Editing 473: Still Raw
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==Explanation== | ==Explanation== | ||
− | + | [[Cueball]] has been thrown out of his house because he believes that {{w|Pluto}} should never have been a {{w|planet}}. Pluto was the ninth planet in our {{w|solar system}} between 1930 and 2006. (Jupiter was thought to be the ninth planet [http://spaceweather.com/swpod2006/13sep06/Pollock1.jpg from 1807 to 1845.)] In 2006 the {{w|IAU}} reclassified Pluto as a {{w|dwarf planet}}. The reasons are {{w|IAU_definition_of_planet|complicated}}, but the basic issue is that like {{w|1 Ceres|Ceres}}, {{w|2 Pallas|Pallas}}, {{w|3 Juno|Juno}}, and {{w|4 Vesta|Vesta}}, Pluto is too small to {{w|clearing the neighbourhood|function as a planet}} in the solar system. [http://www.youtube.com/watch?v=Z_2gbGXzFbs Here is a good explanation.] | |
− | + | In the title text, the airplane/treadmill argument starts when someone asks whether an airplane can take off while it is on a treadmill that is opposing its progress (pulling it backward). The question usually leads to arguments because it is posed ambiguously. Properly defining the question shows that the airplane can indeed take off (because its forward motion is provided by its propeller/jet engine, not its wheels, which are free to spin at any speed) and experiments (such as Mythbusters') bear this out. | |
− | + | http://blog.xkcd.com/2008/09/09/the-@#$%&!-airplane-on-the-@#$%&!-treadmill/ | |
− | + | http://www.airplaneonatreadmill.com/ | |
− | The statement about being wrong is likely a reference to [[386: Duty Calls]] | + | The statement about being wrong is likely a reference to [[386: Duty Calls]] |
==Transcript== | ==Transcript== |