Core Graphics provides default image filters for quick special effects. Here's how to save image files in Preview for macOS ...

a smooth stone countertop is often the focal point of a kitchen renovation. Natural stones like marble and granite are popular for countertop materials, but quartz is an engineered stone that is ...

But to feed these vessels, a suitable stock of material is needed, and it turns out that lower grades of natural quartz are the perfect starting point for synthetic crystals. The beginning stages ...