By Peter Würfel

Peter Würfel describes intimately all facets of sun telephone functionality, the physics in the back of each step, in addition to the entire concerns to be thought of whilst bettering sunlight cells and their potency. in line with the hugely winning German model, yet completely revised and up to date, this variation includes the newest wisdom at the mechanisms of solar power conversion. Requiring not more than ordinary physics wisdom, it permits readers to appreciate the standards using conversion potency and to use this data to their very own sun telephone improvement.

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50 +RZWRERLODQHJJELQQHQZHUNLQGG    The egg has been boiled A fresh outlook on energy My journey towards ‘a sustainable energy supply for everyone’ started at the farm I grew up on. There I experienced the impact of the natural forces on daily life. The natural forces inspired awe, and justifiably so. These forces can form a threat. At the same time nature is a tremendous source of energy. The energy from the sun is even the source of our existence. For many millions of years the sun has given life on Earth the energy to develop.

One of these developments is the ingenuous ‘Wave Rotor’. This device is designed to ‘catch’ the circular movements in the water column and convert them into a propulsive force acting on tilted vertical and horizontal rotor blades. 24 +RZWRERLODQHJJELQQHQZHUNLQGG    In the waves typically occurring in the Atlantic Ocean, one 10 meter diameter Wave Rotor could yield 500 kW of electrical power. If we move only one more technological step, the Wave Rotor could revolve underwater around the mast of an offshore wind turbine and we would have two renewable sources at one location.

Biomass Though it is perhaps somewhat less evident than wind and waves, biomass is also a form of solar energy. Plants grow thanks to sunlight. The energy in the particles of sunlight (photons) activates the chemical processes in plant cells. Then minerals, water, and carbon dioxide from the air are transformed into leaves, flowers, stalks, fruits, and roots. In short, they are transformed into biomass. Besides this kind of biomass from plants on the land, there is also marine biomass (algae and phytoplankton), animal biomass (manure, grease and slaughterhouse leftovers) and industrial biomass (waste products from paper and cardboard factories, the dairy industry, beer breweries, food processing, and so on).

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