Showing posts from September, 2023

PPT - Adhithya L1

About pythagoras

 Pythagoras of Samos (c. 570 – c. 495 BC) was an ancient Ionian Greek philosopher, polymath and the eponymous founder of Pythagoreanism. His political and religious teachings were well known in Magna Graecia and influenced the philosophies of Plato, Aristotle, and, through them, the West in general. Knowledge of his life is clouded by legend, but he appears to have been the son of Mnesarchus, a gem-engraver on the island of Samos or the city of Tyre. Pythagoras is best known for the Pythagorean theorem, which states that in any right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides. This theorem is one of the most important in mathematics, and it has many practical applications in surveying, navigation, and construction. Pythagoras is also credited with making significant contributions to music theory and astronomy. He believed that the universe was governed by mathematical principles, and he sought to understand the relationships between

Realms of the earth

  The four realms of the Earth are the lithosphere, hydrosphere, biosphere, and atmosphere. These realms are interconnected and interdependent, and they support all life on Earth. Lithosphere: The lithosphere is the solid outer layer of the Earth. It is made up of the crust and upper mantle, and it extends to a depth of about 100 kilometers. The lithosphere is constantly moving and changing due to plate tectonics. Hydrosphere: The hydrosphere is the water realm of the Earth. It includes all of the water on Earth, including the oceans, seas, lakes, rivers, groundwater, and glaciers. The hydrosphere covers about 71% of the Earth's surface. Biosphere: The biosphere is the realm of life on Earth. It includes all of the living things on Earth, from the smallest bacteria to the largest whales. The biosphere is found in all parts of the Earth's system, from the deepest oceans to the highest mountains. Atmosphere: The atmosphere is the gaseous layer that surrounds the Earth. It is made

Learning from nature

                                                         Learning from nature long ago, people began observing animals, birds, insects and plants. many things that they saw surprised them. they wondered if they could use what the saw. they saw the sharp teeth of the tiger, the huge curved tusks of the elephats and the long beak of the woodpecker. by chipping off bits, the stone turned into a pointed knife. this stone knife was tied onto a long stick, and it became the longest claw. this was the primitive spear. this spear was used for hunting and for protectionfrom wild animals. stone bone and shells were flattened and sharpened to make cutting tools, much like the sharp front teeth of rats. ...thank you...