Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

Re: apparent force



Date: Sat, 14 Feb 1998 23:49:34 -0500 (EST)
From: Raacc@aol.com
Subject: Re: Misconceptions--a comment

.... I agree ... but have never seen weight defined in any physics
text book as what a bathroom scale reads. ...

The bathroom scale was introduced as a response for an operational
definition in a particular situation (elevator). A more general term
is forcemeter; it corresponds to speedometer, accelerometer, voltmeter,
gaussmeter, etc. Nobody defines the concept of velocity by saying that
"it is what is shown on the dashboard of my car" but we accept it as a
particular "operational definition" in a given situation. What is wrong
with this?
Ludwik Kowalski

P.S. Many messages come "deformed" on my ASCII-only system. This happens
more often than last year. Why? What are these "3D" and "=", etc. which
often appear in the middle of words? Invisible ASCII characters should
remain invisible.

Isn's ASCII a system of communication to which we are still committed?
I suspect people compose messages on word processers and then send them
without properly performed conversions. How should we prevent this?