Kupar 13,233 Posted Monday at 09:03 PM Share Posted Monday at 09:03 PM From yesterday's Guardian newspaper kids quiz. 2 2 Link to post
wivace6455 26 Posted Monday at 09:26 PM Share Posted Monday at 09:26 PM Looks like we need to do some research! If someone designs an experiment I'm sure a lot of us would be happy to participate! 1 Link to post
wettingman 539 Posted Tuesday at 12:26 AM Share Posted Tuesday at 12:26 AM I would think it can vary significantly. It would depend on the size of a person's urethra and the actual pee hole, determining how fast it can cone out. Also how badly the person needs to pee. If their bladder is full the pee would be pushed out harder. If they are too full and the bladder is seriously stretched, it may not be able to push as hard. You need to be in that sweet spot. On one If my more memorable pees I must have hit that. I had to go pretty badly . When I let go I experienced a unusual sensation. I could feel my pee hole stretch as my pee gushed out at high velocity and pressure. Not at the time but I later recorded my urethra opening , it does not open very far . It has been shown that females pee faster than males because of their short ,straight down urethra. A study of the matter could be interesting but I don't know how you can calculate the actual speed of urine flow. I do member some board college students measuring the speed of ketchup flowing from the bottle.. So maybe.... Who wants to volunteer to be a test subject. 1 1 Link to post
Pinguy94 95 Posted Tuesday at 01:26 AM Share Posted Tuesday at 01:26 AM 58 minutes ago, wettingman said: I would think it can vary significantly. It would depend on the size of a person's urethra and the actual pee hole, determining how fast it can cone out. Also how badly the person needs to pee. If their bladder is full the pee would be pushed out harder. If they are too full and the bladder is seriously stretched, it may not be able to push as hard. You need to be in that sweet spot. On one If my more memorable pees I must have hit that. I had to go pretty badly . When I let go I experienced a unusual sensation. I could feel my pee hole stretch as my pee gushed out at high velocity and pressure. Not at the time but I later recorded my urethra opening , it does not open very far . It has been shown that females pee faster than males because of their short ,straight down urethra. A study of the matter could be interesting but I don't know how you can calculate the actual speed of urine flow. I do member some board college students measuring the speed of ketchup flowing from the bottle.. So maybe.... Who wants to volunteer to be a test subject. I have had similar where my urethra felt really stretched and a few of those times I had to go horribly bad, and I have recorded mine during a desperate pee and it can open fairly wide when needed 1 1 Link to post
wivace6455 26 Posted Tuesday at 03:00 AM Share Posted Tuesday at 03:00 AM Someone should check my math, but I think if you divide the flow rate in ml/second by the area of the urethra, that should be the speed of the flow right? If my math is right there then from some quick googling of averages I think a typical flow is more like 1.2 km per hour 1 Link to post
Kupar 13,233 Posted Tuesday at 06:50 AM Author Share Posted Tuesday at 06:50 AM 3 hours ago, wivace6455 said: Someone should check my math, but I think if you divide the flow rate in ml/second by the area of the urethra, that should be the speed of the flow right? If my math is right there then from some quick googling of averages I think a typical flow is more like 1.2 km per hour I don't know what averages you're using, but certainly volume flow rate divided by urethra cross sectional area would give you a velocity and that's probably the most straightforward way for averages. I don't fancy trying to measure my own urethra cross sectional area, and while you could try to measure the pee stream area with a close up photo I reckon the error in measurement would be big. You could make a high speed video when the pee begins, with the subject standing or squatting close to a piece of paper with a scale marked on it. Or use a radar speed gun. Apparently there used to be one made by Mattel designed for use with Hotwheels toy cars https://www.eetimes.com/mattel-makes-a-real-radar-gun-on-the-cheap/ 2 2 Link to post
nylon crossdresser 556 Posted Tuesday at 08:58 AM Share Posted Tuesday at 08:58 AM 8 hours ago, wettingman said: On one If my more memorable pees I must have hit that. I had to go pretty badly . When I let go I experienced a unusual sensation. I could feel my pee hole stretch as my pee gushed out at high velocity and pressure. Not at the time but I later recorded my urethra opening , it does not open very far . I never really gave this much thought until I videoed myself peeing hands-free. I wore tights to make the pee jet upwards and was amazed at how much my pee hole opened as I emptied my bladder. This paved the way to some fun experimentation and I found that squatting allows for a thicker, slower flow and standing gives a thinner more powerful flow of up to 5 feet. Either way, hands-free peeing is great. 1 2 Link to post
