Did you know ...

...In Reykjavik and because of its geographical position, the days only have four hours of sun in winter and in summer, the nights do not exist?
...the average temperature Reykjavik in January is -0.4 ° C and in July is about 11 ° C?
...in the city of Reykjavik where around 60% of the total population of Iceland?
...Reykjavik means steaming bay? This name was thanks to a heat source that freed many vapors and always seemed to be to smoke?
...Portugal is one of the largest exporters of cork in the world. Withdrawal of oaks, this serves to make stoppers, decorative objects, shoes and clothing?
... fertilizers and pesticides used in agriculture seep into the soil and pollute groundwater?
... oxygen is used in medicine, in patients with breathing difficulties?
... carbon dioxide is used for the manufacture of dry ice extinguishers?
... Nitrogen is used in industry for the manufacture of fertilizers?
... hydrogen is the fuel of rockets?
...mills were used for grinding grain?
...Lichens are indicators the air quality?
...There are public transport which does not emit air pollutants?
...are to develop environmentally friendly chemicals?

...Homo erect was the first species, 800,000 years ago, to be able to use fire in their everyday lives? This step was crucial in the evolution of hominids, since the possibility of feeding from cooked foods led to changes in your jaw by loss of teeth, increasing the space of the skull, essential to brain development and hence intelligence ?
... all forms of public lighting, until 100 years ago, relied on fossil fuels? The era of modern lighting started in the late nineteenth century with the invention of the incandescent light bulb by Swan and Edson.
... the diameter of the sun is 109 times larger than the diameter of the Earth? To better you perceive this proportion can compare a berlin (Planet Earth) to a beach ball with more than a meter in diameter (Sun)!
... one of the largest solar parks in the world is located in Portugal? This park is located in Amareleja (Alentejo) and has the capacity to supply about 30 thousand homes, avoiding the emission of 86,000 tonnes of carbon dioxide.
... The first practical solar boat was constructed in England in 1975?
Earth ... the sun gets 300000000000000000000000kj solar energy per year?
... Portugal is the European country with the most hours of sunshine.
  There are ... linked to solar cars called the World Solar Challenge initiative? This initiative is a contest held in Australia, in which various teams compete in a race of solar cars. What counts is to achieve better results through better efficiency strategy.
...Solar car the first was created by Danish Hans Tholstrup that crossed the 4052 miles between Sydney and Perth in 20 days?
... The term "photovoltaic" comes from the Greek? Phos, light; and voltaic "which means associated with electricity (derived from the name of the Italian physicist Alessandro Volta, which the unit of electric potential also named, the volt)?
...Build a Solar Oven homemade is quite simple? You only need a reflective hood, velcro sticks and a transparent bag. First you put the Velcro on the bottom of the reflecting hood so that you may close shaped dish with the aid of sticks. After you put the food you want to cook inside the transparent bag and you put the bag on the reflective cover.
...A house can be completely supplied by wind energy? In areas where the wind blows virtually throughout the year this situation power would come true if they were installed in the windows or balconies various micro wind turbines in the form of a wind tunnel, or a larger turbine on the roof.
.... Most dwelling houses can easily reduce the consumption of electricity for lighting, from 15 to 20% without any reduction in quality of lighting?
... The building sector is responsible for consuming approximately 40% of final energy in Europe?


Last Updated: 14/07/2014

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Planet Earth