Results 1 to 3 of 3

Thread: Crookes Radiometer at Home Depot

  1. #1 Crookes Radiometer at Home Depot 
    New Member
    Join Date
    Aug 2012
    I've never been a particularly star student when it comes to science, but I do have a curiosity as to what makes things work. So, this is bugging me. I was at Home Depot yesterday and there by the door were two young ladies performing a demonstration for some "breakthrough" in window tinting technology (finally, I've been waiting for years). I didn't stop and talk to them, but I'm pretty sure I got how the demonstration went: a heat-lamp was shined on a Crookes Radiometer which spun like crazy. Then, they put the tinting between the lamp and radiometer to show the dramatic effect it had on slowing the spin.
    Now, I always thought Crookes Radiometers were neat, but I'm not sure this demonstration really proves the effectiveness of the tinting. Even if it does, wouldn't a digital thermometer and perhaps some sort of EM meter be a much better indication? I know that would be less visually striking, though. I know Crookes Radiometers spin in relation to the EM radiation they are receiving, but does this truly prove anything about their tinting in comparison with others?

    Reply With Quote  


  3. #2  
    New Member
    Join Date
    Aug 2012
    I ended up at Home Depot again on Saturday. It was a 3M display. Can anyone clarify this for me?

    Reply With Quote  

  4. #3  
    Join Date
    Apr 2007
    Obviously, if they are only testing one brand, it would not tell you anything about another brand's performance. The heat lamp is radiating mostly in the infrared range, and plain untinted glass will block infrared pretty well. So, I don't think the display is telling you anything useful about the tint.
    Reply With Quote  

Similar Threads

  1. Obsidian at home?
    By Pomegranate Cameron in forum Earth Sciences
    Replies: 14
    Last Post: December 7th, 2011, 05:00 PM
  2. home brewing
    By biohazard87 in forum General Discussion
    Replies: 0
    Last Post: September 24th, 2010, 10:01 PM
  3. home experiments
    By wizardad in forum Chemistry
    Replies: 6
    Last Post: June 17th, 2009, 12:53 PM
  4. i'm going home
    By 787 in forum General Discussion
    Replies: 7
    Last Post: April 8th, 2008, 06:02 AM
  5. i have found my home
    By all4schwa in forum Introductions
    Replies: 3
    Last Post: February 15th, 2006, 03:38 PM
Tags for this Thread

View Tag Cloud

Posting Permissions
  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts