web analytics

Usa World Cup Kits

Usa World Cup Kits

A Curious Tale About Solar Panels by Alistair Siddons

THE SEPTEMBER 2006 ISSUE OF SCIENTIFIC AMERICAN was dedicated to exploring the future of energy beyond the carbon era. The editors share a sobering outlook: 'Decades may pass before hydrogen-powered trucks and cars relegate gasoline-and diesel-fueled vehicles to antique auto shows.' Until that happens, we'll 'muddle-through' somehow. (Scientific American: 3)

But why does it take so long for some energy technologies to get from the lab and industrial applications to the service of consumers? Take solar panels, for example.

A high-street electronics chain in London now sells educational solar-power kits for around the 20 mark. Serious, roof-dwelling solar panels that will power equipment in your home sell in DIY superstores at around 2,500. That's a price-tag for the wealthy or very committed, but at least consumers can push their trolleys past the technology

SOLAR PANELS HAVE ONLY RECENTLY APPEARED on the shelves of retail outlets, so you'd forgive them for posing as new technology. But they're not. While England was priming itself for what was to become its most famous World Cup, a contributor to the July 1966 edition of Wireless World faced a copy deadline for the magazine. His name was D. Bollen, and he provided a circuit for a solar-powered battery charger.

As he put it: 'The ability of solar cells to convert sunlight directly into useful electrical energy has been well demonstrated in satellite applications. An advantage of the solar battery is that is allows true, unattended operation in locations remote from a power supply and...promises an outstanding degree of reliability.' (Wireless World: 343)

Over four meticulously-illustrated pages, Bollen goes on to provide a blueprint for a circuit that will trickle-charge a battery from a solar cell. Bollen shows that you can run something that uses one milliamp of current for '2.74 hours' in a 24 hour period. He leaves us guessing what application he had in mind for this tiny current, but the rig could also have powered the bulb of a toy torch for a few seconds a day.

Still, the circuit is there and the date is mid-1966. Don't be distracted by Bollen's talk of 'satellite applications'. His circuit is a million miles from rocket-science in fact it's the simplest of the bunch in this edition of a magazine that was pitched at everyone between novice constructor and electronics professional.

Someone with barely any experience could have thrown a demonstration version of this circuit together in fifteen minutes flat. And all the parts were available from specialist suppliers in London and south-east England.

The listed supplier for 'assorted selenium and silicon cells' is International Rectifier. I contacted the company to find out how much a similar solar-cell cost at the time Bollen wrote his feature.

A single cell measuring about a centimetre by two centimetres cost four dollars, right up to 1966. In his feature, Bollen describes various combinations between one cell and four, so the most expensive part of his circuit cost between four and 16 dollars, or about $25-100 dollars in today's money.
World's first solar-powered car: 1912

But what came back from International Rectifier (IR) proved far more interesting than price information. It turns out that the company had demonstrated the world's first solar-powered car - a 1912 model of the Baker Electric - as early as 1958. They achieved the stunt by making a high-output solar panel - less than two metres long and just over a metre wide - from a whole bank of little solar cells.

Commercial, industrial and military customers went on to buy solar panels from International Rectifier.

SO WHY HAS IT TAKEN ALMOST FIFTY YEARS for solar panels to reach our shops?

Southface, a non-profit, sustainable-living organisation based in the USA, point out that solar-cell technology has had been uselessly competing against the relative fall in price that occurred in the fossil-fuel market in the nineties.

But Southface believe that major orders of consumer solar cell units in countries such as Japan may finally signal the start of an era when solar cell production will benefit from economies of scale.

I hope so. In the meantime, it's anyone's guess how long will it take for the consumer-led technology revolution to swat our energy problems.
Alistair Siddons, 2006

Alistair Siddons is editor of The Trip Flare and author of The Chemetco Dossier. He lives in London.http://www.thetripflare.org

Article Source: http://www.earticlesonline.com/Article/A-Curious-Tale-About-Solar-Panels/120992

Usa World Cup Kits

The World of Weeds by Lena Butler

There are tons of kinds of marijuana available everywhere. Basically, marijuana is divided into two categories: Sativa and Indica. Sativa is a kind of marijuana which is taller and bigger when compared to Indica. The buds of Sativa are also bigger but the density is lesser. What is good about Sativa is that, it is not smelly and it takes a longer time to flower which is from nine to ten weeks. On the other hand, Indica is smaller and shorter. It is denser and smellier but the period for it to flower is shorter than Sativa, usually from six to nine weeks.

The most popular kinds of marijuana are the following:

White widow white widow is considered one of the most favorite kinds of marijuana in the world especially in Holland. In the mid 1990s, white widow could be seen in almost all coffee shop of the said country.

Big bud big bud is a type of marijuana that actually became a winner in the cannabis cup. It is considered the oldest strain. The branches of Big Bud are very heavy with flowers and most of the time will reach the ground. It has a skunk taste and you will be high for a longer period of time.

