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Locate Polaris, the North star, and comment on it's elevation over the Northern horizon. Using the keyboard controls (J, K and L keys), fast forward the program 6 - 12 hours and comment on Polaris' motion (if any). Where are the planets in relation to Polaris? On a clear night over the next couple of weeks, go outside after dark and see if you can locate the planets that you've identified [in Stellarium] as well as the brightest stars & constellations. The stars & constellations of spring & summer are now becoming prominent. If you have a pair of binoculars, it would be nice to conatin an observation using them as well.
INTRODUCTION : You would recall from your study of Unit 11 that LPG (liquefied petroleum gas) and other compressed gases can pose a danger in the lab. The gas (LPG) supply distrib
write 2 kinds of energy sources
Determine about the soil humus The organic constituents (organic colloids) are due to mainly the plants and partly the animals. They form only a small fraction and get transfo
What minerals attract lightning? Ans) Big structures and things that are metal attract lightning, also trees do. In fact, anything that is metallic having mineral may seem
Explain the Orthopnoea and Tachypnoea Orthopnoea: Dyspnoea occurs even at rest in severe cardiac congestive failure. This condition is called orthopnoea. Tachypnoea: It is a
Calculate the power of a light bulb that uses 36J of electrical energy in 6 seconds.
how do they protecte themselves
Ionising Radiations " The three types of ionising radiations mentioned above penetrate matter to different extent. Table summarises the nature, ionising power and penetration of th
Emergence of Science: We gave you a glimpse of the social structure in India during the Iron Age. With the emergence of ordered urban societies, the stage was set for a tre
Nature of scientific knowledge: Science, as we have seen, is inseparable from the rest of human endeavour. In the past few thousand years of human history, an immense fund of
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