The freezing point of human urine? Well, that depends

(Author’s Note: For more information on the freezing point of human urine, scroll to the bottom of this backblast)

The Shocker: A monthly matchup of you vs. the Concrete Beast. The Beast never changes. The question is, do you? One thing that definitely changed for the first Shocker of 2018 was the weather. Snowpocalypse was just hours from beginning, but the temperatures were already spring-loaded for maximum suck. It was so cold that human urine could freeze in just 45 minutes. Or so we hear. We can neither confirm nor deny these reports.

Conditions: 25 degrees. Cold. Clear skies. Urine also clear, though tinged slightly yellow.

The Thang: Circuits up and down the garage, and out Short Central Ave., cut over to Central, and back to the garage. Starting with 25 merkins and 25 LBCs, and decreasing by one each at three different stops per circuit. Once you get to 1 and 1, start heading back up. Rough estimate of .3 miles or so running/stairs per circuit. Ruckers follow same pattern, but begin with 15 merkins/squats. It’s a brutal 45 minutes with or without a ruck.

Results (R=Rucker):

High Stick 6.1 circuits (327 merkins/LBCs)

Floppy 7 (339)

Pretzel 9 (415)

FNA 4 (289)

Cheetah 7.2 (352)

KY 6 R (185 merkins/squats)

City Slicker 6 R (185)

Flo 8.2 (390)

Source:

https://www.quora.com/How-cold-would-it-need-to-be-for-urine-to-freeze-before-it-hit-the-ground-assuming-a-90-degree-angle

The freezing point of urine depends on the concentration of urine, which depends on the quantity of salts, urea, and various other organic substances present. With human urine, that depends mainly on fluid intake, and next the diet. Urine from vegetarians is somewhat different to that from carnivores. Other factors will also cause variation in the composition , such as if the source led a sedentary or an active lifestyle.

Age and sex also affect the composition of urine, as do metabolic and genetic factors. The volume of fluid drunk naturally affects the concentration of urine, as does the nature of the fluid – alcohol or coffee, for example. Finally, the age of the urine will affect the chemical composition. Rancid urine has much more free ammonia, and ammonium salts, and a lot less urea than a fresh sample.

Now, let us assume that the person is normal and drinks good amount of water, so the freezing point will be around -5 degree centigrade.

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