Lost wax casting in the context of "Mehrgarh"

Beeswax (also known as cera alba) is a natural wax produced by honey bees of the genus Apis. The wax is formed into scales by eight wax-producing glands in the abdominal segments of worker bees, which discard it in or at the hive. The hive workers collect and use it to form cells for honey storage and larval and pupal protection within the beehive. Chemically, beeswax consists mainly of esters of fatty acids and various long-chain alcohols.

Beeswax has been used since prehistory as the first plastic, as a lubricant and waterproofing agent, in lost wax casting of metals and glass, as a polish for wood and leather, for making candles, as an ingredient in cosmetics and as an artistic medium in encaustic painting.

The Farnese Hercules (Italian: Ercole Farnese) is an ancient statue of Hercules made in the early third century AD and signed by Glykon, who is otherwise unknown; he was an Athenian but he may have worked in Rome. Like many other Ancient Roman sculptures it is a copy or version of a much older Greek original that was well known, in this case a bronze by Lysippos (or one of his circle) that would have been made in the fourth century BC. This original survived for over 1500 years until it was melted down by Crusaders in 1205 during the Sack of Constantinople. The enlarged copy was made for the Baths of Caracalla in Rome (dedicated in 216 AD), where the statue was recovered in 1546, and is now in the Museo Archeologico Nazionale in Naples. The heroically-scaled Hercules is one of the most famous sculptures of antiquity, and has fixed the image of the mythic hero in the European imagination.

The Farnese Hercules is a massive marble statue, following a lost original that was cast in bronze through a method called lost wax casting. It depicts a muscular, yet weary, Hercules leaning on his club, which has the skin of the Nemean lion draped over it. In myths about Heracles, killing the lion was his first task. He has just performed one of the last of The Twelve Labours, which is suggested by the apples of the Hesperides he holds behind his back.

Thermoluminescence dating (TL) is the determination, by means of measuring the accumulated radiation dose, of the time elapsed since material containing crystalline minerals was either heated (lava, ceramics) or exposed to sunlight (sediments). As a crystalline material is heated during measurements, the process of thermoluminescence starts. Thermoluminescence emits a weak light signal that is proportional to the radiation dose absorbed by the material. It is a type of luminescence dating.

The technique has wide application, and is relatively cheap at some US$300–700 per object; ideally a number of samples are tested. Sediments are more expensive to date. The destruction of a relatively significant amount of sample material is necessary, which can be a limitation in the case of artworks. The heating must have taken the object above 500 °C, which covers most ceramics, although very high-fired porcelain creates other difficulties. It will often work well with stones that have been heated by fire. The clay core of bronze sculptures made by lost wax casting is also able to be tested.