Moreover, he says, both artifacts and bodies in the tombs were often "painted from head to foot in cinnabar," a brilliant vermillion pigment made from a mercury-sulfur compound, which could have contaminated the scientists' measurements.
According to some scientists, measurements of contact angles require the solid surfaces to be rigid, smooth and homogeneous, so the Young's equation is the appropriate equilibrium condition.
The trouble is that metrologists — scientists of measurement — don't agree on what the new standard should be.
To set that frequency, metrologists, as scientists of measurement are known, exploit a law of quantum physics: atoms become excited, and their structure changes, when they are exposed to specific amounts of energy — and the amount of energy required to cause a transition from one particular state to another is immutable, specific to each element.
However, it is not clear how the ways in which psychological scientists understand measurement accord with how the concept is understood in other scientific disciplines, or by the professional and general publics.
To peer inside the moon, scientists used measurements from two Nasa satellites called Ebb and Flow, collectively known as the Gravity Recovery and Interior Laboratory (Grail) mission.
As the adventurers forged north, a separate team of scientists undertook measurements and samples at an ice base north of Canada in -45C temperatures.
At a meeting of the American Astronomical Society, scientists described measurements of the distances to 100,000 galaxies, all lying within a few billion light years of Earth and its galaxy, the Milky Way.
Scientists used measurements from the Mars Science Laboratory (MSL), the spacecraft that took the Curiosity rover to the Red Planet in 2012, to work out the radiation threat to humans travelling through deep space for long periods of time.
The scientists used measurements from the new Argo network of floating robots to make the most complete analysis yet of the role of currents.
