The Naked Scientists

The Naked Scientists Forum

Author Topic: What colour is dust?  (Read 14603 times)

Offline DoctorBeaver

  • Naked Science Forum GOD!
  • *******
  • Posts: 12656
  • Thanked: 3 times
  • A stitch in time would have confused Einstein.
    • View Profile
What colour is dust?
« on: 18/04/2007 17:30:06 »
Dust looks dark on light-coloured surfaces but light on dark-coloured surfaces. So what colour is it?  ???


 

Offline Bored chemist

  • Neilep Level Member
  • ******
  • Posts: 8665
  • Thanked: 42 times
    • View Profile
What colour is dust?
« Reply #1 on: 18/04/2007 19:38:34 »
Both. There's light coloured bits that show up on dark surfaces and dark coloured bits that show up on light surfaces. My PC's black keyboard is dusty- the white stuff is showing up. If I take a white cloth and wipe the keyboard I see dark coloured stuff on the cloth. The dark dust must have been there all along, but I couldn't see it.
 

Offline Batroost

  • Sr. Member
  • ****
  • Posts: 276
  • There's no such thing as a dirty atom!
    • View Profile
What colour is dust?
« Reply #2 on: 18/04/2007 20:23:36 »
Or... it's grey, so will look pale on a dark surface and dark on a light one?
 

paul.fr

  • Guest
What colour is dust?
« Reply #3 on: 18/04/2007 20:27:09 »
Would it not depend on the type of dust?
 

lyner

  • Guest
What colour is dust?
« Reply #4 on: 18/04/2007 23:31:36 »
Most household dust is cast-off skin cells, so I heard. A pile of dust will look greyish but, if you add water we are into the same scenario as the 'damp cloth' thread which is running at the same time as this one.
If the dust comes from the Sahara, it makes my car look red - particularly after light rain.

Anyway- as Quentin Crisp  once said - "After two years, the dust doesn't get any worse."
Just leave it there! Try not to look at it.
 

Offline neilep

  • Withdrawnmist
  • Naked Science Forum GOD!
  • *******
  • Posts: 20602
  • Thanked: 8 times
    • View Profile
What colour is dust?
« Reply #5 on: 19/04/2007 01:47:16 »
Enjoy Dust !...especially the dust under printers !

Did you ever give consideration to the Under-printer-Dust-Bunnies ?

Under-Printer-Dust-Bunnies are playful little creatures....they drink lemonade and eat marshmallows !!

If you put your ear close enough you can hear them doing ' bottom burps' which are sweet and fragrant !! ...leave some sherbet out for them and they will love you forever !!
 

Offline Karen W.

  • Moderator
  • Naked Science Forum GOD!
  • *****
  • Posts: 31653
  • Thanked: 5 times
  • "come fly with me"
    • View Profile
What colour is dust?
« Reply #6 on: 19/04/2007 04:59:05 »
LOL..
 

Offline DoctorBeaver

  • Naked Science Forum GOD!
  • *******
  • Posts: 12656
  • Thanked: 3 times
  • A stitch in time would have confused Einstein.
    • View Profile
What colour is dust?
« Reply #7 on: 20/04/2007 08:33:17 »
Enjoy Dust !...especially the dust under printers !

Did you ever give consideration to the Under-printer-Dust-Bunnies ?

Under-Printer-Dust-Bunnies are playful little creatures....they drink lemonade and eat marshmallows !!

If you put your ear close enough you can hear them doing ' bottom burps' which are sweet and fragrant !! ...leave some sherbet out for them and they will love you forever !!

Quite, quite mad
 

Offline neilep

  • Withdrawnmist
  • Naked Science Forum GOD!
  • *******
  • Posts: 20602
  • Thanked: 8 times
    • View Profile
What colour is dust?
« Reply #8 on: 20/04/2007 14:59:02 »
Enjoy Dust !...especially the dust under printers !

Did you ever give consideration to the Under-printer-Dust-Bunnies ?

Under-Printer-Dust-Bunnies are playful little creatures....they drink lemonade and eat marshmallows !!

If you put your ear close enough you can hear them doing ' bottom burps' which are sweet and fragrant !! ...leave some sherbet out for them and they will love you forever !!

Quite, quite mad

I know !!..lemonade and marshmallows are quite a concoction !!
 

Offline DoctorBeaver

  • Naked Science Forum GOD!
  • *******
  • Posts: 12656
  • Thanked: 3 times
  • A stitch in time would have confused Einstein.
    • View Profile
What colour is dust?
« Reply #9 on: 20/04/2007 17:04:42 »
Enjoy Dust !...especially the dust under printers !

Did you ever give consideration to the Under-printer-Dust-Bunnies ?

Under-Printer-Dust-Bunnies are playful little creatures....they drink lemonade and eat marshmallows !!

If you put your ear close enough you can hear them doing ' bottom burps' which are sweet and fragrant !! ...leave some sherbet out for them and they will love you forever !!

Quite, quite mad

I know !!..lemonade and marshmallows are quite a concoction !!

Nice if curried
 

Offline moonfire

  • Neilep Level Member
  • ******
  • Posts: 4597
  • Can't stand the heat, step away from the fire!
    • View Profile
    • http://www.m2global.com/stormdiamonds
What colour is dust?
« Reply #10 on: 20/04/2007 19:22:07 »
LOL
 

Offline RD

  • Neilep Level Member
  • ******
  • Posts: 8130
  • Thanked: 53 times
    • View Profile
What colour is dust?
« Reply #11 on: 25/04/2007 16:57:38 »
Anyway- as Quentin Crisp  once said - "After two years, the dust doesn't get any worse."

Quote
He (Quentin Crisp) moved to New York in the early 1980's and lived, as ever, alone in a one room apartment which he famously never cleaned.
 "After four years," he quipped, "you don't notice the dust."
http://news.bbc.co.uk/1/hi/uk/211644.stm
 

Offline DoctorBeaver

  • Naked Science Forum GOD!
  • *******
  • Posts: 12656
  • Thanked: 3 times
  • A stitch in time would have confused Einstein.
    • View Profile
What colour is dust?
« Reply #12 on: 26/04/2007 08:25:51 »
Ah, but if he had travelled at relativistic speeds (in a Yellow Cab through South Bronx maybe?) 2 years may have passed for him but it was 4 years Earth time.  :D
 

lyner

  • Guest
What colour is dust?
« Reply #13 on: 27/04/2007 20:09:37 »
Quote
"After four years," he quipped, "you don't notice the dust."
I guess I'm just impatient!.
And I love the journalistic "quipped"!
 

The Naked Scientists Forum

What colour is dust?
« Reply #13 on: 27/04/2007 20:09:37 »

 

SMF 2.0.10 | SMF © 2015, Simple Machines
SMFAds for Free Forums
 
Login
Login with username, password and session length