changes in earth and sky

Month by month, as the earth orbits the sun, we can watch the constellations move across the sky. In summer, in northern skies, we can see the little bear with its long tail. In winter, a very different pattern of stars lies above. Orion, the hunter, one of the most be..

Properties of earth materials Objects in the sky Changes in earth and sky..

Even before Sir Edward Appleton's pioneering work in 1925, it had been suspected that ionization of the upper parts of the Earth's atmosphere played a part in tile propagation of radio waves, particularly at high frequencies. Experimental work by Appleton showed that the atmosphere recei..

The dipole pattern of earth's magnetic field is disturbed due to solar winds. Solar winds are a stream of charged particles coming from the sun. These particles ionise the atmosphere above these poles which display a light high up in the atmosphere. This phenomenon occurring in the arctic..

. Earth's atmosphere in its present form, is evolved and even now being influenced by earth's movement on its axis as well as sunlight. These two parameters decide what type of atmosphere we have now - its composition as well as the total height of atmospheric cover around the h..

Environment of earth includes the whole of atmosphere, hydrosphere as related to biosphere. Therefore, environment includes nature, composition of air, characters of hydrological parameters, sunshine, air pressure, temperature, water resources - their storage and flow and all other physic..

The atmosphere resource of our world is unique and available to our planet only. No other planet is found to have similar atmosphere. Earth's atmosphere is a legacy from history of this planet. It was formed billions of years back. In the formative years, as the earth star..

An object is said to be at rest if it does not change its position with respect to its surroundings. Have you watched the night sky? You have observed that the position of stars and planets change while you remain stationary. In reality the earth is movin..

Motion and Rest - Imagine you are travelling in a moving train. Do you observe any change in your position with respect to your co-passengers? Is there any change of scene you view through the window? The change of scene indicates that the train is moving. That is, an ..

. Another natural phenomenon related to the scattering of light is the red appearance of the sun at the sunset and sunrise. At these times the sunlight has to travel a large distance through the atmosphere. The blue and the neighboring colors are scattered away and the red light reaches our eye. Al..