A hand-held metal device that was used to calculate the date of Easter Sunday is believed to be the oldest English scientific instrument ever discovered. Made from copper alloy in 1311 and shaped ...

The sheng inspired the invention of two Western musical instruments. Chinese chime bells and gongs have always struck a chord. Here’s why Of the metal instruments used in a traditional Chinese ...

Supplier: Hammond Manufacturing Company Inc. Description: Key Features: Top and bottom made in 20 gauge steel (for strength) and finished in beige or satin gulf blue powder coat. Easy to machine 0.064 ...