The Denon AH-C500W are the heritage Japanese audio brand’s newest pair of wireless earbuds. They have a similar stem shape (and promise a similar fit) of Apple’s classic AirPods, but pack new-age ...

Standard gemological properties were measured with a Rayner refractometer (yttrium-aluminum-garnet prism ... Under darkfield illumination, tube-like growth features (figure 5) were found in 10 of the ...