta un barco de 22 pies que genera su propio hidrógeno a bordo
• El MIG 675 alcanza 70 nudos de velocidad punta y se vende por 250.000 euros

¿Puede un barco navegar solo con hidrógeno? Los constructores del proyecto MIG 675 aseguran que este reto tecnológico ya es posible para la mayoría de los mortales. Esta embarcación de 22 pies (6,7 metros) alcanza los 70 nudos (113 km/h) con cero emisiones contaminantes.
Según el fabricante, el MIG 675 genera su propio hidrógeno con la circulación del agua y no lleva depósito alguno a bordo. El equipo interno activa un motor de 500 CV que permite una velocidad de crucero de 45 nudos. Pocos detalles más se conocen del sistema de propulsión.
El MIG 675 está construido en aluminio y tiene un peso de 1.300 kg. A bordo dispone de ducha, aseo, interior de cuero y suelo de teca.
La energía generada en el barco también sirve para alimentar todos los equipos eléctricos del barco como el GPS, la sonda de fondos marinos, la cámara de visión trasera, el ancla o el equipo de audio Alpine.
El precio del MIG 675 parte desde los 250.000 euros.

Ficha técnica

Eslora: 6,75 m
Manga: 2,5 m
Peso: 1300 Kg
Motor:350 MAG sobrealimentado, 500CV hidrógeno generador autónomas.
Velocidad máxima: 70 nudos
Velocidad de crucero: 45 nudos
Capacidad: 3 personas

LINK TO THE VIDEO:  http://nauta360.expansion.com/2012/09/07/muy_exclusivo/1347019286.html

ENVIRONMENT / WATER - WALES / WORLD - INTERESTING!

9 July 2012 Last updated at 07:49 GMT

Cut water use by 30% says Institution of Civil Engineers

The Institute of Civil Engineers recommends universal metering and the removal of regulatory barriers that discourage water sharing between neighbouring companies

Wales has been warned it should not be complacent over its water supplies, with a call for a cut of almost a third in the amount everyone uses.

Despite recent heavy rain and floods, the Institution of Civil Engineers Wales Cymru (ICE) says the nation consumes and wastes too much water.

It wants universal metering and removal of regulations discouraging water sharing between neighbouring companies.

Welsh Water says it is investing heavily in preserving supplies.

 “Start Quote

We must look to the future, rainfall will be more varied, both in terms of time and location so we cannot be complacent”

End Quote Keith Jones Director, Institute of Civil Engineers

ICE said the public, the Welsh government, regulators and water companies should all contribute to putting Wales in a strong position to face the challenges of population growth, climate change and economic uncertainty.

Keith Jones, the ICE Wales director, said: "It is vital that the whole of society is involved in the process of balancing supply and demand.

"Wales is commonly thought of as a rainy area, however, we must look to the future. Rainfall will be more varied, both in terms of time and location, so we cannot be complacent."

The report recommends changing pricing structures to reflect the "true value" of water.

Currently, most households pay £1 per day for an unlimited supply, which requires a costly treatment process to make it safe to drink.

WATER EFFICIENCY FACTS

·         UK daily water consumption per person is about 150 litres

·         More than half (63%) daily water consumption at home originates from the bathroom and the toilet

·         Flushing the toilet uses approximately a third of daily water consumption

·         Sprinklers can use as much as 1,000 litres of water per hour - more than a family of four can use in a whole day.

·         Source: Institution of Civil Engineers

ICE said it would be "unsustainable" to use expensive, safe to drink water for everything, including watering the garden in the long term.

It calls for a 30% reduction per person.

As well as universal metering, ICE said discretionary tariffs should be introduced to protect the poor.

Welsh Water said it encouraged wise use of water while it was "investing heavily in protecting resources, replacing old pipes and mains, and greatly reducing leakage".

Peter Perry, the supplier's operations director, said water use in Britain compared favourably to many other western countries and the USA.

"We find increasingly that customers are very, very responsive to use water more efficiently," he said.

"We have to get our own house in order with our leakage levels but, supporting customers to use water more wisely, I think there's an emerging social conscience with this.

"We get a great response from customers when we issue information on how use water less."

Earlier this year, seven English water companies announced hosepipe bans and there were calls to move water from Wales to England.

ICE recommended the removal of regulatory barriers that discourage water sharing between neighbouring companies.

Mr Jones said: "ICE does not support a national water grid or long distance bulk transfer. These options would be too costly and too carbon intensive."

SALUD - INDIA

8 Glasses of water a day keeps fat away

The writer has posted comments on this articleTanvi TrivediTanvi Trivedi | May 21, 2012, 12.00AM IST

 

8 Glasses of water a day keeps fat away (Thinkstock photos/Getty Images)

Incredible as it may seem, water is quite possibly the single most important catalyst in losing weight and keeping it off.

Water supresses the appetite naturally and helps the body metabolize stored fat. Studies have shown that a decrease in water intake will cause fat deposits to increase, while an increase in water intake can actually reduce fat deposits.

Here's why: The kidneys can't function properly without enough water. When they don't work to capacity, some of their load is dumped onto the liver. One of the liver's primary functions is to metabolize stored fat into usable energy for the body. But if the liver has to do some of the kidney's work it can't operate at full throttle. As a result, it metabolizes less fat more fat remains stored in the body and weight loss stops.

Drinking enough water is the best treatment for fluid retention.

Diuretics offer a temporary solution at best. They force out stored water along with some essential nutrients.

The best way to overcome the problem of water retention is to give your body what it needs -- plenty of water. The more salt you eat the more water your system retains to dilute it. But getting rid of unneeded salt is easy -- just drink more water.

The overweight person needs more water than a thin one.

Water can help relieve constipation. When the body gets too little water, it siphons what it needs from internal sources.

How much water is enough? On the average, a person should drink eight 8-ounce glasses every day. That's about 2 quarts. The amount you drink also should be increased if you exercise briskly or if the weather is hot and dry.