The Kardashev Scale, first proposed by Russian astronomer Nikolai Kardashev, measures the technological advancement of civilizations by the amount of energy they can harness and use. In its original ...

Medical scales are an integral piece of equipment for all medical establishments. Nearly every patient uses the weight scale designed for medical or health-care purposes as part of their treatment and ...

The history of the hair typing system is a complicated one. The original hair type system, the hair gauge, was developed in 1905 in present-day Namibia by Eugen Fischer — a German scientist whose ...