Free Republic 2nd Qtr 2025 Fundraising Target: $81,000 Receipts & Pledges to-date: $53,620
66%  
Woo hoo!! And we're now over 66%!! Thank you all very much!! God bless.

Keyword: pigments

Brevity: Headers | « Text »
  • Scientists Recreate the Glowing Egyptian Blue That Lit Pharaohs’ Tombs

    06/09/2025 8:11:47 AM PDT · by Red Badger · 7 replies
    Study Finds ^ | June 06, 2025 | John McCloy, Washington State University
    Closeup image of an ancient wooden Egyptian falcon. Researchers have found a way to repoduce the blue pigment visible on the artifact, which is the world's oldest synthetic pigment. (Credit: Matt Unger, Carnegie Museum of Natural History) =============================================================== In a nutshell * Ancient Egyptian artisans developed precise, repeatable recipes to create four distinct shades of Egyptian blue, the world’s first synthetic pigment, long before the science of chemistry existed. * The pigment’s iconic blue color comes primarily from the mineral cuprorivaite, and researchers found that even samples with only 50% cuprorivaite could produce rich, vibrant blues. * Modern scientists recreated...
  • New Study Reveals That Eating Pistachios Could Improve Your Eye Health in Just 6 Weeks

    10/30/2024 6:02:58 AM PDT · by Red Badger · 27 replies
    Scitech Daily ^ | October 29, 2024 | American Pistachio Growers 🙄
    A study from Tufts University found that daily consumption of pistachios can enhance eye health by increasing macular pigment optical density (MPOD), which helps protect against blue light and age-related eye damage. This benefit is attributed to pistachios’ unique content of lutein, a plant pigment essential for eye health and potentially useful in preventing age-related macular degeneration (AMD). Daily pistachios boost eye health by raising lutein, protecting against age-related damage, and supporting brain function. A recent study by researchers at Tufts University’s Friedman School of Nutrition Science and Policy suggests that eating pistachios daily may greatly benefit eye health. This...
  • AFFORDABLE PHOTO PRINTING

    12/04/2009 5:16:10 PM PST · by SWAMPSNIPER · 64 replies · 1,619+ views
    self | DECEMBER 04, 2009 | swampsniper
    I take a lot of photos, I've completely worn out 4 cameras in the last 8 years. I've gone through as many printers, all of them really too expensive to feed on my budget. I installed a constant ink supply system recently, and I've tested it enough to predict that it will last. My greatest expense item is now the photo paper. Print quality is excellent, I might get better results from a pro print shop, but not much better if at all. I'm a big fan of HP printers but those little cartridges are just too expensive!This is still...