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Search results 1-20 of 474.
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youtube.com/watch?v=w5P8jHlOMEA
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My last "invention" before the closing of the forum: a magnetic Rubik cube made with dice. I have used 94 neodymium magnets of 3x3 mm and 12 of 10x3 mm, drilling the dice and gluing the magnets in the corresponding faces; the most complicated to orientate well the magnetic poles for all the turns will work correctly and the dice will attract. If someone wants the schemes of how the magnets go in each die, I pass them on. The dice and magnets I bought in Aliexpress (China), quite cheap. The adhes…
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Thread for farewells
PostI entered in the forum.origin by chance, on the occasion of a retro-universe that was created a few years ago, was back in June 2016. Since then it is not that I have written much or that I have met many of you, but some do. I sincerely thank all users who have read some of my threads, and even more to those who have written in them, which, by the way, have not been many, heheheee. In any case, my most sincere gratitude. And without neglecting these users, I would like to make special mention of…
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I do not like football, well, I hate football but ... Final Champions 2019 in Madrid (Spain): Tottenham Vs Liverpool. Many English people in the city and a great festive atmosphere copa-01.jpg copa-02.jpg
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Give me the butter !!! youtube.com/watch?v=1DvvdLcfK58
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Icosahedron tensegrity: iso-01.jpg iso-02.jpg iso-03.jpg
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youtube.com/watch?v=KGNhJYD1YwU
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Thanks @Valent !. _________________________ PHOTO 51 Possibly few of you have heard of Photo 51, made by Rosalind Franklin in 1952. All the merit was taken by Watson, Wilkins and Crick, who in their speech receiving the Nobel Prize in Medicine did not even remember Rosalind. 175px-Photo_51_x-ray_diffraction_image.jpg en.wikipedia.org/wiki/Photo_51 youtube.com/watch?v=Vw8Wrr-ykFc
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youtube.com/watch?v=7efU0FPf8mU
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2 groups of 4 balls joined together in line, 4 groups of 3 balls also joined together. With these elements you have to try to build a tetrahedron. The pity is that without having it physically you can not try. (The balls are ping-pong balls joined with chopstick, and then painted imitating steel). tetra-01.jpg tetra-02.jpg tetra-03.jpg
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A lady in the street shouts: TAXIIIII !!! And the taxi driver sticks his head out the window and shouts: LADYYYYY !!!.
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CRYPTEX (made by me). It is made with PVC tubes, 4 tubes that fit inside each other, the outer discs, where the letters are, they have another disc inside with a notch, which in turn rotates on a third with a lateral opening, inside It fits another tube with screws that can only be removed if all the notches are aligned with the letters, which form the key (DAVID). criptex-04.jpg Idea taken from the movie Da Vinci Code: youtube.com/watch?v=IickXYkWkYc
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Thanks for posting @-DON- ______________________________________ Holy Week in Madrid (Spain): Cristo de los Alabarderos (Christ of Halberdier) cristo-alabarderos-01.jpg cristo-alabarderos-02.jpg cristo-alabarderos-03.jpg cristo-alabarderos-04.jpg cristo-alabarderos-05.jpg cristo-alabarderos-06.jpg