Geodetic surveying, or surveying for short, is the second oldest profession in civilization. Geodetic surveying is the science of measuring the Earth. The Pharaohs of Egypt employed surveyors called harpedonapata to measure and divide the land using simple geometry....
The decrease in ozone concentration in the middle layers of the atmosphere – mainly in the stratosphere – is extremely damaging to life on earth, and is largely caused by emissions of halogenated hydrocarbons produced by man, CFCs, HCFCs, halons, carbon...
The electrification of cities and public lighting has been a challenge and an improvement for all societies. We are going to talk today is the coal or arc lamp. It was very important in the nineteenth century , since they were the first streetlights used on...
The constant and dynamic movement of the ocean is more intense and visible on the surface. Waves, tides and surface currents promote the mixing of ocean waters, which has effects on life in the seas. The currents and the waves are influenced by the winds. The winds in...
