Science

Principle objective of this lecture is to present on Kelvin Scale. The kelvin (symbol: K) is a unit increment of temperature and is one of the seven…

The aim of this lecture is to present on Rankine Scale. Rankine is a thermodynamic (absolute) temperature scale named after the Scottish engineer and physicist William John…

Major objective of this lecture is to present on Fahrenheit Scale. In this scale, the freezing point of water is 32 degrees Fahrenheit (°F) and the boiling…

Main objective of this lecture is to present on Celsius Scale. The Celsius temperature scale was previously known as the centigrade scale. The degree Celsius (symbol: ℃)…

Prime objective of this lecture is to present on Vertical Structure of the Atmosphere. It is a tutorial study based lecture. The changes in the atmosphere with…

Basic objective of this lecture is to present on Dalton’s Law of Partial Pressures. Dalton found that the total pressure of mixed gases is equal to the…

General objective of this lecture is to present on Digital Barometer. It is a tutorial study based lecture. A digital barometer measures air pressure. It is used…

Air Pressure is the force exerted on you by the weight of tiny particles of air (air molecules). Although air molecules are invisible, they still…

Volcanoes can be extremely hazardous natural phenomena. That is why it is important to understand as much as possible about them, in an attempt to…

Lake Nyos is a crater lake inside a dormant volcano. The lake had become laden with carbon dioxide gas. This gas had suddenly bubbled out of…

This lecture introduce on Gas Monitoring in Volcano. Commonly gas output from a volcano increases or changes composition before an eruption. As magma rises to the surface it…

Principle objective of this lecture is to present on Deformation Monitoring.  “Tiltmeters” are used to measure the deformation of the volcano. The tiltmeters measure changes in slope…