# Infra-red fart.

**URL:** <https://boards.straightdope.com/t/infra-red-fart/383300>\
**Category:** Miscellaneous and Personal Stuff I Must Share\
**Created:** [December 8, 2006, 2:44am UTC](https://boards.straightdope.com/t/infra-red-fart/383300 "2006-12-08T02:44:17Z")\
**Posts on this page:** 17\
**Page:** 1

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**Author:** ![silenus](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/silenus/32/166_2.png) [@silenus](https://boards.straightdope.com/u/silenus)\
**Post date:** [December 8, 2006, 2:44am UTC](https://boards.straightdope.com/t/infra-red-fart/383300/1 "2006-12-08T02:44:17Z")

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If you’ve ever wondered just what the [dispersal pattern](http://www.uselessjunk.com/article_full.php?id=13250) of one of your farts is…  
All I can say is that the second blast must have been fueled by a lunchcart burrito!

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**Author:** ![Queen\_Tonya](https://avatars.discourse-cdn.com/v4/letter/q/4491bb/32.png) [@Queen\_Tonya](https://boards.straightdope.com/u/Queen_Tonya)\
**Post date:** [December 8, 2006, 3:04am UTC](https://boards.straightdope.com/t/infra-red-fart/383300/2 "2006-12-08T03:04:26Z")

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We were using this big expensive thermal camera at work the other day, looking for hot spots in a capacitor cabinet. Naturally we all took turns learning to use it, looking at each other and the lights and windows, etc.

Everyone talked about how neat it would be if we could sneak it out of work for a night, borrow it just to check for heat loss around the home and do appropriate repairs. Sure, I get that, but everyone looked at me like I was off my rocker when I mused that it’d be fascinating to hook up to a video feed and record yourself having sex to watch the thermal changes.

Well, it would!

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**Author:** ![Common\_Tater](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/common_tater/32/13846_2.png) [@Common\_Tater](https://boards.straightdope.com/u/Common_Tater)\
**Post date:** [December 8, 2006, 3:08am UTC](https://boards.straightdope.com/t/infra-red-fart/383300/3 "2006-12-08T03:08:19Z")

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I wanna party with you!

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**Author:** ![caveman](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/caveman/32/7242_2.png) [@caveman](https://boards.straightdope.com/u/caveman)\
**Post date:** [December 8, 2006, 3:20am UTC](https://boards.straightdope.com/t/infra-red-fart/383300/4 "2006-12-08T03:20:04Z")

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I’ve seen this clip before, and it seems fake to me. Generally, lighter=warmer, right? But the “fart” is **black**. It should be nearly body temperature. I think that a can of spray paint (or some other aerosol) was used, concealed on the far side of the ersatz wind-breaker. Aerosols tend to be cold upon release from their pressurized can, hence the dark hue of the cloud.

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**Author:** ![Rysdad](https://avatars.discourse-cdn.com/v4/letter/r/7cd45c/32.png) [@Rysdad](https://boards.straightdope.com/u/Rysdad)\
**Post date:** [December 8, 2006, 3:35am UTC](https://boards.straightdope.com/t/infra-red-fart/383300/5 "2006-12-08T03:35:31Z")

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[QUOTE=caveman]  
I’ve seen this clip before, and it seems fake to me. Generally, lighter=warmer, right? But the “fart” is **black**. It should be nearly body temperature. I think that a can of spray paint (or some other aerosol) was used, concealed on the far side of the ersatz wind-breaker. Aerosols tend to be cold upon release from their pressurized can, hence the dark hue of the cloud.  
[/QUOTE]

I thought the same thing. It’s a phony.

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**Author:** ![Cat\_Whisperer](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/cat_whisperer/32/4839_2.png) [@Cat\_Whisperer](https://boards.straightdope.com/u/Cat_Whisperer)\
**Post date:** [December 8, 2006, 4:11am UTC](https://boards.straightdope.com/t/infra-red-fart/383300/6 "2006-12-08T04:11:49Z")

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I don’t see anything in Snopes regarding this. Anybody got a good de-bunking (cause if not, I’d like to send it to everyone I know. 😃 )?

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**Author:** ![DrCube](https://avatars.discourse-cdn.com/v4/letter/d/a3d4f5/32.png) [@DrCube](https://boards.straightdope.com/u/DrCube)\
**Post date:** [December 8, 2006, 4:50am UTC](https://boards.straightdope.com/t/infra-red-fart/383300/7 "2006-12-08T04:50:39Z")

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[QUOTE=caveman]  
I’ve seen this clip before, and it seems fake to me. Generally, lighter=warmer, right? But the “fart” is **black**. It should be nearly body temperature. I think that a can of spray paint (or some other aerosol) was used, concealed on the far side of the ersatz wind-breaker. Aerosols tend to be cold upon release from their pressurized can, hence the dark hue of the cloud.  
[/QUOTE]

I haven’t seen the video, I’m on a dialup connection and don’t feel like waiting an hour or so for it to download. But I’ve worked on infrared sights before and, at least the ones I’ve worked on, can be switched from lighter=hotter to darker=hotter. But I would be suspicious if it looked like everything else was hot except the fart itself.

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**Author:** ![DooWahDiddy](https://avatars.discourse-cdn.com/v4/letter/d/e9bcb4/32.png) [@DooWahDiddy](https://boards.straightdope.com/u/DooWahDiddy)\
**Post date:** [December 8, 2006, 4:54am UTC](https://boards.straightdope.com/t/infra-red-fart/383300/8 "2006-12-08T04:54:01Z")

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Dude, this is _totally_ fake. He makes sure to hide his left hand because he’s obviously spraying something with it. And he’s wearing pants… there’s no way it would come out in a straight line like that.

