The Nest of the Edible-Nest Swiflet and its High Economic Value

swiftlet-birds-nest

Birds nests made by edible-nest swiftlets using solidified saliva is highly prized all throughout Asia with a single kilogram selling for over $2000.00. Edible-nest swiftlet nests are believed by those who subscribe to the practice of eastern, more specifically Chinese medicine, to boost the immune system, improve skin complexion, and to fight signs of aging, however none of these claims have been backed up with scientific evidence. Edible-nest swiftlets prefer to create their nests in dark caves, so aside from farming them in specialized dark rooms, acquiring them in nature is incredibly dangerous as steep and sheer cliffs must be scaled to reach the nests which are precariously high above ground level. It takes edible-nest swiftlets 40 days to make a single nest and nests can only be produced during the breeding season which is when the edible-nest swiftlets salivary glands engorge

Edwardian Quicklime Kilns

quicklime

During the early 20th century during the Edwardian period, poverty was quite rampant in England and those who were homeless would often seek out quicklime kilns burning throughout the countryside in an attempt to stay warm during the night. Quicklime was produced to create mortar for buildings and is designed to neutralize the acidity of the bedrock within farming soil. Quicklime is created by mixing limestone with coal to produce and sustain a constant temperature of 900 degrees Celsius. Quicklime kilns produce carbon monoxide as a by-product among other caustic chemical vapors because of the burning limestone and those who slept beside the kilns would often be rendered unconscious while sleeping because of the carbon monoxide produced, sometimes causing them to shift or roll, and fall into the kiln which was typically few meters both in diameter and depth. These unfortunate victims would be cooked alive, only to be found days later when those producing the quicklime returned to check on their work