Carlos Domingo - Un poco de todo

The above “couch-potato” is the image of the blog of Meevee, a startup that is trying to solve the problem of what to see on TV in a world with IPTV, cable, Internet TV and YouTube and its millions of clones. The site is pretty cool and useful (not working for European countries at the moment though) and the problem they are tackling a huge and interesting one but their choice of the couch potato image (specially that underwear…) a very questionable one.

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Profesor Watanabe has finalized his method for efficiently index and provide an index number to each Sudoku problem (I wrote about a discussion with him on the topic I had last summer here). The number of different Sudoku problems (and solutions since each problem has only one solution, the reason why it is so interesting) is 6,670,903,752,021,072,936,960 and it was already discovered in 2005 by Bertram Felgenhauer and Frazer Jarvis and now what Watanabe-sensei has discovered is how to efficiently assign a number to each Sudoku problem, a task that obviously cannot be done efficiently looking at each solution due to the huge amount. You can see and try their method here.

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Have a look at the video above (courtesy to yet another new video based UGC startup that is going to eat Gootube, the 137th by my latest count) and you will be amazed at how that 2 year old kid is using Flickr. When I was young (but admitedly, not that young) I played with my ZX81 and later my loved Sinclair Spectrum, kids now use Web 2.0 apps, pretty cool.

This video came via Fer Martin´s blog.

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