I am so stressed from studying Artificial Intelligence. I am beginning to wonder why am i paying so much school fees when the lecturer obviously can't teach for nuts. And obviously 90% of the time is more of self study. I have come to a conclusion, to study A.I. you need R.I. Meaning to study Artificial Intelligence you need Real Intelligence. And obviously i don't have. But i might have Retard Intelligence. Muahaha.
Anyway do u know i love astronomy since young? Am especially infatuated with black holes. Black holes are somehow related to Einstein's general theory of relativity. Shall talk about that on my next entry or so if i have the time.
New definition of "planet"On 2006 August 24 the International Astronomical Union (IAU) decided on a new definition of "planet" which does not include Pluto.
The IAU members gathered at the 2006 general assembly agreed that a "planet" is defined as a celestial body that:
- is in orbit around the Sun
- has sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a hydrostatic equilibrium (nearly round) shape
- has cleared the neighbourhood around its orbit.
This means that the Solar System now consists of eight "planets" Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune. A new distinct class of objects called "dwarf planets" was also decided. It was agreed that "planets" and "dwarf planets" are two distinct classes of objects.
Some facts of PlutoPluto orbits beyond the orbit of Neptune (usually). Pluto is smaller than seven of the solar system's moons (the Moon, Io, Europa, Ganymede, Callisto, Titan and Triton).
orbit: 5,913,520,000 km (39.5 Astronomical Unit) from the Sun (average)
diameter: 2274 km
mass: 1.27e22 kg
In Roman mythology, Pluto (Greek: Hades) is the god of the underworld. The planet received this name (after many other suggestions) perhaps because it's so far from the Sun that it is in perpetual darkness.
Pluto was discovered in 1930 by a fortunate accident. Calculations which later turned out to be in error had predicted a planet beyond Neptune, based on the motions of Uranus and Neptune. Not knowing of the error, Clyde W. Tombaugh at Lowell Observatory in Arizona did a very careful sky survey which turned up Pluto anyway.
Pluto has not yet been visited by a spacecraft. Even the Hubble Space Telescope can resolve only the largest features on its surface. A spacecraft called New Horizons was launched in January 2006. If all goes well it should reach Pluto in 2015.
Pluto's orbit is highly eccentric. At times it is closer to the Sun than Neptune (as it was from January 1979 thru February 11 1999). Pluto rotates in the opposite direction from most of the other planets.
The surface temperature on Pluto varies between about -235 and -210 C (38 to 63 K). The "warmer" regions roughly correspond to the regions that appear darker in optical wavelengths.
Pluto's composition is unknown, but its density (about 2 gm/cm3) indicates that it is probably a mixture of 70% rock and 30% water ice. The bright areas of the surface seem to be covered with ices of nitrogen with smaller amounts of (solid) methane, ethane and carbon monoxide. The composition of the darker areas of Pluto's surface is unknown but may be due to primordial organic material or photochemical reactions driven by cosmic rays.
