Molecules from space – Primary gas created shortly after Big Bang
Molecules from space – Primary gas created shortly after Big Bang – Has been confirmed the
hypothesis about the origin of molecules from space. The researchers were able to discover
the so-called. Primary gas, which was created shortly after the Big Bang, it consists of hydrogen
and its heavier isotope deuterium. This finding confirms that in the Big Bang were created only the
lightest chemical elements, hydrogen and helium. Heavier elements appeared only after 100 Mln years.
Brussels tunnel – Experiment with photocatalysis
Brussels tunnel – Experiment with photocatalysis – In 09.2011. European experts began their
experiment in the Brussels tunnel, through which passes every day 25 thousand. cars.
100 meter length of building was covered with cement with titanium dioxide TiO2,
which is the source of a chemical process called photocatalysis, acts as a catalyst driven by
solar radiation (UV).
DNA chain – Ladders with millions rungs
DNA chain – ladders with millions rungs – DNA strands looks like spiral ladders
with the millions rungs, each of which carries the instructions written by chemical code.
If we could unravel and stretch the DNA of a single human cell, measure the approx.
2 meters, its thickness, however, would amount to approx. 0.000002 mm. Chain DNA from
the body of one man is 16 times longer than the path from Earth to the Moon.
Antimalarial effective drug – Isolated Quinine
Antimalarial effective drug – Isolated Quinine. One of the first effective drugs for malaria was the bark of the Peruvian cinchona tree (Cinchona) containing alkaloid – quinine. Its action convinced the Jesuits and approx. 1640. Brought it from South America. to Europe. It was not until 1820. Quinine isolated the French chemists – Pierre Joseph Pelletier and Joseph Bienaime Caventou.
John Dalton – English physicist, chemist, meteorologist
John Dalton – English physicist, chemist, meteorologist – In 27.07.1844 died English physicist,
chemist and meteorologist J. Dalton (born in 1766). Founder of modern atomic theory of matter.
He described the vision defect, which was later called daltonism. Atomic mass unit,
also acquired his name (Da).
Hans von Euler-Chelpin – Swedish chemist and biochemist
Hans von Euler-Chelpin – Swedish chemist and biochemist – In 15.02.1873 was born Swedish
chemist and biochemist Hans von Euler-Chelpin. He dealt with vitamins and enzymes.
In 1929 together with Arthur Harden was awarded the Nobel Prize in chemistry.
For explaining the participation of enzymes in the fermentation of sugars.
Melvin Ellis Calvin – American physical chemist
Melvin Ellis Calvin – American physical chemist – specialist of photosynthesis, catalysis, molecular structure – In 04.08.1911
was born American physical chemist Melvin E. Calvin. He was a specialist in the field of organic chemistry, catalysis, molecular structures. Calvin conducted research on chemical reactions of carbon
associated with the process of photosynthesis. He received the Nobel Prize in Chemistry for
the discovery of the so-called. photosynthetic pathway.
Wilhelm Friedrich Ostwald – Modern physical chemist
Wilhelm Friedrich Ostwald – Modern physical chemist – In 04.04.1932 died German chemist Wilhelm F. Ostwald. He conducted research in the field of statics and chemical kinetics, catalysis issues, the theory of electrolytic dissociation and scheme of colors. He was one of the founders of modern physical chemistry. Nobel Prize laureate.
Maria Curie-Sklodowska – Radiochemistry,
Maria Curie-Sklodowska – Radiochemistry, radioactivity precursor – In 04.07.1934
died M. Curie–Sklodowska, Polish physicist and chemist, precursor of radiochemistry,
winner of the Nobel Prize. Her major achievements include the development of the theory of radioactivity,
radioisotope separation techniques. The discovery of two new elements – radium and polonium.
Louis Lumiere – Pioneer of world cinematography
Louis Lumiere – pioneer of world cinematography – In 10.05.1864 was born French
chemist L. Lumiere, one of the brothers – pioneers of world cinematography who, in 1895.
Constructed the cinematograph and 28 December at the “Salon of the Indian”,
(Capuchin boulevard in Paris) – organized the first public screening of the film.