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Oreshak: old village, environs, nature
about our village
Oreshak

choosing a settling place in Varna region
chronicle:
choosing a settling place
in Varna region

     

Photos: Illustrations of solar power

In a bright sunny day temperature on the thermometer with bimetallic spiral, laying on snow, is almost 50 degrees C.
In a bright sunny day temperature on the thermometer with bimetallic spiral, laying on snow, is almost 50 degrees C.

( PHOTO: NOVEMBER 2007. VILLAGE ORESHAK, REGION VARNA, BULGARIA )

* - bimetal, bimetallic - formed of two different metals or alloys; especially in sheets bonded together.
(From KThesaurus by Daniel Naber, under GNU General Public License.)

Clean snow is an effective reflector of sunlight. But such a high natural light flow can be only in a really unpolluted places, where the atmosphere is clean and transparent.

A sail is using wind power.
A sail is using wind power.
Power of the wind is a result of collaboration of solar energy, Earth's surface and atmosphere

( PHOTO: AUGUST 2006. THE BLACK SEA, VARNA BAY, BULGARIA )

A man overboard of a sailing yacht is feeling the power of slight wind.
A man overboard of a sailing yacht is feeling the power of "slight" wind.

( PHOTO: AUGUST 2006. THE BLACK SEA, NEAR VARNA, BULGARIA )

Daytime breeze, that appears in seashore regions because of the warming of the earth's surface by the sunlight. Slight breeze 4 m/s (unavailable for using in wind turbines) gives power, that is feeling good when the man is overboard of a sailing yacht.

Sail has huge surface and high durability - because durability of synthetic fabric is very high. Architectures are using the same principle for building a surface - membrane. Comparing to other constructions, a sail and a membrane have the cheapest cost of surface unit. That's why we make experiments with reflectors, that are built according to the sail principle - stretched durable fabric and metallic foil.

Solar reflector made of aluminium foil.
Solar reflector made of aluminium foil.

( PHOTO: NOVEMBER 2007. VILLAGE ORESHAK, REGION VARNA, BULGARIA )

Aluminium is an effective reflector of sunlight. In this example, it is shown not a foil mirror, but a reflector of dispersed light.

This is experimental aluminium foil reflector. To the moment of picturing this aluminium foil reflector has been at hard outdoor conditions for about 2 months (rain, dust from building, hoarfrost). But aluminium, covered with tiniest layer of transparent varnish, still reflects the sunlight quite well.
Don't mix up the luminiferous plastics! Aluminiferous plastics normally are semitransparent.

Sunlight and cold from the space are the main energy sources for the atmosphere.
Sunlight and cold from the space are the main energy sources for the atmosphere.

( PHOTO: NOVEMBER 2007. VILLAGE ORESHAK, REGION VARNA, BULGARIA )

Clouds are great sunlight reflectors. The more is the overcast, the brighter is the Earth's shining. The less solar power get consumers on the ground: vegetable plants, forests, solar devices.

Waterspout powered by sun radiation.
Waterspout powered by sun radiation.

( PHOTO: JULY 2006. BULGARIA, THE BLACK SEA )

On the image are, accidentally pictured, tracks from 2 jet planes. What influence on the environment have tracks from jet planes?

Grass as receiver of the sunlight power.
Grass as "receiver" of the sunlight power.

( PHOTO: NOVEMBER 2007. VILLAGE ORESHAK, REGION VARNA, BULGARIA )

Flora uses the sunlight power through photosynthesis to build theirs bodies.

Bio-fuel for wood-stove is a result of building by a tree, using solar power through photosynthesis, of its trunk.
Biofuel for wood-stove is a result of building by a tree, using solar power through photosynthesis, of its trunk.

( PHOTO: DECEMBER 2007. VILLAGE ORESHAK, REGION VARNA, BULGARIA )

This tree with 18 centimeters diameter trunk and 10 meters high has grown for 20 years.

Reaction to solar power.
Reaction to solar power.

( PHOTO: AUGUST 2006. THE BLACK SEA, NEAR VARNA, BULGARIA )

  >> More photo themes  

 
 
     
>> How we use "free energy" from renewable sources
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building of the underground heat accumulator

 
 
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