Physics

Theoretical Explanation: Solar System

Principle purpose of this lecture is to present on Theoretical Explanation: Solar System. Ptolemy explain the geocentric model, that the Earth is at   rest at the center of the Universe. Copernicus published the heliocentric model. Galileo explain his observations by telescope verified the he.....

Read More »

Presentation on Solar Flares

Solar flares are a violent explosion above the suns surface. A large amount of energy is released. Solar flares may last for 10 mins and will produce more energy than a million hydrogen bombs. There is a peak in this type of activity ever 10-11 yrs, during which large numbers of charged particle.....

Read More »

Exploration Goals of NASA

Exploration Goals of NASA is Earth Observing System. Understand Earth’s systems and its response to natural or human-induced change and Improve prediction of climate, weather, and natural hazards. More Exploration Goals are; Changes in solar activity influence Earth by disrupting telecommuni.....

Read More »

Space Infrared Telescope Facility: Herschel Experiment

Major purpose of this lecture is to present on Space Infrared Telescope Facility: Herschel Experiment. Space Infrared Telescope Facility exploring the universe in the infrared. Planned launch: December 2002 and expected lifetime: 5 years. Objective of Herschel Experiment: To perform a version o.....

Read More »

Lunatics: Sun, Earth, and Moon

The aim of this lecture is to present on Lunatics: Sun, Earth, and Moon. In a lunar eclipse, the Earth moves between the sun and the moon and casts a shadow on the moon. Lunar Libration: The spin of the Moon proceeds at a uniform rate while the orbit is at a slightly nonuniform rate. The spin .....

Read More »

Presentation on Sun Seasons

Prime purpose of this lecture is to present on Sun Seasons. Here briefly describe on Properties of the Sun; Influence on Earth: Gravity; Light and Solar wind and Life cycle of the Sun. Many people believe that Earth is closer to the sun in the summer and that is why it is hotter. And, likewise.....

Read More »

Cosmic Rays and Solar Flares

Cosmic rays are fast-moving ionizing particles from the Sun. The Earth’s magnetic field prevents them from reaching us because they would be very harmful. Solar flares (bursts of energy from the Sun) interfere with these satellite systems. Cosmic rays are not really rays at all, they are a stre.....

Read More »

Lecture on the Atomic Nucleus

Basic purpose of this lecture is to present on Atomic Nucleus. Two ways to rearrange nuclei and get energy. Fission: produces energy by breaking up massive nuclei like Uranium into less massive nuclei like Barium and Krypton; A-bombs; nuclear reactors needs Uranium 235, Plutonium 238. Problem.....

Read More »

How to Converting Mass to Energy?

General purpose of this lecture is to present on How to Converting Mass to Energy. Out of the special theory of relativity comes the most famous equation in science: E=mc². This equation tells us that mass (m) is just another form of energy (E). The c² is the square of the speed of light. 1 .....

Read More »

Acceleration Calculation

Acceleration means speeding up. Acceleration is the rate at which velocity changes. This can be an Increase in speed; Decrease in speed or Change in direction. Example: How can a car be accelerating if its speed is a constant 65 km/h? If it is changing directions it is accelerating. To calcula.....

Read More »

The Sun: A Nuclear Powerhouse

The Sun gives off energy. The energy must come from somewhere – there’s no free lunch. Conservation of energy is a fundamental tenet of physics. Now question where does the energy come from? Until the 20th century only two possibilities were known: Chemical reactions and Gravity. To und.....

Read More »

Solar Flare and Resulting Prominence

A solar flare occurs when magnetic energy that has built up in the solar atmosphere is suddenly released. Radiation is emitted across virtually the entire electromagnetic spectrum, from radio waves at the long wavelength end, through optical emission to x-rays and gamma rays at the short waveleng.....

Read More »