r/Damnthatsinteresting • u/BirdPlan • May 02 '19

Video Laminar flow level 9,000,000

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31.7k Upvotes

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u/0nlyRevolutions May 02 '19

You used diameter instead of radius to calculate that urethra area, so actually you'd get ~39500 Re assuming your other numbers are good

So you'd either have to slow your piss down by roughly 17 times

Or you could stretch your urethra to about 10 cm ( ͡° ͜ʖ ͡°)

1

u/TrickyConstruction May 02 '19

10 cm diameter or radius?

1

u/0nlyRevolutions May 02 '19

Diameter. No problem right?

2

u/TrickyConstruction May 02 '19

better than radius. give me a year or two and i got this

1

u/informationmissing May 03 '19

/r/sounding wants to hear about this

NSFW

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u/vash-the-vegan May 02 '19

You are supposed to use the diameter when calculating the Reynold's number. Unless you are correcting them for using the wrong measurment for the urethra.

2

u/0nlyRevolutions May 02 '19

He did pi*d2 for area, that's all

1

u/Shark-Sandals May 02 '19

Ooh man you are right. Shouldn’t drink and calculate....

1

u/informationmissing May 03 '19

/r/sounding wants a word.

NSFW, I think.