Fossil Fuels vs. Alternative Energy
Physics

Fossil Fuels vs. Alternative Energy

Fossil Fuels considered to be less harmful than oil, but still limited in supply. Examples of Fossil Fuels: Petroleum (oil); Used to fuel vehicles and Coal (use in Powers electricity…
Organic Ingredients
Geography

Organic Ingredients

Primary objective of this lecture is to present on Organic Ingredients. Organic molecules only absorb UV rays whose energy matches difference between electron energy levels. Different kinds of…
Good Ozone and Bad Ozone
Geography

Good Ozone and Bad Ozone

This lecture introduce on Good Ozone and Bad Ozone. Good ozone: In the stratosphere, absorbs 97+ % of solar UV, protecting life from harm. This “good” ozone shields life…
Tour of Ozone Hole
Physics

Tour of Ozone Hole

Major objective of this lecture is to present on Tour of Ozone Hole. Dramatic loss of ozone in the lower stratosphere over Antarctica was first noticed in…
Geology of Venus
Geography

Geology of Venus

Venus surface is similar to Earth and Mars – few impact craters, volcanoes, and evidence of tectonics activities. But no plate tectonics. The volcanoes of Venus is…
Geology of Mars
Geography

Geology of Mars

Prime objective of this lecture is to present on Geology of Mars. The geology of Mars is the scientific study of the surface, crust, and interior of…
Carbon Dioxide Cycle
Geography

Carbon Dioxide Cycle

The mechanism by which Earth self-regulates its temperature is called the carbon dioxide cycle, or the CO2 cycle for short. If Earth warms up a bit,…
Greenhouse Effect on Earth
Geography

Greenhouse Effect on Earth

Earth’s atmosphere is slightly warmer than what it should be due to direct solar heating because of a mild case of greenhouse effect. The ground is…
Presentation on Greenhouse Gases
Geography

Presentation on Greenhouse Gases

General objective of this lecture is to present on Greenhouse Gases. Greenhouse gases absorb infrared radiation and prevent it from escaping to space. Carbon dioxide, methane, and nitrous…
Green House Effect
Geography

Green House Effect

The Earth’s surface thus receives energy from two sources: the sun & the atmosphere. As a result the Earth’s surface is 33C warmer than it would…
Special Theory of Relativity By Albert Einstein
Physics

Special Theory of Relativity By Albert Einstein

Special Theory of Relativity is Albert Einstein’s theory of how light behaves in relation to different perspectives. Suppose we want to find the length of an…
Special Relativity for Dummies
Physics

Special Relativity for Dummies

This lecture briefly explain on Special Relativity for Dummies in terms of Einstein’s Special Relativity. Einstein explained that when two objects are moving at a constant speed as…
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