studiot Posted September 9, 2020 Author Share Posted September 9, 2020 These are not palindromes but still useless but interesting 122 = 144 reverse the digits 212 = 441 and 132 = 169 reverse the digits 312 = 961 2 Link to comment Share on other sites More sharing options...
joigus Posted September 9, 2020 Share Posted September 9, 2020 Nice. Link to comment Share on other sites More sharing options...
joigus Posted September 9, 2020 Share Posted September 9, 2020 Although it's not that useless... Link to comment Share on other sites More sharing options...
studiot Posted September 9, 2020 Author Share Posted September 9, 2020 32 minutes ago, joigus said: Although it's not that useless... Oh ?? Link to comment Share on other sites More sharing options...
joigus Posted September 9, 2020 Share Posted September 9, 2020 7 minutes ago, studiot said: Oh ?? Calculation shortcuts and mnemonics. 1 Link to comment Share on other sites More sharing options...
studiot Posted September 9, 2020 Author Share Posted September 9, 2020 (edited) 2 minutes ago, joigus said: Calculation shortcuts and mnemonics. Thank you I will (try to) remember that next time I want 13 squared or 12 squared. They are 31 squared and 21 squared reversed. +1 Edited September 9, 2020 by studiot Link to comment Share on other sites More sharing options...
joigus Posted September 10, 2020 Share Posted September 10, 2020 On 9/2/2020 at 5:58 PM, Airbrush said: Salvador Dali was famous for saying "I know what I eat, but I don't know what I do." Another Dali factoid: He doodled on the cheques so they would never be cashed: https://theuijunkie.com/salvador-dali-cheque-restaurants/ 1 Link to comment Share on other sites More sharing options...
Salik Imran Posted December 12, 2020 Share Posted December 12, 2020 Hello! Here are some useless facts for you: rubber bands that are refrigerated last longer, playing dance music can help ward off mosquitoes, and peanuts are one of the ingredients of dynamite! Provided by myself from (url deleted; violation of rule 2.7) Link to comment Share on other sites More sharing options...
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