how does the smoke detecter in your house work?

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 11-20-2004
Tim_Lou's Avatar
Explaining

Join Date: Dec 2003
Location: Edison, NJ
Posts: 919
Tim_Lou will become famous soon enoughTim_Lou will become famous soon enough
Send a message via MSN to Tim_Lou
how does the smoke detecter in your house work?

believe it or not, smoke detecter uses a radioactive element to detect smoke. (dont mess with it, its radioactive)
it uses americium-241 which emits alpha particles that ionized the air and the air particles become positively charged, the charged particles go to the negatively charged plate and the electrons go to the positively charged plate inside the detecter, which creates a electric current.

when smokes come in, it disturbs and reduces the current by attaching itself to the ionized ions. the detecter records a reduction in electrical current thus an alert is sounded.
__________________
I have mistaken, apologized, and taken the consequences. My only regret, was for how I was bothered by the unchangable.
Reply With Quote
  #2 (permalink)  
Old 11-20-2004
Aki's Avatar
Aki Aki is offline
Explaining

Join Date: Dec 2003
Location: Canada
Posts: 530
Aki is on a distinguished road
RE: how does the smoke detecter in your house work?

and here's a little more info:
http://home.howstuffworks.com/smoke.htm
Reply With Quote
  #3 (permalink)  
Old 11-21-2004
lindagarrette's Avatar
Explaining

Join Date: Feb 2004
Location: Maryland Heights, MO
Posts: 865
lindagarrette is a jewel in the roughlindagarrette is a jewel in the roughlindagarrette is a jewel in the roughlindagarrette is a jewel in the rough
Send a message via ICQ to lindagarrette
RE: how does the smoke detecter in your house work?

That's a great web site! I've had it in my favorites list for years. Last week's had an article on how Viagra works that was very informative. I sent it to my ex-boyfriend.
__________________
If god existed then science would be meaningless
Reply With Quote
  #4 (permalink)  
Old 11-21-2004
Tormod's Avatar
Hypographer
Hypography Staff Member
Administrator
Senior Editor
Editor
Dev Team Member

Join Date: Feb 2002
Location: Oslo, Norway
Posts: 12,917
Blog Entries: 4
Tormod has a brilliant futureTormod has a brilliant futureTormod has a brilliant futureTormod has a brilliant futureTormod has a brilliant futureTormod has a brilliant futureTormod has a brilliant futureTormod has a brilliant futureTormod has a brilliant futureTormod has a brilliant future
RE: how does the smoke detecter in your house work?

Quote:
Originally posted by: lindagarrette
I sent it to my ex-boyfriend.
LOL!
__________________
Your Friendly Neighborhood Administrator

Want to sponsor Hypography? Buy a print in our Fall 2008 Benefit Sale

Found a problem? Report it in our Bug Tracker

Science is not only compatible with spirituality; it is a profound source of spirituality.
- Carl Sagan
Reply With Quote
  #5 (permalink)  
Old 11-21-2004
Tim_Lou's Avatar
Explaining

Join Date: Dec 2003
Location: Edison, NJ
Posts: 919
Tim_Lou will become famous soon enoughTim_Lou will become famous soon enough
Send a message via MSN to Tim_Lou
RE: how does the smoke detecter in your house work?

didnt mention Photoelectric Detectors... : \
__________________
I have mistaken, apologized, and taken the consequences. My only regret, was for how I was bothered by the unchangable.
Reply With Quote
  #6 (permalink)  
Old 11-22-2004
alexander's Avatar
Resident USSRian
Hypography Staff Member
Administrator
Gallery Curator
Dev Team Member
RE: how does the smoke detecter in your house work?

Quote:
Quote:

Originally posted by: lindagarrette
I sent it to my ex-boyfriend.

LOL!
Seconded.

I also think that howstuffworks a great website, whenever i dont know how something works, i go there first (BTW there is a very interesting thing in there on plasma TVs)

