(Phys.org)—Werner Heisenberg originally proposed the uncertainty principle in 1927, but his original proposal was somewhat different than how it is interpreted today. As a recent paper in Physical ...

I’ve written a lot about how we can determine the uncertainty of a measurement. It is often assumed that our confidence in a measurement equates to our confidence that the product being measured ...

If you’ve read my previous articles, you probably know that I consider uncertainty evaluation the gold standard for instrument capability studies. You will also know that conventional gage studies can ...

The process of accurate weighing begins with correct and appropriate selection of a balance. The main question is whether the balance chosen will meet the measurement uncertainty budget for the ...

The equations that describe physical systems often assume that measurable features of the system—temperature or chemical potential, for example—can be known exactly. But the real world is messier than ...

This article predates the current owners of Science Blog. It has not been reviewed under the current editorial process and is kept as part of the archive. Optical tweezers, shown here trapping a ...