There is one in my room. My lease says its ok to smoke in my room. Won't it set it off? Or does it go off only with a large concentration of smoke?
It's too cold to go outside.
It's too cold to go outside.
if it goes off take the batteries out. Just remember to put them back in after
unless your fishbowling it shouldnt set it off
is it a fancy one that automatically calls help, or just one that operates with batteries?
smoke near a window with it cracked
there really is only one way to find out
unless your fishbowling it shouldnt set it off
is it a fancy one that automatically calls help, or just one that operates with batteries?
smoke near a window with it cracked
there really is only one way to find out
Wikipedia is your friend.
well, as to how they work.
On smoking, yea, try taking the batteries out...
well, as to how they work.
On smoking, yea, try taking the batteries out...
Last edited by Morpheus1229 (2008-03-28 21:53:35)
EE (hats
quit smoking
optics, smoky air transmits less light.
if it's tied to a sprinkler system, it might use a heat trigger to set off the water
if it's tied to a sprinkler system, it might use a heat trigger to set off the water
It's some cheap one that's hardwired to the apartment's electrical setup. Wikipedia says only fancier ones can detect carbon monoxide smoke. So I'm guessing I'm ok.Locoloki wrote:
if it goes off take the batteries out. Just remember to put them back in after
unless your fishbowling it shouldnt set it off
is it a fancy one that automatically calls help, or just one that operates with batteries?
smoke near a window with it cracked
there really is only one way to find out
smoke alarms from wat im seeing register like a breathalyzer(kinda). ok maybe not. it can tell when the air around it changes... cig smoke doesnt get extremely thick till after a while. unless u smoke right underneath it or could the room out u should be fine. once it accumulates on the sensor is when it goes off... compare cigarette smoke to fire smoke...
once i went on a holiday and the smoke detector in the living room of the hotel room i was in went off when i was cooking
Suicide is only option.
ALso@question: magic.
ALso@question: magic.
Last edited by AWSMFOX (2008-03-28 22:50:00)
Like this... there is a beam going thru it and when there are particles in the air. the beam relects and hits another sensor setting off the smoke detector
A projected beam photoelectric smoke detector can use a single light source and photosensor to monitor a very large area. Most such detectors use a near-IR LED or laser diode as a light source.
The projected beam detector arrangement shown below uses a separate emitter and detector. There are also combination detector/emitters that use a single passive reflector. The distance "L" in the diagram below can be up to 100 meters (several hundred feet) in one commercial system..
A projected beam photoelectric smoke detector can use a single light source and photosensor to monitor a very large area. Most such detectors use a near-IR LED or laser diode as a light source.
The projected beam detector arrangement shown below uses a separate emitter and detector. There are also combination detector/emitters that use a single passive reflector. The distance "L" in the diagram below can be up to 100 meters (several hundred feet) in one commercial system..
Last edited by Stun_Gun (2008-03-28 22:56:48)
AWSMFOX wrote:
magic
Some smoke detectors use a small radioactive sample (americium-241) and a detector. Normally the alpha particles ionise the air between the detector and the source (think of the principle of a geiger counter, but this time the argon/whatever you use gas is air), but when smoke is present the ions attach themselves to the smoke particles, meaning that the ions can no longer move about as freely. The voltage drops in the detector and this sets off the alarm.
Last edited by some_random_panda (2008-03-29 02:44:45)
thats how I learned it in physics class. Probs that method hasn't been used in centuries ...some_random_panda wrote:
Some smoke detectors use a small radioactive sample (americium-241) and a detector. Normally the alpha particles ionise the air between the detector and the source (think of the principle of a geiger counter, but this time the argon/whatever you use gas is air), but when smoke is present the ions attach themselves to the smoke particles, meaning that the ions can no longer move about as freely. The voltage drops in the detector and this sets off the alarm.
http://media.urbandictionary.com/image/ … -46422.jpg
once upon a midnight dreary, while i pron surfed, weak and weary, over many a strange and spurious site of ' hot xxx galore'. While i clicked my fav'rite bookmark, suddenly there came a warning, and my heart was filled with mourning, mourning for my dear amour, " 'Tis not possible!", i muttered, " give me back my free hardcore!"..... quoth the server, 404.
