• ordinary water 0C
• heavy water 4C

Roughly $600

Yes it can. water is the preferred method to douse water. Fireman use it every day. Although, when you have a stovetop fire, or an oil buring fire, do not use water. That makes it worse than befor. Use Salt, Baking Soda, or plain old dirt would be the best choice.

-hanging apple

-the energy that is stored in our cells of our body

-when we stretch a rubber band

-the water at the middle at the tap

-a football at the table

1. Apple on a table

2. Spring of a watch

3. You sitting on a Chair

4. a ball floating on a water column

5 Apple hanging on a tree

A rock next to a ledge.

A wound up spring.

A turned off faucet.

An unpopped balloon.

unexploded dynomite

heat/thermal

The heterogeneous nature of the structure of the monument reveals two important points, namely, no heat treatment has been applied and the metal of the pillar has never been in the molten state, probably the last stage in the construction of so large a piece of iron at that date would almost certainly have consisted of the hammer forging together of balls of iron and thereafter repeated re-heating and hammering process to create smooth surface. This must have taken a considerable time to complete. During this time an oxide film would have formed some of which could get hammered into the surface. Slag too would have oozed out and would have joined the scale. Owing to its high heat capacity and high ambient temperature the finished iron would have taken relatively long time to cool leading to a somewhat non-homogenous normalization, the quality of the oxide layer produced by this sequence of operation would in all probability greatly promote the preservation of the pillar in pure and dry climate.

According to the second theory, the protective oxide could have formed from atmospheric exposure. Examination of small pieces of scale obtained from the iron pillar reveals that it consists of approximately 80% of an oxide of iron having the properties of the solid solution phase of mixtures of FeO and Fe2O3. About 10% of this hydrated oxide of iron, approaching Limonite (Fe2O3.3H2O) has also been reported. From the above reports it can be concluded that the scale was apparently formed under conditions of heating with significant extent of atmospheric oxidation occurring at the surface and penetrating along cracks running longitudinally in the scale.

There have also been suggestions that in the past pillar was ceremonially anointed with purified butter. Tghee obtained from the milk of cow would have had a marked effect. A thin coating of linseed oil or lanoline or wool grease is well known to give good protection to steel for some months. If applied regularly and reinforced b the dust and sand which settle on it, it gives a good protective coating to the material underneath. However, the practice of ceremonial anointing would probably have been discontinued during Muslim occupation of the area in 12th century AD.

The great mass of metal might act as a temperature stabilizer, thus reducing condensation of moisture on it. It has already been mentioned that corrosion proceeds during those time when the effective relative humidity on the surface of the metal exceeds the critical value (e.g. 80%). In Delhi, this cannot normally occur during the day or early in the night because the air is very dry, except of course when it rains. During the remainder of the night the temperature slowly drops and because of its high heat capacity, the pillar remains warm and less liable to corrode than the relative humidity of the air would indicate. Just before day break the pillar is for a very short time cooler than air as dry, daytime conditions are quickly reestablished.

So, in brief, it can be concluded that the corrosion resistance property of the Delhi Pillar is due to: (i) the purity of its iron; (ii) high phosphorus; (iii) low sulphur; (iv) absence of any other metal; (v) cinder coating formed on the surface; (vi) better forge welding; (vii) drier and uncontaminated atmospheric condition; and (viii) mass metal effect The presence of second phase particles (slag and unreduced iron oxides) in the microstructure of the iron, that of high amounts of phosphorus in the metal, and the alternate wetting and drying existing under atmospheric conditions, are the three main factors in the three-stages formation of that protective passive film.

Its not. It will just be diluted with ordinary water.

No. Heavy water refers to water formed with a majority of the heavier isotopes of hydrogen, which are very radioactive; this water can be used to transport such isotopes more easily.

Cells use many different chemicals to get their energy, but water is a product of the process, not an "ingredient".

same as ordinary water, but the heavier Deuterium atoms are more effective at slowing neutrons to thermal energies.

In the case of a major disaster like Chernobyl, largely depending on winds. See the report referenced below.

Nazi Germany began its 'heavy water' experiments (or, more precisely, production) in mid-1940 after its invasion and conquest of Norway, which was at the time the world's only source of this key ingredient for the production of a nuclear weapon. Production at this facility ceased several years later as a result of several Allied bombing raids and the subsequent attempted transfer to Germany of the heavy-water supply, which was lost in yet another Allied-inspired sabotage operation.

1 Litre

Many pressurized water reactors use "regular" water (light water) as a primay coolant. That means that "only heavy water" is not a rule as regards reactor design. Reactor design specifies the coolant to be used.

Mainly, just like any other object, water can have:* Kinetic energy, if it moves.

* Gravitational potential energy, if it is above the ground level. It is this energy that is used by dams and hydraulic power plants.