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Observing sun spots
Use the telescope that you made in a last experiment. Set it up so that it points directly at the sun and focus it so that a clear and bright image of the sun is formed on a piece of white cardboard placed a short distance from the eyepiece lens. If sun spots are there on the surface of the sun you may be able to observe them as small dark spaces of irregular outline on the image. Caution. Do not look at the sun by the telescope, unless your eyes are protected by a dark glass filter.
Explosives : These include the commercial explosives, preparations and substances used as blasting agents, ammunition, fireworks etc. Some examples are, gun powder, chlorate mixtu
Objectives After studying this unit, you should be able to: 1. Categorise different radiations into ionising and no ionising types, 2. Explain the effects of radiations
Explain Hiccup reflex Actions - Respiratory Process It is also a reflex associated with stimulation of sensory endings in the gastrointestinal tract or other tissue through irr
Explain the Process of Filtration - Formation of Urine The kidneys form urine in three phases: simple filtration, selective re-absorption and secretion. Let us begin with the p
methods of heat transfer
Specific gravity of a liquid not mixing with water Pour oil into an open glass tube partially immersed in water until it forces water as far as the lower end. The relative leng
wave length of invisible co2 laser
ethane covalent radius
Explain Functions of the Pancreas - Digestive Action Trypsinogen and chymotrypsinogen are the inactive proteolytic enzymes of the pancreatic juice. When they come in contact wi
Fractures : It is not our intention to introduce you to many types of fractures that can occur or all the ways a first aider might deal with them. The essential thing is that you
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