Hydrogen peroxide with a chemical formula H2O2 was found by Louis Jacques Thenard in the year 1818. This compound is an inorganic chemical that has powerful oxidizing properties. Raw material of hydrogen peroxide is hydrogen gas (H2) and oxygen gas (O2). The technology is widely used in the auto industry is the hydrogen peroxide oxidation of anthraquinone.

Apparently, sparkling color of the wings of several types of butterflies are not produced by pigments, but by special geometric formation of the cell. Similarly, according to recent research.

The researchers used X-ray distribution techniques for photographing wing images in 3D from two groups of butterflies and papilionid lycaenid-family. They found that the wing has a small structure called giroid, which can mendifraksi sunlight like crystal.

Increase the speed of diagnosis and treatment of stroke patients is part of the latest recommendations issued by the American Heart Association / American Stroke Association.

This recommendation was made to improve the quality of life of stroke patients, interruption of blood supply to the brain that can cause death of brain tissue. This recommendation applies to both types of stroke, ie, ischemic stroke and hemorrhagic stroke (there is a leak of the brain arteries).

The sun in the course of its evolution as a star show dynamic properties, both in the outer layer (photosphere, chromosphere, corona) and the inner lining. One of the wonders of behavioral evolution is the phenomenon of solar activity cycle 11 years.

The cycle is a repetition of events that commonly occur in nature. Afternoon changed the night, due to the earth's rotation on its axis. Successive seasons due to tilt the earth's rotation axis to the plane of its orbit around the sun (equator of the earth makes an angle of 23.5 degrees to the plane of the ecliptic). And the sun it also has a cycle of activity.

Saccharomyces cerevisiae has long been used in industrial alcohol and alcoholic beverages because it has the ability to ferment glucose into ethanol. The interesting thing is the process of ethanol on yeast fermentation takes place in aerobic conditions.