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.
Winter tires – Special compound of rubber and lamellas
Winter tires – The surface of the tire’s contact with the road surface is comparable to the A4 sheet. Driving on ice, snow or just on a wet but very cold road presents many challenges for tire manufacturers.
First of all, the rubber compound that the tire is made of. It must be flexible in the cold – the more the tread adheres to the surface, the better. Second, the shape of so-called lamellas or notches in the tread. They make the car better or worse on a slippery road that will not get out of the way, etc. In winter, it must provide traction and the shortest braking distance, but also the so-called drivability – driveability on snowy surfaces. Goodyear UltraGrip Performance tires, for example, have achieved this not only thanks to the use of special rubber. But also self-locking lamellas (literally biting into the ground). Does the hydrodynamic grooves discharge water from under the tire and increase the slip resistance on the so-called Water film (aquaplaning). These tires shorten the braking distance by up to 3%.
Rhinoviruses – Cause common colds
Rhinoviruses – They cause common colds. They are a nuisance, but in the long run, harmless and cease no causal treatment. After a few days because our immune system destroys itself intruders – to this point, but we will be ready to infect an average of one person.
Allow understand another person position
Allow understand another person position – In the first half of 2015. We found the mirror neurons so allow us to understand the position of another person that may even lead to a change of temperature of some parts of the body. Researchers at the University of Sussex in the UK, a group of 36 people showed three-minute films in which the actors put their hands in hot water, hot and ice, and the researchers measured the viewers heart rate and body temperature. When the subjects saw the film as a person shivering in the cold, dipping his hands in cold water, they felt chills. But it was not only a subjective impression. This change was detected thermometers. Temperature hand some test decreased by as much as 0.2 °C.