Pro Apollo – Lunar suit, versions A7L and A7LB
- In use over the years: 1967 – 1975
- Space ships: A7L – missions Apollo 7 – 14, A7LB – missions Apollo 15 – 17, Skylab and Apollo-Soyuz.
- Mass: A7L – 28,1 kg, to Extra-vehicular activity 34,5 kg, A7LB 29,3 kg and 35,4 kg to (EVA).
Pro Apollo – Since 1961, Americans have focused on the Apollo program, the goal of which was to get man to the moon. After the Apollo 1 fire, the emphasis was on fire-resistant properties. This is how the A7L type suit was created, which was used by Apollo 7 to 14. So also Neil Armstrong (1930 – 2012) and Buzz Aldrin (born 1930). The suit had better protection against dust and temperatures. Basic life support up to 6 hours.
Along with the suit, a portable life support system (called a backpack) was also developed. For short stays in open space (EVA). During the Apollo 15 to 17 missions, and at the Skylab space station, an improved version of the A7LB suit was created. Instead of a backpack, it had special instrumentation attached to the astronaut’s belt.
Ricinus communis – Castor oil plant
Ricinus communis – It probably comes from the north of Africa. It is a 10-meter tall plant that enjoys great popularity in gardening.
- Deadly dose: 15 – 20 seeds
- Death: to 1 week
- Poison: ricin
- Aftermath: renal, liver and spleen failure
- Where it grows: in all tropical and subtropical areas of the world
- Occurrence in Poland: artificially bred
The most dangerous are the bars of its seeds, about 6,000 times more aggressive than cyanide. Causes agglutination of red blood cells and damages the liver, kidneys and spleen. The first symptoms are similar to a cold, followed by headaches, mouth burning, vomiting and internal bleeding. It gradually attacks the entire human circulatory system.
History of the plant:
Castor oil is squeezed from the seeds, from which soap, ointments, drops or perfumes are made. Apparently Cleopatra applied it to her eyes to have a “wider perspective”. In 1978, a Bulgarian secret interview was used to murder the writer and journalist Georgie Markov, who after several days of the fight for his life died of kidney failure in a London hospital.
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.
First human heart transplant – management Christiaan Barnard
First human heart transplant – management Christiaan Barnard – In 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.
Human body bacteria – Weight of digestive tract microorganisms
Human body bacteria – Weight of digestive tract microorganisms – 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.
First human vehicle – Sledge used to carry loads
First human vehicle – Sledge used to carry loads – According to historians, the first vehicle used by the man on the land were sledge. People used them to carry loads already 5000 years B.C.