Amplified spontaneous emission is a physical phenomenon that entails the amplification of the light spontaneously emitted by ...

China has begun an observation experiment on land-atmosphere interactions in the Mount Everest Region in Tibet to study the interaction between the land surface and the atmosphere, a crucial ...

Pollution by marine litter of anthropogenic origin—that comes from human activity—is currently one of the biggest ...

On watching this video, students should be able to: Distinguish between an observational and experimental study. Explain the main reason why a randomised experiment can if done well, be used as a test ...

Presenter 2: In this film, we will look at how to collect valid measurements when we carry out an experiment. Presenter 1: For example, I want to investigate the distance a car travels when the ...

With the aid of continuous observation, and a grant from the Royal Society for experimental purposes, he has been able to throw much light on these curious ponds. He shows that “dew-pond” is a ...

Korolev, 2018: Observations of the microphysical evolution of convective ... Blyth,and Coauthors, 2016: The Convective Precipitation Experiment (COPE): Investigating the Origins of Heavy Precipitation ...

In many settings, however, such experiments are expensive and time consuming. Hence, it is desirable to obtain causal information from observational data, that is, from data obtained by observing ...