📬❄️📦Adafruit Holiday Shipping Deadlines 2019:
Attention all domestic customers! Please place UPS Ground and USPS First Class & Priority orders by 11am ET Monday December 9, 2019
Attention all international customers! Please place all UPS WORLDWIDE EXPRESS; SAVER, and DHL EXPRESS WORLDWIDE orders by 11am ET Monday December 9, 2019
Nearly 3,500 Years Old, an Egyptian Monument Gets a Laser Cleaning
We can hardly imagine a cleaning task of more epic or ancient proportions! This story in the NYTimes details the Metropolitan Museum of Art’s laser cleaning process of the 3,500 obelisk in their care:
Diana Craig Patch, the head of the Egyptian art department at the Met, raised an intriguing possibility. “I think it unlikely that there will be more scholarship on the hieroglyphs as a result of the cleaning, but we may know more about how it was painted possibly,” she said. “Traces might be found.”
Conservancy officials considered using lasers, microabrasives or chemical cleaners on the Obelisk. Beginning in October 2012, each method was tested on a small patch of the monument’s south face. Experts were then convened.
When everybody went up in a lift to see, by a great margin they said the laser had produced the greatest effect, with virtually no impact on the stone,” said Christopher Nolan, the conservancy’s vice president for planning, design and construction.
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.