Thermometers
Major objective of this lecture is to present on Thermometers. A Thermometermeasures air temperature. A Thermometer works because matter expands when heated. Most thermometers are closed glass tubes…
Physics
How Do We Predict Weather?
Basic objective of this lecture is to present on How Do We Predict Weather. Since air masses interact in a relatively predictable way, meteorologists are able to…
Presentation on Optical Illusions
General objective of this lecture is to present on Optical Illusions. An optical illusion is a visual stimuli that is perceived by the eyes and then comprehended…
Kirchhoff’s Laws of Spectral Line
Kirchhoff’s Laws of Spectral Line focus on: Light of all wavelengths shines on an atom. Only light of an energy equal to the difference between “floors” will…
Sources of Infrared Light
Prime purpose of this lecture is to present on Sources of Infrared Light. Infrared light from the Sun accounts for 49% of the heating of Earth, with the rest…
Presentation on Spectral Lines
A spectrum is the amount of light given off by an object at a range of wavelengths. A spectral line is a dark or bright line…
Lecture on Color Blindness
The normal human retina contains two kinds of light sensitive cells: the rod cells (active only in low light) and the cone cells (active in…
Close Eye to Optical Illusions
Principle purpose of this lecture is to present on Close Eye to Optical Illusions. it is a tutorial study based presentation. An optical illusion is characterized by…
Why Does Our Mind See Illusions?
The Human brain put images together because it has learned to expect things; sometimes the data might get a little confused. We may see an illusion…
Lecture on Optical Illusions
Major purpose of this lecture is to present on Optical Illusions. Optical Illusions are something that deceives the eye by appearing to be other than it is. Illusions…
Temperature – The Kelvin Scale
Temperature – The Kelvin Scale named after Lord (William Thompson) Kelvin in 19th century Scottish physicist. There are one degree difference on the Kelvin (K) scale is…
Black Body Radiation
The aim of this lecture is to present on Black Body Radiation. Blackbodies emit light at all wavelengths. Very cool objects peat at radio wavelengths and very hot…
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