What is an Electromagnet?
Prime objective of this lecture is to present on What is an Electromagnet? Electromagnet is a magnet made from a current bearing coil of wire wrapped around…
Physics
What is Resistance?
Resistance is the opposition to the flow of an electric current, producing heat. The greater the resistance, the less current gets through. Good conductors have low resistance. Measured…
How can we Control Currents?
Basic objective of this lecture is to present on How can we Control Currents? We can control currents with circuits. Circuit is a path for the…
Lecture on Electricity and Magnetism
General objective of this lecture is to present on Electricity and Magnetism. Electromagnetism is a branch of physical science that describes the interactions of electricity and magnetism,…
How to Measure Precipitation?
Main objective of this lecture is to present on How to Measure Precipitation. Raingage – A cylindrical container that collects rainfall and measures its depth. Tipping-bucket gage –…
What is Snow?
Snow falls from clouds that contain enough cloud droplets and ice crystals for precipitation to form. In order for snow to reach the ground without melting,…
Why Does It Rain?
When rain clouds are pushed up into cold air the rain drops form and become heavy enough to be pulled to the ground by gravity. Water…
Lecture on Rainfall Measurement
Major objective of this lecture is to present on Rainfall Measurement. Most rain gauges generally measure the precipitation in millimetres equivalent to litres per square metre. In this…
Types of Precipitation
Several types of precipitation exist and depend on the atmospheric temperature profile: Snow; Rain; Graupel and hail; Sleet and Freezing rain. Snow occurs from the Bergeron process, riming, and aggregation. The nature…
Presentation on Bergeron Process
The aim of this lecture is to present on Bergeron Process. For air with both supercooled water and ice: (1) Amount of water vapor is in equilibrium with…
Precipitation in Warm Clouds
Prime objective of this lecture is to present on Precipitation in Warm Clouds. Cloud physics is the study of the physical processes that lead to the formation,…
Lecture on Precipitation Processes
Basic objective of this lecture is to present on Precipitation Processes. Precipitation is water released from clouds in the form of rain, freezing rain, sleet, snow, or…
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