![]() ![]() “It makes for the best cosmetic outcome.” ![]() “The biggest advantage with obsidian is that it is the sharpest edge there is, it causes very little trauma to tissue, it heals faster, and more importantly, it heals with less scarring,” he said. ![]() Were mystery holes in skulls an ancient aspirin? Scholars can't explain the purpose behind the mysterious, multiple openings. Healed bone around the edge of the holes indicates the patient was alive during the surgery and likely survived. Lee Green, professor and chairman of the Department of Family Medicine at the University of Alberta, says he routinely uses obsidian blades.Īn ancient surgeon in Peru likely used a sharp tool to carefully groove the perfect circles in this Incan skull. When you consider that most household razor blades are 300 to 600 angstroms, obsidian can still cut it with the sharpest materials nanotechnology can produce.Įven today, a small number of surgeons are using an ancient technology to carry out fine incisions that they say heal with minimal scarring.ĭr. Obsidian – a type of volcanic glass – can produce cutting edges many times finer than even the best steel scalpels.Īt 30 angstroms – a unit of measurement equal to one hundred millionth of a centimeter – an obsidian scalpel can rival diamond in the fineness of its edge. It could even have been a form of emergency surgery for battle wounds.īut while there is still conjecture about the real reasons behind the mysterious procedure, what is known is that the implement often used to carry out the primitive surgery was made from one of the sharpest substances found in nature: obsidian. In Neolithic times, trepanation – or drilling a hole into the skull – was thought to be a cure for everything from epilepsy to migraines.
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The published Declare label and database entry summarize the product ingredients and alignment with the Living Building Challenge requirements, making it easier for product specifiers to make informed decisions about product health and environmental impact. Those ingredients are then screened against the Living Building Challenge Red List, and identified Red List ingredients are highlighted. Declare requires ingredient reporting to 100ppm for a minimum of 99%, by weight, of a product’s ingredients. Question: What is the purpose of the Declare program?Īndrea Cooper: Declare is a product ingredient transparency platform. Declare stands by transparent and open communication and with our new database, we’re allowing consumers and designers a more streamlined point of entry into the world’s most groundbreaking products.Īndrea Cooper, Declare program Manager, discusses the benefits of this new platform and how it will ensure the program’s continued growth. 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