If the perpendicular bisectors of the three sides of the triangle are drawn, they will intersect at a point. Any one of the angular points of the triangle must be joined to the point which intersects. Now, if you draw a circle with a radius equal to the length of this connecting arm, you will get the circumcircle. Whose center is the circumcenter?

If the bisectors of the three angles of a triangle are drawn, they will intersect at a point inside the triangle. At the point of intersection, draw a perpendicular to any side of the triangle from that point. Now if we draw a circle from the point with a radius equal to the length of the perpendicular drawn on the arm, we will get the incircle. The center of which is the incenter.

Quantum theory is considered to be the most successful and accurate theory in physics so far. Quantum theory has succeeded in almost every aspect of the physical world. Many consider this to be a universal theory. But a theory about universal theory leaves quantum theory behind. That is – the quantum theory is complex and difficult to understand. But the universal theory would be simple. Everyone can easily understand this.

Clouds are condensed water vapor. The water of the river or the sea turns into water vapor in the heat of the sun. As water vapor is lighter than air, it rises upwards. Then they combine to form clouds. They move from one place to another with the wind. Again this water vapor rises up and loses heat and becomes water. Then these waters fall to the ground as rain. Hail showers occur after very hot weather. Because when the weather is hotter, the distance between the water vapor particles increases. As a result, water vapor becomes lighter. Being lighter than normal, they rise at a much faster speed. This fast-moving vapor becomes clouds and reaches the level of the atmosphere where the temperature is very low.

Thus, when water vapor or clouds enter the extremely cold parts of the atmosphere, the water vapor particles and water particles gradually turn into ice. At some point these ice pieces fall to the surface with rain. Basically this is hail. Although the ice is very big in the sky, it melts and becomes smaller as it falls down. As a result, the ice that we see in hail is much smaller in size.

The Mesozoic Era (250 million years ago) lasted about 200 million years through the Triassic and Jurassic periods, ending with the Cretaceous Era 65 million years ago when a meteorite hit the Earth. With this comes the end of the reign of dinosaurs on earth. The continents were not separate as they are now, the whole world was one continent called Pangea.

Then the land destroyed by the meteorite was covered in desert. The climate was hot and dry. Then only reptiles and mammals roamed the earth. The temperature gradually started to drop, but the carbon dioxide levels in the air were still high. Plants grow slowly. Plant species such as ferns tend to be more widespread.

The final phase of the Mesozoic era was the Cretaceous period. At this time, the continents began to separate from each other. As a result, dinosaurs evolved and species experienced extreme diversity. Ecosystems gradually become stable and complex. This led to the development of mammals.

Ecosystems during the Mesozoic Era were not as complex as they are today. Dinosaurs were so large because of the adaptation of their bodies to the climate and ecosystem. At times during the Mesozoic Era, carbon dioxide levels reached 3-5 times normal levels today. Due to this the plants grew in abundance. In other words, there would have been an explosion of plant life on the planet. Along with this, the oxygen level also increased. At that time there was an abundance of food in the world, but the number of its predators was few.

According to this theory, extinct ecosystems and such climates caused dinosaurs to grow so large. Looking at the present, you can see how complex the current ecosystem is. And how damaged the Earth’s climate is. This is mainly the reason why no animal in the present world is as big as dinosaurs. There are many other theories behind the size of dinosaurs but this theory is more convincing.

It is the brain. Because the brain is so rich in nerve cells, or neurons, it is the most energy-demanding organ, using one-half of all the sugar energy in the body. Brain functions such as thinking, memory, and learning are closely linked to glucose levels and how efficiently the brain uses this fuel source.

The global demand has not reached its peak yet. But year by year, global energy consumption is getting higher. Therefore the use of fossil fuels is getting higher too. We simply do not have enough renewable energy to supply our industries’ and populations’ full demand. That’s why the world’s non-renewable energy running out.