Carat vs Karat
A karat (K or kt) is a unit of gold purity. So a karat is 1/24th part of the whole in terms of gold content by weight in the alloy. In contrast: carat with a “c” is a unit of mass for gemstones, equal to 0.2 grams. Yes, this is correct: Multiple authoritative sources (Wikipedia, … Read more
The Best Gold Leaf: A Gilder’s Guide
On choosing the best gold leaf for various gilding situations. The Best Gold Leaf: A Gilder’s Guide When one says “best gold leaf,” it’s not quite as simple as picking the purest gold and calling it a day. Different project contexts—exterior surfaces, interior frames, glass (eglomise), decorative objects—demand different combinations of purity (karat), thickness, support … Read more
UTS Science – Gold nano to target Diseases, University Tech Sydney Oz
“The beautiful thing about [nano gold] is that we can other molecules on the surface of the gold in a very controlled way.” https://www.youtube.com/watch?v=N3laiMFFz0g Video was made private. Here’s a search for similar —https://www.youtube.com/results?search_query=UTS+Science%3A+Gold+nano+to+target+diseases+(University+Tech+Sydney+Oz) Related videos
Gold Nanoparticles – Strange properties and applications
Gold nanoparticles exhibit extraordinary properties quite unlike those of the bulk metal. These properties can be exploited in a variety of assay applications, including lateral flow tests, microscopy, flow cytometry and FRET assays. There are also a number of therapeutic applications, especially in the field of cancer. This free and exciting webinar focuses on the … Read more
Trade in Gold Dust – Oroville, California Chinese Temple
“Many Chinese merchant in gold-rush era Oroville traded in gold dust. Indeed, gold dust was also the local currency.” GOOGLE MAPhttps://www.google.com/maps/place/Oroville+Chinese+Temple/@39.5135642,-121.5639446,17z
The Mysterious Golden Hats of the ‘Ancient Wizards’ – Ancient Architects
Described as four cone-shaped golden hats from the Bronze Age, each of the four hats was actually discovered in a different location – 3 in Germany and 1 in France. Although separated by space, the artefacts are all thought to originate from a similar time, the Bronze Age, some time between 1400 and 800 BC. … Read more
Thoth & Hermes Through to the Magna Carta & US Constitution — Weights Measures
Thoth, Hermes, civilization and the law. Ancient symbolism, law and gods related to weights and measures and although the gods may have gone the importance of their purpose remains as valid to us now as it did in the ancient past. Transcript
History, Art and Science of Gilding
Gilding has transformed art, architecture, and design for over 5,000 years. Explore its history, techniques, and tools — and see how SeppLeaf Products continues the tradition today.
Colors, Pigments, Dyes
Purifying ores to metals such as gold, as well as making colours for cloth and painting is the work of chemists. The ancient past was no different. The records of the Egyptian sciences are not so clear where they do remain but the heirs of this ancient knowledge such as the Greeks and Romans did … Read more