Water rules

George_10

Water destroys all metals. Some just take longer that others.

Einsiedler

rule#2

An extraordinary property of water is its ability to dissolve other substances. There is hardly a substance known which has not been identified in solution in the earth's waters. Were it not for the solvent property of water, life could not exist because water transfers nutrients vital to life in animals and plants.

A drop of rain water falling through the air dissolves atmospheric gases. When rain reaches the earth, it affects the quality of the land, lakes and rivers.

Lets take care of it & use it wisely

EIN

PJO_5

Rule #3?

Water is the second most powerful thing on the Earth. Earth's own gravity is first....

That's what I was told, although I have other thoughts...

Take Care, PJO

Dave Yates (PAH)

#4

Less than 1% of the earth's water is readily available for human consumption without extensive purification being required.

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imatellerslie

rule #5: water expands when it freezes

This seems pretty obvious to most people, but it's an unusual property.

Most substances are more dense in solid form than in liquid form. Water is the opposite; it expands when it turns solid, which is why ice floats. It's also why ice is so slippery. When you step on ice and exert pressure on it, the top layer turns to liquid in response, making the ice very slippery.

Life on this planet would not exist as we know it if ice didn't float. If ice were more dense than liquid water, then rivers, streams, tidal pools, estuaries, and maybe even oceans would have frozen from the bottom up. As it is, when the planet experiences a long cold spell, a protective layer of ice forms on the surface, and aquatic life can still exist underneath.

jackchips_2

Rule #6

When it rains, we should all stand outside with our heads turned up and mouths open.

Ex Maine Doug

Rule #7

You can not breath water.
#8 Water is very heavy
#9 Bottled water is more expensive that milk or gasoline per gallon.
#10 Water flows downhill
#11 It is extremely expensive, sometimes impossible, to clean water you have contaminated.
#12 Hot water looks like cold water but burns skin.

Dave Yates (PAH)

#14

Just like hotels - no #13!

Frazzle ice forms on stream beds where water moves the fastest due to sub-cooling. At the friction point where the water rubbs the botom, there is a slight reduction in speed & that allows the ice crystals to form into solid layers.

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Mike T., Swampeast MO

#15

Water is the most studied substance. So studied and important that its heat carrying ability is assigned the number 1.0

Mad Dog

Rule# 22.......Keeping the water ..............................

in the pipes is usually a good thing. Mad Dog

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jim lockard

13 Fear not

Thought you might enjoy, 13 orgininal colonies, 13 strips on our flag 13 steps on the Pyramid 13 letters in the latin above 13 letters in "E PLuribus Unum 13 stars above the eagle 13 feathers on each span of the eagles wing 13 bars on the shield 13 leaves on the olive branch 13 fruits and count'em close David 13 Arrows. When ever someone starts the 13 thing I bring out a dollar and share this with them hoping that the fear of 13 will have them surrendering all those scary dollars to me. Oh one more thing Dave the great seal of US was designed by a fellow Penna Do you Know? Phone rang -no heat later J.Lockard

jim lockard

M.D

More money to be made when the water finds its way out of the pipe. J.Lockard

Ex Maine Doug

How did it get to #22?

This is #15 Water does not compress easily.
#16 Only hydrogen and oxygen get to make water
#17 Water vapor is invisible

jwade55_3

For this to happen

the id of the pipe must be smaller than the od of said pipe. (A college egineering professor of mine used to use that on a test. Got a bunch of people.)

J

Unknown

water Quality

is probably the MOST overlooked factor when preforming hydronics as a profession.

Gary

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Arthur

Water is NOT corrosive

Contrary to opinion Water is NOT corrosive. However water and air (Oxygen) is corrosive. I've seen a heating system 50yrs old (Low pressure hot water system) Pressed steel rads (16gauge steel) and pipework all as good as the day they were installed.
In over 40yrs I've never seen a heating system rot out from the inside out but boy wish I had a dollar now for every one I've seen rotted out from the outside in. Underground pipes, exposed to the weather etc, It seems if lagging (insulation) gets wet it accelerates the corrosion several times over especially fibreglas.

Ex Maine Doug

# 18 Tiny water molecule

The water molecule is very tiny. So small it is the only one that fits thru the pores in a reverse osmosis membrane and the junk won't which is why that process works.

jp_2

compressing water

hey, we used to compress water at work, 10%, though it did take 55,000 psi to do it! water cuts like a knife....