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: RMS Carpathia sextant for re-auction.
    From: Frank Reed
    Date: 2016 Apr 20, 15:44 -0700

    David Pike, you wrote:
    " I suppose there’s a moral here for Google researchers. "

    The moral applies equally well to traditional sources of information: you may be looking at a stock photo!

    So how can you tell? On the modern Internet, there are a number of tricks you can use. If you browse the web using Google Chrome, you can right-click (or option-click on a Mac) on the image and select "Search Google for image". Those clever little algorithms will then dig through the entire vast database of images that the google-bots have visited and find matches in various sizes and formats as well as near-matches and even "similar" images (similarity from the point of view of a piece of software, which can often lead to fascinating and weird results). If you try this procedure on the image from the article at titanicnewschannel.com posted in 2012, you will discover that the photo used there is apparently one that is widely used on the Internet. In fact, as is so often the case, it appears to originate in a Wikipedia article. I didn't try this procedure on the article from the new auction. Maybe that represents the actual RMS Carpathia sextant or maybe it's yet another stock sextant image.

    By the way, if you don't use Google Chrome for your browser, you can still use the Google image search service by dragging and dropping into the normal image search on Google's web page, or you may be able to find a plugin or add-on --here's one for Firefox.

    Frank Reed

       
    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