Opal is known for its unique display of flashing rainbow colors called play-of-color. There are two broad classes of opal: precious and common. Precious opal displays play-of-color, common opal does ...

To address these challenges, the team developed heat sinks that contain a wax-based phase change material that melts within the normal operating temperature range of the electronics. The melting wax ...

Whether you have a "precious opal" with its famous rainbow sparkles or a "common opal" without fire, either can ignite passion and imagination, helping you solve everyday problems. It truly turns up ...