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Rare Incan 'Calculators' Found in Peru

Science & Tech  (tags: ancient, archaeology )

- 1453 days ago -
Archaeologists working in Peru have discovered 25 well-preserved quipus, an ancient string-based device used to solve mathematical problems and to assist in record-keeping.

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Past Member (0)
Monday June 30, 2014, 5:54 pm
Very cool--never seen 1 before-thanks Marty

Maria Teresa Schollhorn (42)
Tuesday July 1, 2014, 1:47 am
Really interesting. Thanks Marty!

Jonathan Harper (0)
Tuesday July 1, 2014, 4:43 am

Past Member (0)
Tuesday July 1, 2014, 6:06 am
Interesting, but also if they used a base-10 positional system, wonder why some had 12 (astronomically speaking 13 periods of 4 weeks makes more sense than 12 months)?

Panchali Yapa (26)
Tuesday July 1, 2014, 11:33 am
Thank you

Birgit W (160)
Tuesday July 1, 2014, 6:03 pm

Nancy C (806)
Tuesday July 1, 2014, 6:43 pm
Used for tax obligations. Lets send some to all those Citizens United defenders. They may be able to count properly with these. Anyway, thanx Marty. Another fascinating artifact.

Jav R (0)
Tuesday July 1, 2014, 7:42 pm
Gracias por compartir. Muy intesante.

Nelson Baker (0)
Tuesday July 1, 2014, 7:56 pm
Noted. Interesting. Thank you.

Victoria Oakey (124)
Wednesday July 2, 2014, 12:56 am
Very interesting. Thank you for the information.

Alexandra G (250)
Wednesday July 2, 2014, 6:20 am
Thanks Marty for very interesting article

Panchali Yapa (26)
Wednesday July 2, 2014, 10:58 am
Thank you

Terry H (15)
Wednesday July 2, 2014, 3:10 pm
Thanks for posting Marty :)

Melania Padilla (122)
Thursday July 3, 2014, 4:09 pm
Interesting.... Weird... I donīt know! Thanks for posting

MmAway M (507)
Monday July 14, 2014, 10:19 pm
Smart @!@!
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