By analyzing the electromagnetic radiation emitted by these glowing markers, the researchers were able to accurately measure the distance between them. The fluorescent "ruler" was based on a ...
While rulers and tape measures are ubiquitous, they always seem to disappear when you need them. We know you’d never forget your safety glasses (safety first!), so what if they were also a ...
Measuring Difference ... Maps, scales, surveyors’ tools, rulers and specimen jars make up just a few of the objects on display. All tell a tale of Europeans’ attempts to make sense of race ...