What is an Emulsion? In the world of cosmetics, âemulsionâ is a common term. Most lotions and creams are emulsions. Mix two fluids that usually donât mix together well and you have an emulsion. Think oil and water getting along happily. You can also think of mayonnaiseâvinegar water mixed with oil (usually soybean, but we recommend looking for alternatives) whipped into a creamy spread. How do they do it?
Why is Pluto no longer a planet? In August 2006 the International Astronomical Union (IAU) downgraded the status of Pluto to that of dwarf planet.. This means that from now on only the rocky worlds of the inner Solar System and the gas giants of the outer system will be designated as planets.
Since its discovery in 1930, Pluto has been a bit of a puzzle: 1  It's smaller than any other planet -- even smaller than Earth 's moon. 2  It's dense and rocky, like the terrestrial planets (Mercury, Venus, Earth and Mars). 3  Pluto's orbit is erratic. 4  One of its moons, Charon, is about half Pluto's size.ere's how Resolution 5A defines a planet: Pluto is relatively round and orbits the sun, but it does not meet the criteria because its orbit crosses Neptune's orbit. Critics of the resolution argue that other planets in the solar system, including Earth, have not cleared the neighborhood around their orbits.