Is the absorption of carbon. As a result of the drying/hardening process, lime carbonates and reverts back to calcium carbonate, the same chemical product as the original limestone. The term Lime Cycle is often used to refer to this process.

Air will contain varying quantities of water vapour depending on it's temperature, with warm air holding more moisture than colder air. Condensation occurs when humid air comes into contact with surfaces that are colder than the humid air surrounding them.

As the temperature this warm/humid air falls, so does the amount of moisture it is able to hold. The temperature of the 'excess' moisture lowers nearest to the source of cold, forming droplets of water. This condensation is most noticeable when it forms droplets or beads of water on hard/non-absorbent surfaces, such as windows or tiled walls.  Condensation can form on any surface, however this may not become apparent until a mould becomes noticeable.

The best way to encourage mould in a bathroom is to close shower doors/draw curtains, have no open window ventilation, leave lots of wet towels in the room and close the bathroom door immediately after use. This will create a humid, becoming cold environment. Mould spores will thrive. Get the point?

Lime may refer to quicklime or slaked lime, historically used to form the binder for mortar, plaster, harl/render and limewash. It was widely used until the mid-1800's.  Pieces of limestone are heated in a kiln to produce Quicklime.

Slaked lime is produced when the quicklime is covered with water. The quicklime heats, breaks down, and after being mixed with the water, creates a putty. The putty may be kept indefinitely and actually improves with time. Lime is usually stored in sealed plastic tubs. Traditionally it was kept in barrels or large vats covered with water to prevent drying.

Hydrate, is usually sold in bagged powder form.  When the like is mixed with sand it is referred to as a dry-slaked mix.

Lime based products carbonate, which is they harden by absorbing carbon dioxide from the atmosphere and revert back to calcium carbonate, this makes Lime a 'green' product as it absorbs carbon from the atmosphere.

Georgian 1714 to 1830
From the accession of King George I to the death of King George IV

Victorian 1837 to 1901
The period encompassing the reign of Queen Victoria

Edwardian 1901 to 1910
The period of the reign of King Edward VII