Science

Basic objective of this lecture is to present on Influence of Human Activity on the Environment. Improvements in agriculture health and medicine have produced a dramatic rise…

Optical Heterodyne Detection involves optical signal and local oscillator waves, whereas the mixing product is an electrical signal. It is a detection method which was…

General objective of this lecture is to present on Carbonate-Silicate Cycle. Earth has almost as much carbon dioxide as Venus. Volcanoes add carbon dioxide to the atmosphere. Carbon dioxide…

This lecture introduce on Ice Ages. Ice Ages are glacial episode during a past geological period. An ice age is a period of colder global temperatures and recurring…

Major objective of this lecture is to present on Public Awareness on Hurricane. In the early part of this century, coastal residents may have had less than…

Principle objective of this lecture is to present on Hurricane Katrina. Hurricane Katrina hit the U.S. on August 29, 2005. Winds of 140 mph created a 30-foot…

Paul Karl Feyerabend, Philosopher of Science was born January 13, 1924 Vienna, Austria. He was best known for his work as a professor of philosophy at…

Hurricanes are the planet’s most ferocious storms. They are known as cyclones in Australia and typhoons in southeast Asia. They bring massive waves and wind speeds…

The aim of this lecture is to present on Geographic Landforms. A landform is a feature on the Earth’s surface that is part of the terrain.…

The flag of Uzbekistan consists of three horizontal blue, white and green bands separated by two thin red fim briations, with a crescent moon and…

Prime objective of this lecture is to present on Flag of Turkmenistan. The flag of Turkmenistan was adopted on January 24, 2001. The green base represents Islam and…

The national flag of Tajikistan was adopted in November 1992, replacing the flag of the Tajik Soviet Socialist Republic of 1953. The red stripe represents Tajikistan’s…