MidoriLemonade85 2,245 Posted Tuesday at 12:44 PM Share Posted Tuesday at 12:44 PM I have found that being desperate and squatting makes my pee squirt out faster, for sure. And hiss with the speed of it. My estimate would be 10kph. 2 2 Link to post
glad1 2,800 Posted Tuesday at 02:11 PM Share Posted Tuesday at 02:11 PM 7 hours ago, Kupar said: You could make a high speed video when the pee begins, with the subject standing or squatting close to a piece of paper with a scale marked on it. Or use a radar speed gun. Apparently there used to be one made by Mattel designed for use with Hotwheels toy cars https://www.eetimes.com/mattel-makes-a-real-radar-gun-on-the-cheap/ Great idea, Kupar! Perhaps we could all test our streams with a radar gun. Maybe even have a contest to see who's the fastest? 1 hour ago, MidoriLemonade85 said: I have found that being desperate and squatting makes my pee squirt out faster, for sure. And hiss with the speed of it. My estimate would be 10kph. I can just picture signs posted in front of front of toilets and urinals, "sPEEd LIMIT 10" 🤣 1 2 Link to post
wivace6455 26 Posted Tuesday at 02:26 PM Share Posted Tuesday at 02:26 PM 7 hours ago, Kupar said: You could make a high speed video when the pee begins, with the subject standing or squatting close to a piece of paper with a scale marked on it. Or use a radar speed gun. Apparently there used to be one made by Mattel designed for use with Hotwheels toy cars https://www.eetimes.com/mattel-makes-a-real-radar-gun-on-the-cheap/ Accuracy aside, radar gun definitely sounds like more fun! 1 1 Link to post
hold_on 129 Posted Tuesday at 03:07 PM Share Posted Tuesday at 03:07 PM All I know is that getting older, it's been difficult for the pee to come out as fast as it did when I was younger. But I find if I really make an effort to relax my muscles my bladder will push it out faster. 1 1 Link to post
Pinguy94 95 Posted Tuesday at 03:47 PM Share Posted Tuesday at 03:47 PM 37 minutes ago, hold_on said: All I know is that getting older, it's been difficult for the pee to come out as fast as it did when I was younger. But I find if I really make an effort to relax my muscles my bladder will push it out faster. I have to agree with this forsure, I do a lot more dribbling or starting and stopping these days when I was younger it was full pressure most often 2 Link to post
oliver2 4,295 Posted Wednesday at 07:24 AM Share Posted Wednesday at 07:24 AM Unless I’m completely misremembering high school physics, you can get a very good measurement of speed by pissing in a particular angle then measuring how far it goes (before gravity pulls your stream to the ground) 1 Link to post
gldenwetgoose 21,107 Posted Wednesday at 07:32 AM Share Posted Wednesday at 07:32 AM (edited) 8 minutes ago, oliver2 said: Unless I’m completely misremembering high school physics, you can get a very good measurement of speed by pissing in a particular angle then measuring how far it goes (before gravity pulls your stream to the ground) That's a bloody good point... trajectory I think is possibly the word you're thinking of. Edit - Of course if you're pissing in the wind you could get an entirely different result. Or the people stood near you could too. Edited Wednesday at 07:34 AM by gldenwetgoose 2 Link to post
oliver2 4,295 Posted Wednesday at 07:36 AM Share Posted Wednesday at 07:36 AM 3 minutes ago, gldenwetgoose said: Or the people stood near you could too. Well, they might like it! It’s not likely, but it’s not impossible… 1 Link to post
Turkis viking 23 Posted Wednesday at 02:29 PM Share Posted Wednesday at 02:29 PM Hmm easy, pee in a measuring cup or a container. Take the time on how long time it took to pee. Then measure on a kitchen weight. Use metric values where 1kg is the same as 1 liter for pee ( water). Then you get speed in ml/ sec 1 1 Link to post
Kupar 13,233 Posted Wednesday at 07:22 PM Author Share Posted Wednesday at 07:22 PM 11 hours ago, oliver2 said: Unless I’m completely misremembering high school physics, you can get a very good measurement of speed by pissing in a particular angle then measuring how far it goes (before gravity pulls your stream to the ground) R = range. V0 is initial velocity. 1 2 Link to post
wettingman 539 Posted Wednesday at 08:18 PM Share Posted Wednesday at 08:18 PM 5 hours ago, Turkis viking said: Hmm easy, pee in a measuring cup or a container. Take the time on how long time it took to pee. Then measure on a kitchen weight. Use metric values where 1kg is the same as 1 liter for pee ( water). Then you get speed in ml/ sec This makes sense. Wouldn't the distance from your pee hole to the container matter . I am horrible at math Link to post
