home
homerder=

 New Website  
CHaOS is in the process of moving to a new website, so this website may no longer be up to date. Click here to go to our new site.

 Menu  
Home
Events
To try at Home
Contact


Demonstrators:
Discussion (8/0)
Experiments (118/0) »
General (55/0)
Events (20/0)
Website (10/0)
Ideas (222/0) »
Risk Assesment (118/0) »


New Volunteers
Links
Calendar


Stats

 Search  

 User Functions  
Username:

Password:

Don't have an account yet? Sign up as a New User

 Who's Online  
Guest Users: 5

 What's New  
STORIES
No new stories

COMMENTS last 48 hrs
No new comments

LINKS last 2 wks
No recent new links

 Events  
There are no upcoming events

 Older Stories  
Friday 13/03/09
  • Psychadelic milk (0)
  • Cornflour monster RA (0)
  • Cornflour monster (0)
  • Anti-bubbles RA (0)
  • Anti-bubbles (0)

  • Monday 02/03/09
  • Cells (0)
  • Near IR Webcam RA (0)

  • Wednesday 04/02/09
  • Plants R.A. (0)
  • Plants (1)
  • Cells R.A. (0)


  •  Why OHP pens are different colours in reflection   
    10/11/03 @ 17:23 GMTDave  
    Physics IdeasIf you look at a blue OHP pen at a small angle it looks reddy purple, because it gets rid of the red by reflection...

    You could set up an OHP slide with pens on it and light it right. It should go well with a colour mixing demo..

    Thin gold films look red in reflection and blue in transmission as well



     
     

     What's Related  
  • More by Dave
  • More from Physics Ideas

  •  Story Options  
  • Mail Story to a Friend
  • Printable Story Format


  • Why OHP pens are different colours in reflection | 0 comments | Create New Account
    The following comments are owned by whomever posted them. This site is not responsible for what they say.
    No user comments.