Low-priced stock that sells at less than $1.00 per share. Often highly-speculative and volatile, such as start-up mining companies. While, in general, penny stock are considered high-risk securities, some penny stock mature into less-speculative investments. All penny stock are traded over-the-counter.
In its natural form, cork is also a very good fire retardant, although cork dust is actually extremely flammable (because here the cell structure has been broken down). Impermeable: Cork has a magic chemical in its cell membrane that makes it completely impermeable to liquids and gases.
How a Wine Becomes Corked. A corked wine does not mean a wine that has tiny particles of cork floating around in the glass. Corked wine is a term for a wine that has become contaminated with cork taint. Cork taint is not simply the taste of a cork.Rather it is caused by the presence of a chemical compound called TCA (2,4,6 - trichloroanisole) .in it. Most wine drinkers are probably familiar with the term 'corked wine' , but I hazard a guess that not as many wine drinkers really know what a corked wine tastes like, how a wine becomes corked in the first place, or how to detect a corked wine.