DoctorDoctor 1,297 Posted Wednesday at 09:52 PM Share Posted Wednesday at 09:52 PM There are so many good scientific ways posted here! Flow rate, radar, equations about trajectory and angles. I remeber seeing a news article several years ago about a urinal installed in pubs/bars with sensors that measured both volume and speed (intensity?) of the piss stream. (I believe it was from Japan) I liked the electronic "leader board" that listed the recent top performers' statistics. Maybe they also need a toilet version for women. There is always the old, subjective way of just filming a good piss and the distance the stream travels and having others comment on it! 😉 1 Link to post
Kupar 13,233 Posted Thursday at 05:38 AM Author Share Posted Thursday at 05:38 AM (edited) 15 hours ago, Turkis viking said: Hmm easy, pee in a measuring cup or a container. Take the time on how long time it took to pee. Then measure on a kitchen weight. Use metric values where 1kg is the same as 1 liter for pee ( water). Then you get speed in ml/ sec That will give you volume flow rate (ml/s) rather than speed (mph or m/s or km/h). Water comes out of a pressure washer at a faster speed than out of a hose pipe, but more water per second comes out of the hose. Edited Thursday at 05:38 AM by Kupar 4 Link to post
JDAMS79 77 Posted Thursday at 03:04 PM Share Posted Thursday at 03:04 PM On 9/30/2024 at 8:26 PM, wettingman said: I would think it can vary significantly. It would depend on the size of a person's urethra and the actual pee hole, determining how fast it can cone out. Also how badly the person needs to pee. If their bladder is full the pee would be pushed out harder. If they are too full and the bladder is seriously stretched, it may not be able to push as hard. You need to be in that sweet spot. On one If my more memorable pees I must have hit that. I had to go pretty badly . When I let go I experienced a unusual sensation. I could feel my pee hole stretch as my pee gushed out at high velocity and pressure. Not at the time but I later recorded my urethra opening , it does not open very far . It has been shown that females pee faster than males because of their short ,straight down urethra. A study of the matter could be interesting but I don't know how you can calculate the actual speed of urine flow. I do member some board college students measuring the speed of ketchup flowing from the bottle.. So maybe.... Who wants to volunteer to be a test subject. This shows men have a faster flow rate til age 45 but the below chart from a study of women shows before age 50 the range in flow rate is huge with some pissing as much as 35 m/l per second. I guess those are the ones in the videos we see filling huge bowls 🤪 Age group Average flow rate (mL/sec) 14–45 years 21 mL/sec for males, 18 mL/sec for females 46–65 years 12 mL/sec for males, 18 mL/sec for females 66–80 years 9 mL/sec for males, 18 mL/sec for females 1 Link to post
wettingman 539 Posted Thursday at 04:32 PM Share Posted Thursday at 04:32 PM (edited) Yes the dreaded enlarged prostate effect, which starts almost unnoticed in our mid forties. I am in that group at 72 and have had multiple procedures to mitigate my enlarged prostate. It really sucks. With females of course not only do they don't have a prostate . Their urethra is much shorter and just goes straight down . I have read this makes them able to pee faster. Edited Thursday at 10:03 PM by wettingman 1 Link to post
IdoPiddleSome2 10 Posted yesterday at 12:33 AM Share Posted yesterday at 12:33 AM Water has a finite terminal velocity (in case we didn't already have enough variables to juggle here) 🙂. Then, sexual excitement (in response to Piƒsing) tends to change both internal ballistics & muzzle-velocity. My Peehole has lips with their own erectile schedule; they pout & squeexe my stream (to my delight & apparently theirs as well) this excites them to squeeze it more. So I think actual speed-detection tech would be the best way to get answers. In studies of small-arms ballistics, there are ways of measuring bullet-speed at the muzzle AND downrange. But this is tech for measuring speeds as high as Mach 3+. I don't know if Pee would even register. 1 Link to post
wivace6455 26 Posted yesterday at 03:14 AM Share Posted yesterday at 03:14 AM Anyone have one of those speed limit signs that tell you your speed nearby they could run and pee toward? It’s for science! Link to post
Carb0nBased 622 Posted yesterday at 05:35 AM Share Posted yesterday at 05:35 AM That's such a boy question to ask haha. Yes, many of the adult women and men on this site would still be interested, but we're a rather unusual sample of people. I also wonder what the purpose of that German study was. Possibly someone like Macsen grew up and wanted to set the record straight, but how did he manage to convince whoever he was working for to approve the study? Also, I question the intelligence of anyone who would answer A or B for the star question! The lights of two adjacent windows in a city at night are much more than two arm lengths apart, and yet you can actually see them drift by as you ride in the car. The stars don't, so it doesn't take much thought to realize that they must be farther apart than the size of anything you see on the horizon. Link to post
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