Bubblegum this breed of marijuana also got a lot of awards. As its name say, it really taste like a bubblegum. It is normally in medium size and it doesn't have a lot of branches. This kind of marijuana originated in Indiana, USA.

Hollands Hope this variety of plant is perfect for outdoors, has a sweet flavor and the taste is not that strong.

Ice this class of marijuana is just a newbie in the world of weeds. But despite of this, it has already won an award. It is also extremely crystalline.

Northern lights this type of marijuana is very advisable for indoor growing. It is also considered as one of the most popular strains.

Purple Flower this is called Purple Flower because it is really purple. This plant will not grow in tropical countries, only in cold places.

PPP PPP stands for Pure Power Plant. Most of PPP are Sativa and this originated in South Africa in 1990s. This plant has a pleasant after taste.

There are some debates about legalizing marijuana or not. As of now, there are already some countries which tolerate the use of marijuana such as Holland and Amsterdam. You will also see great tolerance of using marijuana in Nepal, India, Australia, Afghanistan and a lot more. Used of this plant is also very easy even in San Francisco California, USA.

Here are the Top ten countries which have the most number of people who are using marijuana according to Lifestyle statistics.

1.New Zealand

2.Australia

3.United States

4.United Kingdom

5.Switzerland

6.Ireland

7.Spain

8.Canada

9.Netherlands

10.Belgium

Lena Butler, the author of TestCountry Drug FAQ, a longer version of this article is located at The World of Weeds, and resources from other home health and wellness testing articles are used such as TestCountry Drug Identification Kits.

Article Source: http://www.earticlesonline.com/Article/The-World-of-Weeds/216987

Usa World Cup Kits

Cheap Football Shirt used the fabric as a renewable material by vansci123

In 1930, the first World Cup, the oldest football event has already spent the 1980s. With the continuous development of football, almost all the elements on the stage are constantly replacement, such as rules, game equipment. When it comes to hardware, you have to say that the greatest changes, each World Cup each player has one of the essential material - New Jersey. 1980s, fabric Jersey, styles, effects are constantly evolving, the designing innovative battle standards constitute the cup of the world with the beauty of the landscape. On the color of the shirt, there is a saying that through color red team Cheap Football Shirt became a trend. Because the red represents the unbridled, symbolizes the deterrence and will give audience resulted in a strong visual impact. Psychologist at the University of the United Kingdom has Olympic competitions of four - boxing, Kick Boxing, fight and Greco-Roman as the object of study. Participation in these projects, players at uniform random dressed in red or blue race unveiled the game. But statistics show that in the 21st round, wearing a red player won one of the 16 fields, victory to account for 55%. But in the World Cup Stadium, in red, orange, mainly in the hot but not what advantages accounted for and the results are not good. In the previous 18 World Cup finals held, there are 7 different countries up to the end of the Championship trophies, these champions wear Scotland Football kits are blue, white, yellow, red and four main colors. If the shirt blue and white of the Argentina chenglan, white, color, you can do the following summary. Wear a blue shirt of team won eight times, wearing a white shirt Team Championship six times, wearing the yellow Jersey and won a 5 time (full to the Brazil before the World Cup is a white shirt, 1950 in the final after the defeat in Uruguay changed the yellow Jersey), wearing a red shirt only win 1 time port Orange Jersey of the Netherlands twice killed in Cup final world, all three.
When the former Jersey, Basic does not have too many features, is regular clothing, similar to our upright collar t-shirt. However, with the development of the era, the Jersey of the composition of elements is also constantly upgrading. First is design, t-shirt as Vintage Jersey gradually tree necklace around neck or V; followed by the color at the beginning to walk with color Jersey today, in the choice of colors, most States used its own colors of the national flag, as in the yellow, blue-white of the Germany Brazil Italy Mexico Green and thus, fully embodies the characteristics of a battlefield national standards. Then has Jersey fabrics also enormous changes, nylon, polyester, cotton in the current World Cup - a have more team Cheap Football Shirt takes the fabric is a renewable material, multi esters very green. Jersey, the biggest change is the elements of design, each Jersey competing nations Cup, will have a unique inside as the Brazil design last signs over the small football national team Jersey printed with 5 stars, a symbol of the Brazil, who won the World Cup Championship 5 blocks, the font of the text of the Brazil carefully designed by the artist, the number of design comes also from currency Brazil to give full expression Brazilian style. Of course, these design ideas can not be separated from the major Wholesale Football Shirt Supplier have just released the current colors of strong cases 32 World Cup more and more, a total of seven major sports brands become 32 team sponsors. These giant Adidas and Nike two carved on the part of 2/3, but it is important to mention that hanging China Korea, North Agency to become the first landing of national sports brand in the World Cup.

I want to buy Cheap Football Shirt

Article Source: http://www.earticlesonline.com/Article/Cheap-Football-Shirt-used-the-fabric-as-a-renewable-material-/955878

World Cup Survival Kit Part 1 | FIFA Women's World Cup Germany 2011

Comments on this entry are closed.

Previous post:

Next post: