Naked Science Forum

Life Sciences => Physiology & Medicine => Topic started by: neilep on 13/05/2007 21:55:03

Title: How Fast Is a Flatulent Fart ?
Post by: neilep on 13/05/2007 21:55:03
Ok...we sneeze at something like a billion miles per hour but how fast is the average fart ?

...and it doen't take long to filter through our garments either does it ?


So, please don't turn your nose up at this...I really want to nose...erhhmm..I mean Know !!
Title: How Fast Is a Flatulent Fart ?
Post by: DoctorBeaver on 14/05/2007 11:08:10
I would imagine it depends on internal pressure, the tightness of the sphincter, and whether there are any "obstructions" in the lower bowel  [xx(]
Title: How Fast Is a Flatulent Fart ?
Post by: Bored chemist on 14/05/2007 13:55:22
The volume of the fart divided by the product of the area of the hole and the duration.
Title: How Fast Is a Flatulent Fart ?
Post by: DoctorBeaver on 14/05/2007 15:56:21
The volume of the fart divided by the product of the area of the hole and the duration.

Duration or dilation?  [???]
Title: How Fast Is a Flatulent Fart ?
Post by: guest6180 on 14/05/2007 16:13:00
Perhaps there is a calculation there somewhere involving the pitch of the sound made also?!!!
Title: How Fast Is a Flatulent Fart ?
Post by: neilep on 14/05/2007 21:07:40
I would imagine it depends on internal pressure, the tightness of the sphincter, and whether there are any "obstructions" in the lower bowel  [xx(]

I agree....I expect the same variables are applicable to stipulating the speed of a sneeze too !
Title: How Fast Is a Flatulent Fart ?
Post by: neilep on 14/05/2007 21:09:06
The volume of the fart divided by the product of the area of the hole and the duration.

Presumably it is the area of the hole whilst during the actual act of guffing yes ?
Title: How Fast Is a Flatulent Fart ?
Post by: neilep on 14/05/2007 21:11:15
I would be happy to use one of these if some one wants to hold it !


(https://www.thenakedscientists.com/forum/proxy.php?request=http%3A%2F%2Fwww.inspeed.com%2Fanemometers%2Fimages%2Flarge%2Fhand-held-windmeter.jpg&hash=4a421a84853274eaddcbe1c7d6065ab0)

Title: How Fast Is a Flatulent Fart ?
Post by: Bored chemist on 14/05/2007 21:49:42
"Presumably it is the area of the hole whilst during the actual act of guffing yes ?"
Yes, though I have to say I never thought that I'd be putting my very expensive university education to problems of this importance.
Title: How Fast Is a Flatulent Fart ?
Post by: DoctorBeaver on 15/05/2007 10:12:40
Definition of "flatulence":-

What sufferers from chronic wind get taken to hospital in!   [:D]