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Pluto:
Pluto's existence was also proposed to account for deviations in the orbit of Uranus. Even after the influence of Neptune~had been accounted for, an American astronomer Percival Lowell, detected that the orbit of Uranus was still disturbed. Neptune's orbit too showed a similar disturbances. Lowell and Pickering did some calculations to predict the mass and radius of the orbit of Planet X which was supposed to cause these disturbances. In 1916, Pluto was discovered in about the right place in the sky. However, its mass turned out to be much smaller, about that of our Moon. Small, cold and dark, Pluto is about one-fifth of the size of the Earth. Its surface is coated with ,frozen methane. In 1938, a satellite of Pluto was discovered and named Charon. Not much is really known about Pluto. Pluto's orbit crosses that of Neptune's. No other planetary orbits cross in this way, and it is possible that Pluto is an escaped satellite of Neptune. Pluto's discovery had led astronomers to believe that it was the Planet X. But now calculations show that ,the mass of Pluto is too low to cause irregularities in. Uranus' orbit. Thus, the search for the elusive Planet X goes on.
What determines sinking and floating? Shape a piece of lead, tin or aluminium foil into the form of a little boat and float it on the water in a pan; now wad the metal foil fro
Question 1 What is Oracle Clinical? Bring out evolutionary effect of Oracle clinical applications in Pharmaceutical industries Question 2 What is the significance of MedDR
ecological characteristics of deserts
a food chain that does not start with plants??
Explain Precipitation - Antigen-Antibody Interaction If Ag-Ab are present in an appropriate ratio, they form a precipitate in blood. Turbidity is developed, this can be measure
Sphyllis
A siphon fountain Fit a glass jar (a flask from a used electric bulb) with hole rubber stopper. By one hole place a jet tube which will extend about half way to the top of the
The Copernican Revolution: The Copernican model consisted of the Sun at the centre with the six planets, Mercury, Venus, the Earth with the Moon-round it, Mars, Jupiter and
To show that soil contains air:- Place some soil in a glass jar or bottle and slowly pour water over it. Observe the air bubbles that increase by the water from the soil.
vanounmoolan
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