Despite being standardised in the late 1800s, BA threads, the British Association threads used in old electrical equipment, including vehicle magnetos, are based on the metric system. A BA0 bolt has ...

When Sally Mitchell, a science teacher at East Syracuse Minoa Central High in Syracuse, New York, spoke to a group of students at the recent U.S. Department of Energy National Science Bowl, she ...

When it comes to measurement systems, the world largely follows a single standard: The metric system. Yet, the United States remains one of the few countries that continues to primarily use the ...

The Johnson Gage Company will feature its full range of Portable or Bench External and Internal Thread Inspection Systems that incorporate functional and pitch diameter size measurements for UN, ...