At some point Fahrenheit figured out that the boiling point of water came in at 212 degrees. Over time this replaced body temp as the upper landmark on his scale. Meanwhile, as more precise measurements were made, body temperature had to be adjusted to 98.6 degrees.
http://www.straightdope.com/columns/read/845/on-the-fahrenheit-scale-why-is-32-freezing-and-212-boiling
A unique property of water is that its density increases at 4°C (39°F), just before it hits. freezing temperature. This causes water at this temperature to sink to the bottom of the. pond or lake. When water molecules do freeze, the ice is less dense than the 4°C water, causing it to float on the surface. The differences in density start mixing the top and. bottom layers of water. This mixing of the water layers as air temperatures become. colder is called fall turnover (Fig. 1).
https://www.westminster.edu/about/community/sim/pdf/sfreezingtempoffreshwater.pdf
(Romer didn't like using negative numbers in his weather logbook.) In addition to the boiling point of water, the landmarks on Romer's scale were the freezing point of water, 7-1/2 degrees, and body temperature, 22-1/2 degrees. D.G., simple soul that he was, thought this cockeyed system was the soul of elegance.
http://www.straightdope.com/columns/read/845/on-the-fahrenheit-scale-why-is-32-freezing-and-212-boiling
Surprisingly, ice forming in a pipe does not typically cause a. break where the ice blockage occurs. It’s not the radial expan-. sion of ice against the wall of the pipe that causes the break. Rather, following a complete ice blockage in a pipe, continued. freezing and expansion inside the pipe causes water pressure. to increase downstream -- between the ice blockage and a. closed faucet at the end.
https://www.iccsafe.org/wp-content/uploads/DIS-FreezeBurstPipe.pdf
Ocean water freezes at a lower temperature than freshwater. At least 15 percent of the ocean is covered by sea ice some part of the year. Ocean water freezes just like freshwater, but at lower temperatures. Fresh water freezes at 32 degrees Fahrenheit but seawater freezes at about 28.4 degrees Fahrenheit, because of the salt in it. When seawater freezes, however, the ice contains very little salt because only the water part freezes. It can be melted down to use as drinking water.
http://oceanservice.noaa.gov/facts/oceanfreeze.html
However, ex-. tremely cold weather and holes in the building that allow a. flow of cold air to come into contact with pipes can lead to. freezing and bursting. Water pipes in houses in southern climates often are more. vulnerable to winter cold spells.
https://www.iccsafe.org/wp-content/uploads/DIS-FreezeBurstPipe.pdf
However, freezing incidents can occur when the tem-. perature remains above 20 degrees F. Pipes exposed to cold air. (especially flowing air, as on a windy day) because of cracks in. an outside wall or lack of insulation are vulnerable to freezing. at temperatures above the threshold.
https://www.iccsafe.org/wp-content/uploads/DIS-FreezeBurstPipe.pdf
Dear Cecil: Everybody knows 0 degrees on the Celsius scale is the freezing point of water and 100 degrees is the boiling point. On the Fahrenheit scale, however, freezing is 32 degrees and boiling 212.
http://www.straightdope.com/columns/read/845/on-the-fahrenheit-scale-why-is-32-freezing-and-212-boiling
Sea water becomes more and more dense as it becomes colder, right down to its freezing point. Fresh water, on the other hand, is most dense while still at 39.2 degrees Fahrenheit, well above the freezing point. The average temperature of all ocean water is about 38.3 degrees Fahrenheit.
http://oceanservice.noaa.gov/facts/oceanfreeze.html
The best way to keep water in pipes from freezing is to. slow or stop this transfer of heat. Ideally, it is best not to expose water pipes to subfreezing tem-. peratures, by placing them only in heated spaces and keeping. them out of attics, crawl spaces and vulnerable outside walls.
https://www.iccsafe.org/wp-content/uploads/DIS-FreezeBurstPipe.pdf
temperature of water freezing
The temperature of water freezing is 0 degrees on the Celsius. Water freezing temperature is zero degrees Celsius.