[USMA:48334] Fw: A Nanon? Is that a REALLY small moron?

2010-08-05 Thread John M. Steele
I finally found the "contact us" link and how to use it.  Commented as follows to the Managing Editor: It is not clear which of your reporters wrote the piece http://times-news.com/local/x1778832543/ARC-grants-to-help-FSU-Mountain-Ridge August 3, 2010 ARC grants to help FSU, Mountain Ridge so I

[USMA:48333] Re: Use of lumens for flashlights

2010-08-05 Thread James R. Frysinger
You've gone beyond my point, John. You're discussing the **importance** of comparing light sources by specifying their output in lumens rather than in candelas (they said "candlepower"). My point was that their analogy made it easier to visualize the distinction between the quantities measur

[USMA:48332] Re: Use of lumens for flashlights

2010-08-05 Thread John M. Steele
A real torch (a flaming brand) would provide rather omni-directional (but flickering) illumination.  Every flashlight I have ever used has a rather narrow beam angle and you have to shine it on what you want illuminated.  (Maglite, and perhaps others, allow you to remove the focusing assembly

[USMA:48331] Re: Use of lumens for flashlights

2010-08-05 Thread Patrick Moore
Aren’t flashlights used for general illumination, for instance when you enter a dark room? (Off topic would be discussion about whether international law should force everyone to call them torches.) A spotlight is designed differently. From: "John M. Steele" R

[USMA:48330] Re: Use of lumens for flashlights

2010-08-05 Thread John M. Steele
Those prices are "staggering." I'm not sure I agree with their lumens vs candlepower argument.  The purpose of a flashlight is spot, not general illumination.  Either total lumens or candlepower alone is an incomplete spec leaving you unable to determine whether it meets your needs.  You also n

[USMA:48329] Re: A Nanon? Is that a REALLY small moron?

2010-08-05 Thread John Frewen-Lord
How about a Megon? - Original Message - From: John M. Steele To: U.S. Metric Association Sent: Thursday, August 05, 2010 11:37 AM Subject: [USMA:48328] Re: A Nanon? Is that a REALLY small moron? "Micron" was so widely accepted and used that I checked. It was once accept

[USMA:48328] Re: A Nanon? Is that a REALLY small moron?

2010-08-05 Thread John M. Steele
"Micron" was so widely accepted and used that I checked.  It was once acceptable to CGPM (ca 1948) and is listed in the history section of the SI Brochure, Resolution 7.  It was later deprecated as a bad practice.  There is no nanon in Resolution 7.  The micron was abrogated by amendment of Res