Search results
Results from the WOW.Com Content Network
[citation needed] [13] It picked up again in its former sites, Syria and Cyprus, in the 9th century BCE, when the techniques for making colorless glass were discovered. [citation needed] The first glassmaking "manual" dates back to ca. 650 BCE. Instructions on how to make glass are contained in cuneiform tablets discovered in the library of the ...
After experimenting with a plastic detergent bottle that proved incapable of withstanding the forces of pressurized liquids, he realized that a much stronger material would be required. He initially experimented with polypropylene , but ultimately settled on polyethylene terephthalate as the material and received the patent in 1973.
Digby owned a glassworks that made bottles which were globular in shape with a high, tapered neck, a collar, and a punt. His manufacturing technique involved a coal furnace, made hotter than usual by the inclusion of a wind tunnel, and a higher ratio of sand to potash and lime than was customary. Digby's technique produced wine bottles which ...
A wax coating makes this Manila hemp waterproof. A lava lamp is a novelty item that contains wax melted from below by a bulb. The wax rises and falls in decorative, molten blobs. Sealing wax was used to close important documents in the Middle Ages. Wax tablets were used as writing surfaces.
Glass is a relatively heavy packing material and wine bottles use quite thick glass, so the tare weight of a full wine bottle is a relatively high proportion of its gross weight. The average weight of an empty 750 mL wine bottle is 500 g (and can range from 300 to 900 g), which makes the glass 40% of the total weight of the full bottle. [27]
The 300-plus-year-old glass onion bottles were discovered from the 1715 Treasure Fleet shipwreck, ... The thin-glass bottles were probably made in England, Ard added, as the Spanish did not make ...
Candle moulding machine in Indonesia circa 1920. Candle making was developed independently in a number of countries around the world. [1]Candles were primarily made from tallow and beeswax in Europe from the Roman period until the modern era, when spermaceti (from sperm whales) was used in the 18th and 19th centuries, [2] and purified animal fats and paraffin wax since the 19th century. [1]
California-based Ron Rubin Winery solves two problems in one swoop by packaging its Blue Bin Wine in a lighter, glass-lined recycled plastic bottle. ... packaging is plastic free, made from plants ...