Ansible Interview

Jeff Wilson · 28 Jan 2009, 04:24 · from 2009-January.txt.gz

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From: jwilson at io.com (Jeff Wilson)
Date: Tue, 27 Jan 2009 22:24:37 -0600
Subject: (urth) Ansible Interview
In-Reply-To: <39ed084f0901271025t6f23e05ar18525d34ce73ba8e at mail.gmail.com>
References: <60016944C0A74B77B9BDFC5E98C39B25@GATEWAY>	<497CFDE6.2090104 at doubtfulpalace.com>	<D9DA56007C5846C9A0A33DA17DB4B3B0@GATEWAY>	<39ed084f0901252206n4b735e9ax284ba02febad5be2 at mail.gmail.com>	<497D9B92.5010708 at io.com>	<39ed084f0901260741k52c49b8csc93ef26cfed2dce9 at mail.gmail.com>	<273409710901270919g5b0e3156rb0990890a5723af7 at mail.gmail.com>
	<39ed084f0901271025t6f23e05ar18525d34ce73ba8e at mail.gmail.com>
Message-ID: <497FDE05.6090505 at io.com>

Matthew Groves wrote:
  > Imagine a roughly circular cross-section of the whorl, with the long
> sun as a point light source in the center.  Put a little stick-figure
> Silk down at 6:00.  Draw a cross-section of a bowl resting on with its
> bottom on the surface of the Whorl at, say, 1:00.  Sunlight shines
> into the valley at all times except shadelow.  Now, draw another bowl
> at 2:00, but tilt the bowl counterclockwise until the rim begins to
> eclipse the sun.  Now you've got shadow in your bowl.  If you draw an
> arrow indicating Silk's line of sight, you should find that he can see
> the shadow in the bowl.

I suppose that counts as "beyond the shade" in that the bowls are 
farther away than the shade is, though the direction is off about 30 
degrees.

-- 
Jeff Wilson - jwilson at io.com
< http://www.io.com/~jwilson >

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