Light pillar – Sun pillar – Optical phenomenon in atmosphere

Light pillar - Sun pillar (1) - NOAALight pillar - Sun pillar and Sun dog (parhelion) - NOAALight pillar - Sun pillar forms as the sun rises over the Arctic plain - NOAALight pillar - Sun pillar - (NOAA Photo Library)Light pillar - Sun pillar - Optical effect march sunset - NOAALight pillar - Sun pillar - Halos, arcs and sundogs - Antarctica, South Pole Station, 1981(NOAA Photo Library)Light pillar - Sun pillar - Illuminated Clean Air Facility - NOAALight pillar - Sun pillar - December sundog - NOAA
 
 
 
Light pillar - Sun Dog and Turbo TrainLight pillar - Sun pillar (2) - NOAALight pillar - Sun pillar (3) - NOAALight pillar - Sun pillar (4) - NOAALight pillar - Sun pillar (5) - NOAALight pillar - Sun Dog - Ice crystals formed in the stable morning airLight pillar - Sun pillar - Lake LucerneLight pillar - Sunset at the port of Plouhinec Pors Poulhan in Brittany
 
 
 
Light pillar - Sun pillar - Seen when the sun is still behind the horizon - False SunriseLight pillar - Sun pillar - Susak, island in Croatia, view from the islandLight pillar - Sun pillar - Seen when the sun is still behind the horizon - False Sunrise (parhelion)

Light pillar – Sun pillar – Optical phenomenon in atmosphere

Light pillar is an optical phenomenon. That arises in very cold weather when there are ice crystals in the shape of tiles in the air. They are also visible in clearly illuminated parts of cities. They are typical of the clouds of the high floor, but in the big cold they form at earth. They reflect then light from strong sources such as lanterns or fireworks on new year’s eve. As a result of such a source of light, the observer can see high light. Most often you can see them just before sunrise, or soon after his west. Another name of the whole phenomenon is a solar pillar.

Ricinus communis – Castor oil plant

Ricinus communis - Southern MexicoRicinus communis - Botanic Garden (Frankfurt, Germany)Ricinus communis - Venezuela
 
 
 
 
 
Ricinus communis - Castor oil plant (1)Ricinus communis - Castor oil plant (2)

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 - Goodyear UltraGrip Performance

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%.

Allow understand another person position

Allow understand another person position - Neuron

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.