For many thousands of years in the consciousness of primitive humans, the concepts of “heat source” and “warmth” itself were inseparable. In attempt to understand these processes interesting theories were born. Beginning in the 17th century, there were two theories about the origin of heat, and the struggle between them, which lasted more than 200 years, ending only in the middle of the 20th century By the middle of the 19th century scientists came to a conclusion that caloric does not exist and Heat is caused by the movement of particles within bodies.

There are several conspiracy theories that some secret society governs the world. For example, the Illuminati, originally what occult-philosophical associations were called as a rule in opposition to the authorities. But now conspiracy experts say, this is a small group of the richest people in the world, who have leverage over the world leaders and control the activities of many if not all, states.

People have used polymers since the Stone Age: Wool and Leather contain protein; cellulose is the main component of fabrics, papyrus and paper. Throwing out such materials would not make one concerned for the environment because they decompose fast. At the beginning of the 20th century mankind mastered the manufacturing of artificial and synthetic polymers. The products proved to be light and durable but , the coming of the polymeric age was overshadowed by the failure of nature to expediently get rid of such compounds.

Allergy is a disease in which the immune system is attacked not only by the usual pathogens but also by innocuous substances such as pollen, cat hair, dust, food etc. As a result, the patient has watery eyes, itching; redness, profuse sweating and they may also have problems with the intestines. Some manifestations of allergy are very dangerous, like the4 patients with laryngeal edema start to suffocate and an individual intolerance to the medicine can make treatment impossible.