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  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

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#26 2016-04-19 09:57:33

Nehushtan
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Registered: 2013-03-09
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Re: What had you learned today that you found interesting?

Olinguito wrote:

I learn that it is possible to make a tetradecahedron with just regular hexagons and squares.

It is also possible to make a truncated icosahedron with regular pentagons and hexagons.

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#27 2017-06-18 08:35:05

Nehushtan
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Registered: 2013-03-09
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Re: What had you learned today that you found interesting?

Today I learned that Tabriz is a city in Iran, and that peridotite is an ultrabasic rock.


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#28 Yesterday 05:35:53

Nehushtan
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Registered: 2013-03-09
Posts: 897
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Re: What had you learned today that you found interesting?

Today I learn that types of ceramic pottery include earthenware, stoneware, and porcelain. These are fired at increasingly higher temperatures. Earthenware is porous and so is often glazed.

Also, Capella is the brightest star in the constellation Auriga.

Last edited by Nehushtan (Yesterday 06:33:16)


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