Yeah, thats how I learnt it too. I thought all smoke detectors contained a radioactive substance?max wrote:
thats how I learned it in physics class. Probs that method hasn't been used in centuries ...some_random_panda wrote:
Some smoke detectors use a small radioactive sample (americium-241) and a detector. Normally the alpha particles ionise the air between the detector and the source (think of the principle of a geiger counter, but this time the argon/whatever you use gas is air), but when smoke is present the ions attach themselves to the smoke particles, meaning that the ions can no longer move about as freely. The voltage drops in the detector and this sets off the alarm.
http://media.urbandictionary.com/image/ … -46422.jpg
AWSMFOX wrote:
AWSMFOX wrote:
magic
I herd magiks too.Mek-Izzle wrote:
AWSMFOX wrote:
AWSMFOX wrote:
magic
apparently not anymore_raab wrote:
Yeah, thats how I learnt it too. I thought all smoke detectors contained a radioactive substance?max wrote:
thats how I learned it in physics class. Probs that method hasn't been used in centuries ...some_random_panda wrote:
Some smoke detectors use a small radioactive sample (americium-241) and a detector. Normally the alpha particles ionise the air between the detector and the source (think of the principle of a geiger counter, but this time the argon/whatever you use gas is air), but when smoke is present the ions attach themselves to the smoke particles, meaning that the ions can no longer move about as freely. The voltage drops in the detector and this sets off the alarm.
http://media.urbandictionary.com/image/ … -46422.jpg
once upon a midnight dreary, while i pron surfed, weak and weary, over many a strange and spurious site of ' hot xxx galore'. While i clicked my fav'rite bookmark, suddenly there came a warning, and my heart was filled with mourning, mourning for my dear amour, " 'Tis not possible!", i muttered, " give me back my free hardcore!"..... quoth the server, 404.
And I thought that I could make a geiger counter out of my smoke detector.max wrote:
apparently not anymore_raab wrote:
Yeah, thats how I learnt it too. I thought all smoke detectors contained a radioactive substance?max wrote:
thats how I learned it in physics class. Probs that method hasn't been used in centuries ...
Our physics teacher keeps reminding us that if we took the alpha particle out of the smoke detector we could easily kill someone if they unfortunately ingested it.some_random_panda wrote:
And I thought that I could make a geiger counter out of my smoke detector.max wrote:
apparently not anymore_raab wrote:
Yeah, thats how I learnt it too. I thought all smoke detectors contained a radioactive substance?
I don't want to fail one of his tests
it's a combo of the radioactive stuff and a photo diode receiving a light source, which is blocked by the smoke, will trigger the alarm.
Ours hasmax wrote:
apparently not anymore_raab wrote:
Yeah, thats how I learnt it too. I thought all smoke detectors contained a radioactive substance?max wrote:
thats how I learned it in physics class. Probs that method hasn't been used in centuries ...
Three mentions of "carbon monoxide" in one sentence... Gotta be a new record.Wikipedia wrote:
A smoke detector cannot detect carbon monoxide to prevent carbon monoxide poisoning unless it has an integrated carbon monoxide detector.
The idea of any hi-fi system is to reproduce the source material as faithfully as possible, and to deliberately add distortion to everything you hear (due to amplifier deficiencies) because it sounds 'nice' is simply not high fidelity. If that is what you want to hear then there is no problem with that, but by adding so much additional material (by way of harmonics and intermodulation) you have a tailored sound system, not a hi-fi. - Rod Elliot, ESP
But knowing you it's from the 80's or somethingFreezer7Pro wrote:
Ours hasmax wrote:
apparently not anymore_raab wrote:
Yeah, thats how I learnt it too. I thought all smoke detectors contained a radioactive substance?
once upon a midnight dreary, while i pron surfed, weak and weary, over many a strange and spurious site of ' hot xxx galore'. While i clicked my fav'rite bookmark, suddenly there came a warning, and my heart was filled with mourning, mourning for my dear amour, " 'Tis not possible!", i muttered, " give me back my free hardcore!"..... quoth the server, 404.
Smoke detectors work through alpha particles. When this "line" of particles is disrupted an alarm sounds. These particles are extremely dangerous; I can't remember the name but someone was murdered by the fact that someone injected alpha particles into a glass of water - which he then drank. It sped up the the cancer process and he died very suddenly.
Hey, I guess Physics is useful for learning after all..
Hey, I guess Physics is useful for learning after all..
Only dangerous when inside you though, as they get absorbed by a few centimetres of air particles, and can't penetrate much.kylef wrote:
Smoke detectors work through alpha particles. When this "line" of particles is disrupted an alarm sounds. These particles are extremely dangerous; I can't remember the name but someone was murdered by the fact that someone injected alpha particles into a glass of water - which he then drank. It sped up the the cancer process and he died very suddenly.
Hey, I guess Physics is useful for learning after all..
if your aloud to smoke in the room then its not a smoke detector, its whats known as a heat detector (Y)