Łańcuch DNA – Drabiny z milionami szczebli

Łańcuch DNA – Drabiny z milionami szczebli

Łańcuch DNA – Drabiny z milionami szczebli

Łańcuch DNA – 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.

Pierwsza ludzka transplantacja serca – Zarządzanie Christiaan Barnard

Pierwsza ludzka transplantacja serca - Christiaan Barnard, 1968Pierwsza ludzka transplantacja serca – diagram

Pierwsza ludzka transplantacja serca – Zarządzanie Christiaan Barnard

Pierwsza ludzka transplantacja serca – Zarządzanie Christiaan Barnard – 03.12.1967 medical team under the direction of Professor Christiaan Barnard, South African heart surgeon. Performed at the hospital Groote Schuur Hospital in Cape Town, the first human heart transplant operation.

Bakterie ludzkiego organizmu – Mikroorganizmy układu trawiennego

Bakterie ludzkiego organizmu – Jelito grube

Bakterie ludzkiego organizmu – Mikroorganizmy układu trawiennego

Bakterie ludzkiego organizmu – The total weight of bacteria living in the human digestive system is approx. 1.5 kg. In the large intestine, we have 100 trillion microorganisms 10 times more than the number of all cells in the body. They are divided into roughly 400 species.

Studies have shown that it is the changes in the number and species of bacteria in the gut have a negative impact on the psyche of the patients. According to specialists bacterial flora may be responsible not only prone to depression, but depression symptoms in themselves.

At one cm square elbow stays on average 10 thousand. bacteria 113 different species, but more than 90% are 10 of them. The least bacteria on human skin found between the toes, the largest habitat of the navel.

Pochodzenie ludzkiego cholesterolu

Pochodzenie ludzkiego cholesterolu

Pochodzenie ludzkiego cholesterolu

Pochodzenie ludzkiego cholesterolu – Cholesterol is a steroid, or a compound belonging to the lipids. It is delivered into the body with food (exogenous source) approx. 400-500 mg per day. However, the bulk of cholesterol is derived from endogenous sources. Its production deal mainly the liver (70%), colon (15%) and the skin (5%) – approx. 2-3 g per day.

Eksplozja indonezyjskiego wulkanu

Eksplozja indonezyjskiego wulkanu - Wulkan TamboraEksplozja indonezyjskiego wulkanu - Mapa wyspy SumbawaEksplozja indonezyjskiego wulkanu - Krater wulkanu Tambora

Eksplozja indonezyjskiego wulkanu

Eksplozja indonezyjskiego wulkanu – 7. 04. 1815. On the Indonesian island of Sumbawa exploded volcano Tambora. Experts compared the strength of its 1000 US atomic bombs dropped on Hiroshima. The explosion brought with it 50 thousand. human victims. From the crater blown up about 150 km³ stones. The volcano threw into the atmosphere huge amounts of dust and sulfur dioxidea cloud stretched across the earth and covered the sun, another period has been recorded as the „year without a summer.” Summer frosts have caused damage to the collections of Europe and North America. In many areas were the cause of starvation.

Mapa mózgu – Komputerowy atlas biochemii

Mapa mózgu - Mózg

Mapa mózgu – Komputerowy atlas biochemii

Mapa mózgu – American scientists have provided online computer atlas of the human brain. The project cost approx. $ 55 million. During the development of the atlas was examined and mapped the biochemistry of two brains of adults. With the obtained data it shows that human brains combines 94% rotation-similarity. Atlas is similar to the multi-purpose GPS system the brain identifies landmarks in 1000 based on over 100 million data points each biochemistry and genes that reveal in it. Atlas is available at www.brain-map.org.

Ludzki ideał piękna – Człowiek wpisany w koło i kwadrat

Ludzki ideał piękna – Homo quadratus

Ludzki ideał piękna – Człowiek wpisany w koło i kwadrat

Ludzki ideał piękna – Człowiek wpisany w koło i kwadrat – figure popularized by Leonardo da Vinci approx. 1490, or Homo quadratus. The proportions are based on the so-called. the principle of the golden ratio. A smaller part of the section in such proportion greater, and more to the entire episode. After da Vinci proportions of man came to Albrecht Dürer. Which specifically determined the division of the ideal form: 1/2 h (the full height of a man) is the upper part of the body of step up, 1/4 h – length of the leg from the ankle to the knee and the distance from the chin to the navel, 1/6 h – height and width (including ear) face and the length of the hand and the wrist.