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**Author:** ![Chez\_Guevara](https://avatars.discourse-cdn.com/v4/letter/c/aeb1de/32.png) [@Chez\_Guevara](https://boards.straightdope.com/u/Chez_Guevara)\
**Post date:** [December 8, 2006, 5:24am UTC](https://boards.straightdope.com/t/infra-red-fart/383300/9 "2006-12-08T05:24:53Z")

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Unless the blast blew a hole in his pants.

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**Author:** ![Chez\_Guevara](https://avatars.discourse-cdn.com/v4/letter/c/aeb1de/32.png) [@Chez\_Guevara](https://boards.straightdope.com/u/Chez_Guevara)\
**Post date:** [December 8, 2006, 5:27am UTC](https://boards.straightdope.com/t/infra-red-fart/383300/10 "2006-12-08T05:27:29Z")

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More seriously, fake fart or not, I can’t help but think the effect would have been more aesthetically pleasing if the guy had been facing the other way.

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**Author:** ![Tomcat](https://avatars.discourse-cdn.com/v4/letter/t/8e8cbc/32.png) [@Tomcat](https://boards.straightdope.com/u/Tomcat)\
**Post date:** [December 8, 2006, 8:35am UTC](https://boards.straightdope.com/t/infra-red-fart/383300/11 "2006-12-08T08:35:19Z")

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Fake. There is a guy who walks by just before, and his hand is light colored, his clothing dark. Thus, lighter is warmer. Also the guy who does it has dark fingertips - it looks just like an image I saw of someone who just smoked a cigarette - it closes the capillaries in the extremeties and they get cooler. And, expanding gas from aerosols is cold…thus the dark cloud. I’d even guess that it was just a can of air (like the ones used to clean keyboards) which would make it less noticable in a crowd. And it was MUCH darker than anything else, whereas a fart would be body temperature - just slightly warmer than the skin.

-Tcat

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**Author:** ![lieu](https://avatars.discourse-cdn.com/v4/letter/l/c2a13f/32.png) [@lieu](https://boards.straightdope.com/u/lieu)\
**Post date:** [December 8, 2006, 3:59pm UTC](https://boards.straightdope.com/t/infra-red-fart/383300/12 "2006-12-08T15:59:34Z")

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[QUOTE=Chez Guevara]  
… I can’t help but think the effect would have been more aesthetically pleasing if the guy had been facing the other way.  
[/QUOTE]  
But then he’d have to mess with Jim, da do da do…

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**Author:** ![Dung\_Beetle](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/dung_beetle/32/7945_2.png) [@Dung\_Beetle](https://boards.straightdope.com/u/Dung_Beetle)\
**Post date:** [December 8, 2006, 4:51pm UTC](https://boards.straightdope.com/t/infra-red-fart/383300/13 "2006-12-08T16:51:23Z")

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Darn! This would be an excellent sequential thread title if it had paired up with [Bean Soup…mmmmmm!](http://boards.straightdope.com/sdmb/showthread.php?t=399268)

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**Author:** ![Least\_Original\_User\_Name\_Ever](https://avatars.discourse-cdn.com/v4/letter/l/e480ec/32.png) [@Least\_Original\_User\_Name\_Ever](https://boards.straightdope.com/u/Least_Original_User_Name_Ever)\
**Post date:** [December 8, 2006, 6:45pm UTC](https://boards.straightdope.com/t/infra-red-fart/383300/14 "2006-12-08T18:45:05Z")

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The post previously was made by **Dung Beetle**. I find that funny in this thread.

The authority has OBVIOUSLY spoken.  
That is, unless **gonzomax** comes in here.

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**Author:** ![pravnik](https://avatars.discourse-cdn.com/v4/letter/p/8edcca/32.png) [@pravnik](https://boards.straightdope.com/u/pravnik)\
**Post date:** [December 8, 2006, 11:48pm UTC](https://boards.straightdope.com/t/infra-red-fart/383300/15 "2006-12-08T23:48:51Z")

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I didnn’t notice the color so much as the angle. It looks like it comes out parallel to the ground.

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**Author:** ![Sunspace](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/sunspace/32/1250_2.png) [@Sunspace](https://boards.straightdope.com/u/Sunspace)\
**Post date:** [December 8, 2006, 11:59pm UTC](https://boards.straightdope.com/t/infra-red-fart/383300/16 "2006-12-08T23:59:31Z")

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Well, it looks like we overloaded the server that video is on. We have to think of a name for this, kind of like being ‘Slashdotted’.

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**Author:** ![Larry\_Borgia](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/larry_borgia/32/156_2.png) [@Larry\_Borgia](https://boards.straightdope.com/u/Larry_Borgia)\
**Post date:** [December 9, 2006, 2:15am UTC](https://boards.straightdope.com/t/infra-red-fart/383300/17 "2006-12-09T02:15:03Z")

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[QUOTE=Queen Tonya]  
We were using this big expensive thermal camera at work the other day, looking for hot spots in a capacitor cabinet. Naturally we all took turns learning to use it, looking at each other and the lights and windows, etc.

Everyone talked about how neat it would be if we could sneak it out of work for a night, borrow it just to check for heat loss around the home and do appropriate repairs. Sure, I get that, but everyone looked at me like I was off my rocker when I mused that it’d be fascinating to hook up to a video feed and record yourself having sex to watch the thermal changes.

Well, it would!  
[/QUOTE]

I selflessly volunteer for this experiment.
