Life on Earth – 1.75 billion years will keep life
Life on Earth – 1.75 billion years the Earth will keep life. Scientists have calculated that American and British. That means that life on Earth has survived 70% of their time.
Cicadas life cycle – While the north-eastern states of the US invaded by cicadas in the 17–year cycle. The south-east are experiencing the same thing, but in another, 13-year-old. What is the relationship between numbers 17 and 13. This is a prime number. Scientists suspect that these cycles are just that, not to have met with the life cycles of their natural enemies, who live in cycles 2- or 3-year-old. Avoiding in this way any predator that lives longer than one year and less than the same cicadas.
Contact pesticides – Research shows that exposure to pesticides during pregnancy increases the risk of developmental disorders in children (including autism) and cardiovascular disease later in life. These substances are also associated with obesity and diabetes. The European Commission after reviewing studies of pesticides in 1000, ordered to withdraw from the market approx. 700 of them.
Syllogomania – Mental disorder pathological collecting – According to the classification of mental disorders American Psychiatric Association throwing old stuff makes trouble every fifth person, and the problem of pathological collecting (syllogomania) applies from 2 to 6 percent of the population of the United States and Europe. The first symptoms appear in the teenage years and worse with every decade of life. Although the causes of disorder are still unknown, the patient requires psychiatric help. 75% of pathological collectors had also suffer from anxiety disorders and more than half are diagnosed with major depression.
Martian life – Could exist only in the first 600 million years of its existence. At least, so say scientists from the University of Rhode Island. Climate that prevailed at the time on Mars was wet and warm, experts believe. Theoretically, it is therefore possible that life arose here. Unfortunately, over time the planet dry and reigned on the hostile conditions in which they could not survive even the simplest organisms. Team of researchers came to these conclusions based on the analysis of mineral samples from Mars. The change came about. 4 billion years ago and was most likely the result of volcanic eruptions. Since then, the minerals formed without the aid of water and are very rich in iron.
Soil formed continuously – Erosion is natural process – Despite this, we consider it a non-renewable source. In comparison to the length of human life is not renewed fast enough. Formation centimeters of the soil takes hundreds of years. It is also a limited source. Now everything depends on how it is used. Currently, each resident of Poland belongs approx. 0.4 ha of farmland. Agricultural area decreased in the last hundred years. The fields were created factories and enlarging cities. This is not only unfavorable factor. Another reason is water erosion. Fertile soil is washed away and disappears forever. Erosion is a natural process, but human intervention in the landscape several times increases the impact.
Facebook friends – Aren’t seen too positively – In the study, almost 400 Australian students. Large number of friends, was associated with a greater sense of loneliness. According to the researchers, can be explained by this fact alone that the students are trying to compensate for deficiencies in real-life social acquaintances online. What’s more, people who have very substantial “collections” friends are not seen by others too positively. Scientists from Michigan State University gave a comparison to a group of volunteers fictitious persons. Which differed from each other only in the number of friends – from 102 to 902. The most friendly evaluators recognize users who have 302 friends. And then the more Facebook friends, the lower was the rating. Those with particularly large for groups of friends were even considered physically uglier from the less friendly.