Back to topic:
It's definately interesting how smoke detector works (especially the fact that they usee radioactive materials), but i think the smoke detectors in my house also have brains and think; they always go off when it smells nice, and when food is almost ready and you are really frustrated and trying to get it just right. For example last week I was cooking dinner (BBQ pork chops, potatoes, green beans, polenta, stir fried shrimp with rice and vegies, and chicken cordon), so as you can imagine it smelled really good in the kitchen, and my smoke alarm went off, in a minute and a half of frustration of trying to get the battery out of the smoke detector food got a little burned (rice especially). And thats not an isolated incident, quiet many times when it smells really good, my smoke alarm goes off, and i have to scramble to turn it off again and wait till it doesnt smell as nice to put the battery back it, any suggestions of how to deal with it Tim, and taking the battery out for good is out, gotta have it on (landlord policy), and moving the detector doesnt help either, it smells nice everywhere unless i move it 2-3 rooms away, but what good is it there...?
__________________
And remember that great question that Pierre-Simon Laplace and Sir Isaac Newton, Andrei Markov and David Hilbert, Richard Feynman and Enrico Fermi, Albert Einstein and Edmund Halley did not come to ask throughout all of their dedication and work: "Who the hell is IMing me?"


This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License.
Reply With Quote
  #7 (permalink)  
Old 11-22-2004
Freethinker's Avatar
Resident Atheist

Join Date: Mar 2004
Posts: 3,057
Freethinker is a jewel in the roughFreethinker is a jewel in the roughFreethinker is a jewel in the roughFreethinker is a jewel in the rough
RE: how does the smoke detecter in your house work?

Does the article explain how well they work with dead batteries? That best describes mine! :-)
__________________
Thanks for helping to get god pounded into my head



Another succesful faith based initiative. Just like 9/11
Reply With Quote
  #8 (permalink)  
Old 11-22-2004
alexander's Avatar
Resident USSRian
Hypography Staff Member
Administrator
Gallery Curator
Dev Team Member
how does the smoke detecter in your house work?

That could be it! Hey freethinker how long did your smoke detectors batteries last?

Quote:
didnt mention Photoelectric Detectors... : \
Yeah it did (maybe not the article itself but there's info on photoelectric detectors there)!

here's the link: http://home.howstuffworks.com/smoke1.htm
__________________
And remember that great question that Pierre-Simon Laplace and Sir Isaac Newton, Andrei Markov and David Hilbert, Richard Feynman and Enrico Fermi, Albert Einstein and Edmund Halley did not come to ask throughout all of their dedication and work: "Who the hell is IMing me?"


This work is licensed under a Creative Commons Attribution-Noncommercial-Share Alike 3.0 License.
Reply With Quote
  #9 (permalink)  
Old 11-22-2004
Freethinker's Avatar
Resident Atheist

Join Date: Mar 2004
Posts: 3,057
Freethinker is a jewel in the roughFreethinker is a jewel in the roughFreethinker is a jewel in the roughFreethinker is a jewel in the rough
RE: how does the smoke detecter in your house work?

Quote:
Originally posted by: lindagarrette
That's a great web site! I've had it in my favorites list for years. Last week's had an article on how Viagra works that was very informative. I sent it to my ex-boyfriend.
Did it get a rise out of him? :-)
__________________
Thanks for helping to get god pounded into my head



Another succesful faith based initiative. Just like 9/11
Reply With Quote
  #10 (permalink)  
Old 11-22-2004
Freethinker's Avatar
Resident Atheist

Join Date: Mar 2004
Posts: 3,057
Freethinker is a jewel in the roughFreethinker is a jewel in the roughFreethinker is a jewel in the roughFreethinker is a jewel in the rough
how does the smoke detecter in your house work?

Quote:
Originally posted by: alexander
That could be it! Hey freethinker how long did your smoke detectors batteries last?
Don't know yet, they're still in there!
__________________
Thanks for helping to get god pounded into my head



Another succesful faith based initiative. Just like 9/11
Reply With Quote
Reply

Bookmarks


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

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

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
how does your carbon monoxide detector work? Tim_Lou Chemistry 2 03-14-2006

» Current Poll
Favorite James Bond?
Sean Connery - 63.64%
7 Votes
George Lazenby - 0%
0 Votes
David Niven - 9.09%
1 Vote
Roger Moore - 9.09%
1 Vote
Timothy Dalton - 9.09%
1 Vote
Pierce Brosnan - 0%
0 Votes
Daniel Craig - 9.09%
1 Vote
Hate 'em all - 0%
0 Votes
Who's James Bond? - 0%
0 Votes
Total Votes: 11
You may not vote on this poll.

All times are GMT -8. The time now is 12:19 PM.


Powered by vBulletin® Version 3.7.2
Copyright ©2000 - 2008, Jelsoft Enterprises Ltd.
SEO by vBSEO 3.2.0 ©2008, Crawlability, Inc.
Copyright © 2000-2008 Hypography
Part of the Hypography - Science for Everyone Network