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Showing posts from January, 2019

Principle of the concentration of the solar irradiation, the Solar Thermal Power Plants power plants.

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Principle of the concentration of the solar irradiation, the Solar Thermal Power Plants power plants. Solar thermal power plants: Used mainly in the United States, this system concentrates sunlight thanks to mirrors and parabolic dishes. Very high temperatures (from 400 ° C up to 1000 ° C) are then obtained and this heat will turn the water of the boiler into steam. Under pressure, it will activate the turbines that will themselves operate the alternator to produce the alternating current. This type of plant allows, by storing this fluid in a tank, to prolong the operation of the plant several hours beyond sunset. The plant consists of a field of solar collectors called heliostats that concentrate the sun's rays to a fixed focus, located at the top of a tower. In cylindrical parabolic mirrors these concentrate the radiation on tubes filled with a fluid. A similar technology, Fresnel mirrors, uses flat mirrors that pivot around a horizontal axis to follow the Sun

Top 10 strange in space we were unaware of its existence

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Although we do not know what it is that is our vast and infinite universe, what we have found so far is an amazing mixture of weirdness. In her report, published by Business Insider, Sophia Metrocustas presented a list of the most extraordinary things in space that we did not know existed. A huge cloud in space may smell like sugar cane juice The "Bow 2" cloud is the orange-red zone in the center left of the image (NASA / ESO / AIPAC) The author reported that there is a vast cloud known as the "arc b2", consisting of dust and gas located in the center of our galaxy. It contains the form of ethyl formate, the molecule that gives sugarcane juice yeast a unique aroma, and gives the berries a delicious taste as well. Scientists who find a planet may be made of solid diamonds The diamond planet is associated with a neutron star known as a millisecond (Reuters) During the year 2017, a team of international astronomers discovered a planet likely to be made

Nanomachines can destroy cancer cells in less than three minutes

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According to a study published in the journal Nature, chemists from three American and British universities have created Nanomachines capable of destroying cancer cells. These machines are so small that fifty thousand of them, glued together, would be about the width of a human hair. Each motorized Nanomachine is sensitive to a particular protein (ten different specimens have been created). When activated by light beams, they turn on themselves three million times per second, allowing them to pierce a cell. At Durham University, researchers tested their machines on prostate cancer cells and in less than three minutes one of these Nanomachines was able to destroy the cell. Researchers are experimenting with these machines with microorganisms and small fish to see if this is effective in a living organism. They are already experimenting with microorganisms and small fish and hope to be able to breed in rodents soon, before human clinical trials if animal testing is succ