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…
Physics
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…
Discrete Air Masses
General objective of this lecture is to present on Discrete Air Masses. Air Mass Replacement Brings Temperature Changes. Location of high or low pressure centers provides information about: Wind…
Quantification of Radiation
General purpose of this lecture is to present on Quantification of Radiation. It divided into two parts: Quantifying Radioactive Decay and Quantifying Exposure and Dose. There are many different…
How X Rays Work?
Wilhelm Conrad Roentgen discovered X Rays. In an x-ray tube, negatively charged electrons are accelerated across a potential to a positively charged anode (typically made of…
Radiation Awareness
Main objective of this lecture is to present on Radiation Awareness. This lecture focus on to increase public understanding of radiation and radioactivity and provide basic radiation-science…
Units of Radioactivity
Main purpose of this lecture is to present on Units of Radioactivity. Some radio-nuclides however survive to eventually reach the surface of the earth. Among these are…
Radiation and Radioactivity: Units and Quantities
Primary purpose of this lecture is to present on Radiation and Radioactivity: Units and Quantities. Here briefly focus on Quantities (mass, volume, time, etc.) vs. Units (grams,…
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