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Newsgroups: alt.sci.physics
From: "dlzc" <dl...@cox.net>
Date: 2 Apr 2007 15:37:09 -0700
Local: Mon, Apr 2 2007 6:37 pm
Subject: Re: ships and horizon
Dear Jeremy Watts
On Apr 2, 1:43 pm, "Jeremy Watts" <jwatts1...@hotmail.com> wrote: > how far would a ship with a 20m mast have to sail in http://home.att.net/~numericana/answer/formula.htm > order for an observer 1.5m high to view it disappear > over the horizon? Solve it once for the 1.5m person, use the same relationship from this point on the horizon to the mast top. Adding the two should be pretty close. David A. Smith You must Sign in before you can post messages.
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