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Magnus Eisengrim Inner circle Sulla placed heads on 1053 Posts |
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On 2013-05-02 13:41, Magnus Eisengrim wrote: Sorry, Batsmagic is the one who noted the importance of saw cuts, not of the camera cuts. You can easily make (a simpler) one out of paper or cardboard. Once you've done a couple, you should be able to see how to make variations.
The blood-dimmed tide is loosed, and everywhere
The ceremony of innocence is drowned; The best lack all conviction, while the worst Are full of passionate intensity.--Yeats |
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Woland Special user 680 Posts |
I saw something like this for sale in a magic shop in Paris a couple of years ago. It was a lovely puzzle, and very well made. But far too expensive for me. Your simple example, Magnus, is very helpful and explanatory. The more complex only versions hide the "trick" more effectively. Is there a mathematical name for this phenomenon?
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Michael Daniels Inner circle Isle of Man 1609 Posts |
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On 2013-05-02 16:11, Woland wrote: Martin Gardner calls it "The Principle of Concealed Distribution". He has two chapters on these puzzles in Mathematics, Magic and Mystery, with many variants. Mike |
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Woland Special user 680 Posts |
Thanks, Mike. I like the name! I will certainly look it up.
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mastermindreader 1949 - 2017 Seattle, WA 12586 Posts |
Isn't this the same principle used in the Vanishing Leprechaun puzzle?
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Pakar Ilusi Inner circle 5777 Posts |
Wow, why the need to know?
Doesn't this wonderment feel like that first trick you ever saw? Just leave it be. At least don't argue. It's just a Magic Forum.
"Dreams aren't a matter of Chance but a matter of Choice." -DC-
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mastermindreader 1949 - 2017 Seattle, WA 12586 Posts |
Who's arguing Pakar? I was simply asking a question.
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Marlin1894 Special user 559 Posts |
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On 2013-05-02 16:32, mastermindreader wrote: Yes. |
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Michael Daniels Inner circle Isle of Man 1609 Posts |
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On 2013-05-02 16:32, mastermindreader wrote: Yes it is. Chapter 7 of MMM covers picture puzzles. Chapter 8 covers the checkerboard paradoxes. They are all based on the same principle (assuming there is no additional trickery such as switching pieces). Mike |
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Pakar Ilusi Inner circle 5777 Posts |
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On 2013-05-02 16:36, mastermindreader wrote: I didn't mean you Bob, you just beat me to the post. It's the guys before you, getting all riled up over not knowing how a trick works... Magicians....
"Dreams aren't a matter of Chance but a matter of Choice." -DC-
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mastermindreader 1949 - 2017 Seattle, WA 12586 Posts |
Alright then. My apologies.
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landmark Inner circle within a triangle 5194 Posts |
Paul Curry of Out of This World fame gets usually gets the credit for this one. The Triangle version is called a Curry Triangle.
Click here to get Gerald Deutsch's Perverse Magic: The First Sixteen Years
All proceeds to Open Heart Magic charity. |
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BatsMagic Inner circle New York 1052 Posts |
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On 2013-05-02 16:34, Pakar Ilusi wrote: I honestly don't think we were arguing, Pakar. It was just a discussion with a lot of passion! :bat: |
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Pakar Ilusi Inner circle 5777 Posts |
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On 2013-05-02 16:57, BatsMagic wrote: I see, one man's meat whipping is anothr man's kinky.
"Dreams aren't a matter of Chance but a matter of Choice." -DC-
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Michael Daniels Inner circle Isle of Man 1609 Posts |
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On 2013-05-02 16:45, landmark wrote: Martin Gardner attributes the earliest picture versions to Sam Loyd who patented his famous "Get off the Earth" puzzle in 1896. The checkerboard puzzles can be traced back to William Hooper's "Rational Recreations" (1794). Martin Gardner credits Paul Curry for the discovery of Curry's Paradox (in which a hole is left when the pieces are rearranged). Martin Gardner claims the credit himself for the triangular versions, though he does, modestly, call these "Curry's Triangle". I can't help thinking this thread is in the wrong forum. Mike |
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Magnus Eisengrim Inner circle Sulla placed heads on 1053 Posts |
I first saw these things in a Dover impression of a translation of a wonderful old Soviet textbook for mathematics teachers called Lapses in Mathematical Reasoning
The blood-dimmed tide is loosed, and everywhere
The ceremony of innocence is drowned; The best lack all conviction, while the worst Are full of passionate intensity.--Yeats |
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RobertSmith Veteran user 330 Posts |
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On 2013-05-01 15:44, BatsMagic wrote: The same puzzle goes around Facebook regularly using a Hershey bar. That image, however, does not account for the blade width. The puzzle on YouTube listed in this link, if you look closely, you can see that the gray squares along the cut line, when matched up, are no longer squares and in fact, do not line up. Thank you for the clear explanation. |
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RobertSmith Veteran user 330 Posts |
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On 2013-05-02 11:56, Michael Daniels wrote: There's no method period besides just making the cut. The blade width used to make the cut in the blocks turns approximately one blocks worth into saw dust. So when rearranged and pushed back together, one block is left over. That one block, if it could be spread out and realigned, would fit back into the gap of the blade width. |
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Michael Daniels Inner circle Isle of Man 1609 Posts |
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On 2013-05-02 17:19, RobertSmith wrote: I like the idea, but it is totally incorrect. Mike |
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BatsMagic Inner circle New York 1052 Posts |
Sorry, Robert, but I know that that is NOT the answer!
Do as I said and make it out of cardboard (the thickness will provide some stability), cut it with a straight edge razor blade (no sawdust left over) and you will see for yourself. You just have to be able to measure correctly and be a little good with tools. I did it, and I understand EXACTLY how it works. SORRY! I would agree with you if you were right! And this is NOT an argument. :bat: |
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