The Six-Letter Dictionary

If you ever happen to get your hands on a scientific calculator, you’ll notice a smorgasbord of intriguing symbols and letters – ‘nPr’ and ‘nCr’ to name a couple. These functions calculate permutations and combinations respectively – useful if you wanted to calculate the probability of you winning the lottery (there are far more significant applications, of course.)

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Anybody There…?

For many of us it will take quite a drive in order to escape the light pollution of urban metropolises… but the reward of being able to see the array of countless stars in the night sky is certainly worth the effort. Through experiences such as these we may find ourselves asking, where are all the aliens?

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