changes in earth and sky

The electric power line enters our house through three wires. One is called the earth wire or ground wire. This carries no electricity. The earth wire is connected to a large metal plate buried deep in the ground. The remaining two wires carry electricity. One of these is mainta..

. Just prior to rainfall especially in early kharif days, the climate is warm and dusty because of thick cloudy cover in air not allowing the earth's reflected radiation to pass through. The air gets heated up due to absorption of long range waves from both direct and reflected source. Th..

Impact of Green House Effect - Change in the composition of air due to several human activities has brought about green house effect. Green house effect has brought about following phenomenal changes. The severity of these changes will aggravate further in the next 10-..

Green House Effect - Before green house effect is studied one needs to know what kind of radiation / sunshine we receive on earth. 'Sunshine' is a common man's term indicating all that we receive from sun. In a shallow perspective of common man, it may simply, mean light. But in a deep sc..

The value of g changes from place to place due to the elliptical shape of the Earth and the rotation of the Earth. Due to the shape of the Earth, From equation (4) Hence, it is inversely proportional to the square of the radius. It is least at the equator and..

The Doppler effect provides a convenient means of tracking a satellite that is emitting a radio signal of constant frequency. The frequency of the signal received on the Earth changes as the satellite is passing. If the received signal is combined with a constant signal genera..

Applications of Doppler Effect - The Doppler effect provides a convenient means of tracking a satellite that is emitting a radio signal of constant frequency. The frequency of the signal received on the Earth changes as the satellite is passing. If the received signal is combine..

According to this theory, all the different forms of life that occur today on planet earth, have been created by God, the almighty. This idea is found in the ancient scriptures of almost every religion. According to Hindu mythology, Lord Brahma, the God of Creation, created the living wor..

Electromagnetic waves returned to Earth by one of the layers of the ionosphere appear to have been reflected. In actual fact, the mechanism involved is refraction. As the ionisation density increases for a wave approaching the given layer at an angle, so the refractive index of the layer..

. I'll meet the raging of the skies. But not an angry father. The lovers were taken into the stormy waters. But the winds were hard and the tempest too strong. The boat soon capsized and the frail occupants of the boat fell into the lake and were soon drowned. Just at that moment Lord Ull..