Essays on Earth

Abstract – The Earth is characterized by a weak magnetic field with a magnitude ranging from 25- 65. Specific sensors capable of working within the earth’s range are required to measure its field. These sensors are called Magnetometers. Various principles have been employed in measuring the earth’s magnetic field namely: Magnetic Compass, Fluxgate principle, Superconducting...

Abstract: The following articles produce an introduction to Earth-fil dams, various design elements as to how they are build and maintained and construction procedures needed to have adhered. Furthermore, it is explored the benefits and downfalls of these designs elements, what factors may affect and precautions needed to be taken to full-fill the dam’s purpose....

Introduction, Scientists estimate the earth formed 4.5 billion years ago this estimation comes from radiometric dating of the oldest rocks, meteorites and moon rocks. For many millions of years, early Earth was pummeled by asteroids and other celestial objects. Temperatures also would have been very high (with water taking the form of a gas, not...

1. Introduction From the beginning of humanity, one of the fundamental obligations is protecting themselves from weather, dangers or attacks, i.e. sheltering. In ancient times, the only option for seeking protection from natural dangers was caved. Later on, people found some methods to construct their living areas. Even in the modern age, everybody still needs...