Welcome to the NavList Message Boards.

NavList:

A Community Devoted to the Preservation and Practice of Celestial Navigation and Other Methods of Traditional Wayfinding

Compose Your Message

Message:αβγ
Message:abc
Add Images & Files
    or...
       
    Reply
    Re: Ah, give someone a calculator.......
    From: Robin Stuart
    Date: 2010 Aug 26, 06:06 -0700

    Frank Reed notes of Sky & Telescope, "Some of the older publications do clearly have style advice for their authors." however they are not always so careful when discussing physical quantities. A number of years ago an article appeared describing Roger Angel's rotating glass furnace at the University of Arizona used to cast large parabolic mirror blanks. Although I don't recall the numbers exactly, a statement was made something like "the temperature of the oven will be more than doubled from 900F to 1900F". As I happened to be teaching a course in undergraduate physics at the time I could not, in good conscience, let such an affront to popular scientific literacy pass unchallenged so wrote in pointing out that it was really only meaningful to talk about temperature doubling with reference to the Kelvin scale. In the statement above, it didn't. The author/editor did take the trouble to write back but only to say that he thought that his meaning was clear - it's enough to make the crystal spheres groan!

    Robin Stuart
    ----------------------------------------------------------------
    NavList message boards and member settings: www.fer3.com/NavList
    Members may optionally receive posts by email.
    To cancel email delivery, send a message to NoMail[at]fer3.com
    ----------------------------------------------------------------

       
    Reply
    Browse Files

    Drop Files

    NavList

    What is NavList?

    Join NavList

    Name:
    (please, no nicknames or handles)
    Email:
    Do you want to receive all group messages by email?
    Yes No

    You can also join by posting. Your first on-topic post automatically makes you a member.

    Posting Code

    Enter the email address associated with your NavList messages. Your posting code will be emailed to you immediately.
    Email:

    Email Settings

    Posting Code:

    Custom Index

    Subject:
    Author:
    Start date: (yyyymm dd)
    End date: (yyyymm dd)

    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site
    Visit this site