April, 2013.

Paper abstract bibtex

Paper abstract bibtex

This is a lego replica of the mechanical calculator called Pascaline, invented by Blaise Pascal in 1642. This version has 6 number positions, all decimals, and can add multiple terms until 999,999, it can also subtract by means of 9's complement. In this video I made the following operations: 985 + 547 = 1,532 1,532 + 9,724 = 11,256 zeroing 2,753 - 847 = 1,906 1,906 - 956 = 950 It works exactly like the original models built by Pascal, with two differences: - since there are no 10 teeth lego gear, I used the 20 teeth model, which means that the mechanism 'counts two teeth' for each number. - the input dials of the real Pascaline allowed the user to dial the numbers, much like older phones, but since I don't have any lego parts which can mimic that, the input is more difficult: the operator has to count positions to enter the numbers. The last images show details of the centerpiece of the Pascaline's carry mechanism: the sautoir. Thanks for youtube user Nico71 for inspiring this work.

@misc{noauthor_lego_2013, title = {Lego {Pascaline} by {thiagoT5}}, url = {http://www.youtube.com/watch?v=olfNFXJEZOA&feature=youtube_gdata_player}, abstract = {This is a lego replica of the mechanical calculator called Pascaline, invented by Blaise Pascal in 1642. This version has 6 number positions, all decimals, and can add multiple terms until 999,999, it can also subtract by means of 9's complement. In this video I made the following operations: 985 + 547 = 1,532 1,532 + 9,724 = 11,256 zeroing 2,753 - 847 = 1,906 1,906 - 956 = 950 It works exactly like the original models built by Pascal, with two differences: - since there are no 10 teeth lego gear, I used the 20 teeth model, which means that the mechanism 'counts two teeth' for each number. - the input dials of the real Pascaline allowed the user to dial the numbers, much like older phones, but since I don't have any lego parts which can mimic that, the input is more difficult: the operator has to count positions to enter the numbers. The last images show details of the centerpiece of the Pascaline's carry mechanism: the sautoir. Thanks for youtube user Nico71 for inspiring this work.}, urldate = {2013-12-09}, month = apr, year = {2013}, }

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