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...system and details of when the observation was made, is typically stored within the image file as metadata. We need to employ careful methods to make measurements from images such as Figure 1 if we are to make reliable inferences about stars and galaxies. In this section, you will examine how these measurements are made, and what they can tell us...Astronomy: images of...

...system or a car radio rather than in a concert hall. In this case your music is relayed to you via various technological devices; well before the music reaches a compact disc (CD) or radio it will have been manipulated in various way using studio devices for recording, mixing and mastering. From the traditional acoustic instruments to the modern computer-based sampler or...

...systems were evidently very ancient (billions of years old), so although they showed an abundance of liquid water in the past they had no bearing on the occurrence of water at the present time. [An image of "Martian Canals" depicted by Percival Lowell. There are two greyed out circles and patterns of lines making canal-like avenues on it.] "Canals" on Mars drawn by...

...system was used to reanimate a pair of fresh pig hearts during live performances. The work explored organ transplantation and the ambiguous philosophical thresholds between bodies, life and death, echoing many of the themes raised by Blade Runner. The artists sought to encourage empathetic responses from viewers and a deeper awareness of their own bodies. Replicants, like...