• 9 Posts
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Joined 1 year ago
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Cake day: August 15th, 2023

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  • A bit surprising seeing us at the top since I rarely feel uncomfortable walking alone during night even through questionable areas. I usually do not even see anyone else so that might be the reason why nothing significant has happened.

    Most of those murders probably are from people you know because usually headlines mention something like ″Some guy kills another guy over a bottle of vodka and argument″. Rarely you see in news incidents where murder seems to have happened to random person.

    The only recent thing that shook me quite a bit was meeting a guy with large knife. I still do not know if it was just for his own protection and he was some local guard since I was in an industrial area where you would not expect anyone. He was visibly drunk and spoke Russian which I barely know so I did not spend too much time thinking about it and just run the hell away.

    It’s also better than it was before. In 90s we had a bit of a gangster period. Source.













  • Never realized there are so many rules for divisibility. This post fits in this category:

    Forming an alternating sum of blocks of three from right to left gives a multiple of 7

    299,999 would be 999 - 299 = 700 which is divisible by 7. And if we simply swap grouped digits to 999,299, it is also divisible by 7 since 299 - 999 = -700.

    And as for 13:

    Form the alternating sum of blocks of three from right to left. The result must be divisible by 13

    So we have 999 - 999 + 299 = 299.

    You can continue with other rules so we can then take this

    Add 4 times the last digit to the rest. The result must be divisible by 13.

    So for 299 it’s 29 + 9 * 4 = 65 which divides by 13. Pretty cool.