What is the physical state of fire?
(/) None. Since fire is not made of matter, it cannot be fitted into any physical state. Though we see and feel the flame, it is only energy. Fire catches wood, for example, when it exceeds 260 °C. At this…
Why do women vomit so much when they get pregnant?
The biggest reason is the increase in progesterone production. In the first three months, this hormone is generated mainly in the ovary. It prevents the body from rejecting the fetus and increases the endometrium, the inner tissue of the uterus…
What do each of the 12 houses in a birth chart mean?
– (Inara Negrão/) 1st house: ASCENDANTIt governs appearance and attitudes, it is our “front”. If I could speak, this house would say: «I am». House 2: MONEY AND POSSESSIONIt is the house of values, both moral and material – its…
How big would Noah’s ark have to be to fit everyone?
– (Orlandeli/Strange World) Making a calculation with the right to approximations and, of course, some assumptions, we came to the conclusion that the ark should be 40 meters longer than the one built by Noah. How did we arrive at…
Who was the «man» in the iron mask?
motivated by speculations in a book series The three Musketeersby Alexandre Dumas, is one of the greatest mysteries of France in the 17th century. According to the author, the King of France Louis XIV kept a prisoner condemned to forever…
How to become a medical examiner?
»> TV series about the scientific investigation of crimes are a hit. In Brazil, this work is done by two professionals: the coroner and the criminal expert. This month, we’re talking about coroners, and in February, we’re talking about CSIs.…
What are stun bombs?
They are part of the so-called “distraction weapons”used when you want frighten or disable an enemy without killing him. A stun bomb itself is similar to military grenade common. (Photo: Getty Images) When triggered, it ignites a chemical mixture that…
What is collective hysteria?
It is a psychological disorder in which a group of people start to have, at the same time, a strange behavior or become ill without an apparent cause. Outbreaks of collective hysteria, also known as mass psychogenic illness, are more…
How do Eskimos live?
On ice and snow, subjected to temperatures down to -45 °C. The word “Eskimo” refers to ethnic groups that have occupied the far north of the planet since 5,000 BC Currently, there are about 150,000 people, occupying a coastal strip…
What are the functions of water in the human body?
Water is not only important, but indispensable for human life, representing about 60% of an adult’s weight. In babies, the proportion is even higher: 70%. It is the most important element in the body, the main component of cells and…