The Naked Scientists

The Naked Scientists Forum

Author Topic: What do some smells linger?  (Read 3041 times)

Offline thedoc

  • Forum Admin
  • Administrator
  • Sr. Member
  • *****
  • Posts: 511
  • Thanked: 11 times
    • View Profile
What do some smells linger?
« on: 01/10/2013 21:30:01 »
Andrew B. Roberts  asked the Naked Scientists:
   
How does odour work? For example, pizza in car / lingering smells

Andrew

What do you think?
« Last Edit: 01/10/2013 21:30:01 by _system »


 

Offline chiralSPO

  • Global Moderator
  • Neilep Level Member
  • *****
  • Posts: 1870
  • Thanked: 143 times
    • View Profile
Re: What do some smells linger?
« Reply #1 on: 02/10/2013 23:58:25 »
Odors are typically produced by one or more chemical compound. These compounds must be volatile to get into the air, and they must bind to and activate receptors in your nose. If the compound is too volatile, it all goes into the air too quickly, and dissipates. If the compound is only very slightly volatile, then it is released very slowly over a long period. If the compound happens to smell very strongly (only a small amount in the air is necessary for it to be smelled), and is not volatile then there will be a lingering smell.
 

The Naked Scientists Forum

Re: What do some smells linger?
« Reply #1 on: 02/10/2013 23:58:25 »

 

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