Re: Manhole covers - why circular? [SPOILER] - Article 2459 - go-pugleaf

Article View: rec.puzzles

Article #2459

Re: Manhole covers - why circular? [SPOILER]

#2459

From: Timothy Vaughan
Date: Tue, 05 Jan 1993 18:34

9 lines
649 bytes

They are round so that they cannot fall through the manhole,
regardless of the orientation.

Any regular polygon can be oriented to fall through the hole,
unless the lip or ridge in the manhole is wide enough.

Other shapes, anyone?

Tim

Technical Details

Message-ID: <106199@bu.edu>

Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!rpi!bu.edu!buphyk.bu.edu!tvaughan

References: <1993Jan5.173440.10482@informix.com>

Show Full Headers

Complete Article Headers

Path: arc1-ca.pugleaf.net!sparky!uunet!zaphod.mps.ohio-state.edu!rpi!bu.edu!buphyk.bu.edu!tvaughan
From: tvaughan@buphyk.bu.edu (Timothy Vaughan)
Newsgroups: rec.puzzles
Subject: Re: Manhole covers - why circular?  [SPOILER]
Message-ID: <106199@bu.edu>
Date: 5 Jan 93 18:34:54 GMT
References: <1993Jan5.173440.10482@informix.com>
Sender: news@bu.edu
Organization: Boston University Physics Department
Lines: 9

Reply to Parent Message