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Night Sky:
When you look up at the sky on a clear night, what do you-see? Most of it is dotted with twinkling stars. You may see the moon or Venus as a bright point or Mars as a reddish one. Venus is sometimes seen in the evening just after sunset and, at other times, in the morning before sunrise. Except for the planets, all sthcr points of light are stars. From our planet Earth, on a really clear, dark night, we aan see .about 6,000 stars. Stars and Constellations The night sky is interesting. The stars seem to fall into certain patterns. You must have seen the Saptarishi, also known as the Big Dipper or the Plough. It is a part of a bigger group of stars called the Great Bear or the Ursa Major which is seen in the northern sky. We can see many different star patterns like the Hunters, the Lion, the Dog, the Balance etc. These pictures are not there really in the sky. Our imagination has put them there. The early star gazers and the ancient astronomers traced out these star patterms and named them after gods and heroes, objccts or creatures which these groups of sqrs resembled in their imagination.
Objectives After completing this exercise you will be able to: 1. Sterilize and dispose off microbial cultures, 2. Dispose off the carcass of laboratory animals and the e
a. A point source of 60 Co emits equal numbers of photons of 1.17 and 1.33 MeV giving a flux density (i.e. fluence rate) of 5.7 * 10 9 photon cm -2 s -1 at a specified location
Define the term - Soil Flora Higher plants are, by and large, the most important group of primary producer organisms in the whole soil. The continuous decay of plants and plant
pour plate and direct microscope count
What is Tongue? The tongue is a major organ. You will agree that the tongue precisely reflects the state of our digestive system. How? Well, you may have experienced that occas
Procedure 1 . After the dissection experiment is over the dead animals are put in disposable paper bags and the bag is sealed. Animal tissues and excreta should also be put and
explain the factors that led to the decline of science in europe during iron agen..
Precautions : The following precautions should be taken while using UV lamps: 1) TJV lamps must always be properly shielded. 2)Wear approved goggles when working with or clo
Another way to observe the buoyancy of water Push a large cork to the bottom of a pail of water. Notice the quantity of force you have to apply to hold the cork at the bottom.
Medieval Science: We can record the sum total of the medieval achievement in the natural sciences in a few lines. It can be put down as a few notes on natural history a
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