Designer bodies competition
FINALLY, don't forget to send in your entries to our end-of-year competition. This year's theme revolves around current advances in biotechnology. "Designer bodies" are becoming more and more possible, so how would you modify the human body if you were not restricted in any way?
You may send in up to three suggestions by email, post or fax; the ones judged the most witty and original will win. All replies must reach us by Monday 5 December and the results will be published in our end-of-year issue (24 December/31 December). The editor's decision, as always, is final.
Thanks to the generosity of the Royal Society, 10 lucky winners will each receive copies of all six books shortlisted for the Royal Society's Aventis Prize for Science Books 2005.
Enigma 749: Four square digits
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From New Scientist #1904, 18th December 1993 [link] Here is a four-by-four
square of numbers. You will see that each row and each column adds up to
the sam...
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