[time-nuts] Standards for units
cfmd at bredband.net
Wed Apr 4 19:31:08 EDT 2007
From: SAIDJACK at aol.com
Subject: Re: [time-nuts] Standards for units
Date: Wed, 4 Apr 2007 01:46:57 EDT
Message-ID: <d4f.603e679.334495d1 at aol.com>
> In a message dated 4/3/2007 19:29:25 Pacific Daylight Time, didier at cox.net
> An Arianne 5 rocket had to be destroyed with its cargo when it veered
> off course because of a faulty conversion from English to metric in the
> guidance software. What a bummer!
> I hate it when that happens!!!
> Hi Didier,
> actually unless there was a second explosion I don't know about, the first
> Arianne-5 proto-rocket exploded due to a variable parameter overflow (missing
> saturation check) in a calculation.
A very spectacular overflow indeed.
> The conversion problem you mentioned happened on a Mars mission.
This should shed some light over the manuvering details of that particular
> BTW: I didn't expect my email about our strange US units to start such a
> lengthy discussion on the board...
OK, thanks for reminding us who's fault it is. :)
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