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Quote by Chanda Prescod-Weinstein

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Chanda Prescod-Weinstein

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“From time to time, there are press accounts of astronomers seeing the birth of a new star. This leaves the impressions that astronomers saw a star that wasn't there last year, but this isn't what is happening at all. Rather, astronomers sometimes discover stars among clouds of gas and dust. These stars have certain properties that most astronomers think young stars ought to have, and, given their location in regions that many astronomers view as stellar nurseries, they interpret these stars as being newly born, say in the past few million years. The process of star formation is supposed to be very slow compared to human lifetimes, so no one has ever claimed to have seen a star being born.”

“Like most mammals, dogs only have 2 colour detecting cells or cones. This is in contrast to humans, who have 3. Dogs, therefore see a restricted colour spectrum. However, they are not colourblind, instead they see the world in yellow, blue and grey. For dogs, green, yellow and orange are perceived as yellowish, while purple and blue are perceived as blue, and blue-green as grey. As a result, dogs have a hard time recognising a red ball in a green field.”