06-08-2011, 04:27 AM
year 253 Period of the Thirty Tyrants in the Roman empire.
Count to a million
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06-08-2011, 03:53 PM
254, a Texas telephone area code according to Wikipedia.
06-08-2011, 03:58 PM
year 255- Ma Jun, a Chinese mechanical engineer from Cao Wei, invents the South Pointing Chariot, a path-finding directional compass vehicle that uses a differential gear, not magnetics.
06-08-2011, 05:26 PM
Upcoming RPG XP project: Legends of the Flaming Falcons
In a distant future an ancient threat stirs...heroes of old take up their arms once more. For my writing project that includes my rmxp project I'm also maintaining a private wiki; if you wish to follow me, let me know. My developer blog can be found here: http://the-otherworld-tales.blogspot.be/ Gazetteer responsible for Pherione's Developer Interviews. My thread here. More info or questions? PM me
06-08-2011, 05:37 PM
257 is called a sexy prime.
Since 257 + 2 = 259, a semiprime, 257 is a Chen prime. It is also an Eisenstein prime with no imaginary part, and a Pierpont prime.
06-09-2011, 12:14 PM
258. Two-hundred and eight. It's an anagram of "eight-hundred and two".
; D
06-09-2011, 03:49 PM
260BC: Birth year of Zheng, who will later become the First Emperor of China (in 210 BC)
06-09-2011, 04:33 PM
The tesseract can be unfolded into eight cubes, just as the cube can be unfolded into six squares (view animation). An unfolding of a polytope is called a net. There are 261 distinct nets of the tesseract. The unfoldings of the tesseract can be counted by mapping the nets to paired trees (a tree together with a perfect matching in its complement).
06-11-2011, 04:44 PM
One hundred times two, plus seventy-four, minus twelve equals 262. :D
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