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How to make a devil diver (Cartesian diver)
Find a tall glass jar with a quite wide mouth. Wrap a few turns of copper wire about the thin part of the rubber bulb from a medicine dropper. Fill the jar brim full of water. Put a little water in the bulb and float it in the jar of water. The bulb should have enough water to bring it nearly to the point of sinking. At this point approximately all the rubber will be under water. Considerable adjustment will be needed. Remove air from the bulb a bubble at a time by pinching the bulb.
Give reason for the benifits of our technological development not reaching all the strata of our society.
Flammable Solids : Flammable solids are substances which are flammable or liable to spontaneous combustion or emit flammable gases on contact with water. Examples are: camphor, ci
What does regolith mean? Ans) This refers to a layer of loose surface material covering bedrock.
factors which decide the broad area of Scientific activity
Describe the formation of igneous and metamorphic rocks? Ans) Igneous rocks are formed by volcanic action and due to of volcanic activity. Metamorphic rock is formed by a co
Floating a needle on water Thoroughly dry a steel needle. Place it on the tines of a dinner fork and gently smash the surface of the water in a dish with the fork. If you are c
Weighing moisture again The similar experiment can be done with a bath towel. Wet the towel and wring it out. Hang it on a coat hanger. Hang the coat hanger on single end of a
Define Factors for hypothalamic control of anterior pituitary gland Thyrotropin Releasing Factor (TRF) which causes release of TSH. Corticotropin Releasing Factor (CRF
can you give explanation on RPME and its working
When, in the geologic column, did dinosaurs become extinct at the Cretaceous-Tertiary boundary
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