It allows journals to be published online and links to bemade from one paper to another. It also permits professionalscientists to recruit thousands of amateurs to give them ahand. One project of this type, called GalaxyZoo, used theseunpaid workers to classify one million images of galaxies intovarious types (spiral, elliptical and irregular). This project,which was intended to help astronomers understand howgalaxies evolve, was so successful that a successor has nowbeen launched, to classify the brightest quarter of a millionof them in finer detail. People working for a more modestproject called Herbaria@home examine scanned images ofhandwritten notes about old plants stored in British museums.This will allow them to track the changes in the distribution ofspecies in response to climate change.
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