Thumb Calendar

Dec 17

Mathematics Add comments

I’m going to start carrying one of these around. Very cool!

See it here:

and here:

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written by SplineGuy

C.C. Almon Says:
December 18th, 2007 at 8:02 am
That’s pretty nifty!
GranddadDY Says:
January 1st, 2008 at 8:55 am
I found some 40 and 50 year calendars made of metal and about 2″ in diameter at:
http://www.klockit.com/products/product.aspx?sku=DDDDR&tab=
GranddadDY Says:
January 1st, 2008 at 8:56 am
Those are not OR gates, they are adders (which reminds me of another story)
Natural Blogarithms » Cool Calendar 2 Says:
January 1st, 2008 at 10:41 am
[…] the last couple weeks I posted a link to a nifty little calendar that you can print and have all the months of the year on the front and back of a business card […]
jessie Says:
January 2nd, 2008 at 8:15 pm
hi scott,

this is very interesting… i’ve seen something like this in the possession of my grandfather but i was too young to appreciate it’s value back then.

Natural Blogarithms