Karavansara

East of Constantinople, West of Shanghai


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Various disasters

The 15th of August looms closer, the countryside is deserted and wet under sudden showers that do nothing to lower the temperature, but only increase humidity.
And in the last two days we’ve been struck by a number of minor but painful catastrophes, so sorry if I am not updating the blog with “proper content”.

Please be assured that we are all fine, and nothing serious is going on.
It’s just that all our schedules and plans and things have been scrambled for good.

Hold on out there, we will hold on in here.


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World Cat Day

Today is the World Cat Day and this is the obligatory post about cats.
I am usually described as a cat person. Ever since I was two years old I never spent a single day in my life without a cat.
My house cats when I was in Turin, and after moving here beyond the black stump in Astigianistan, the community cats that have elected my courtyard as their playground/safe space/whatever.

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In the last few years the locals have also started to use this area of the village as the dumping ground for unwanted litters of kittens – and basically the feral cat population is growing steadily.
One of these days they’ll realize they are the majority, and will seize the power.
And it would be an improvement.

410dE5WkfyLAnyway, as we are at it, let me suggest a good book to you cat lovers out there.

The Cat Owner’s Manual covers everything you need to know about the maintenance and day-to-day operation of your cat. The book covers hardware, software and advanced options.
It was written by Dr David Brunner, a card-carrying veterinarian, and it’s both fun and useful. Because we need to take good care of our little feline overlords.

Have a nice World Cat Day.


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Spicing up the evolution of the mathematical sciences

Spices, mathematics, and trade routes.
Great article.

thonyc's avatarThe Renaissance Mathematicus

When we talk about the history of mathematics one thing that often gets forgotten is that from its beginnings right up to the latter part of the Early Modern Period almost all mathematics was developed to serve a particular practical function. For example, according to Greek legend geometry was first developed by the ancient Egyptians to measure (…metry) plots of land (geo…) following the annual Nile floods. Trade has always played a very central role in the development of mathematics, the weights and measures used to quantify the goods traded, the conversion rates of different currencies used by long distance traders, the calculation of final prices, taxes, surcharges etc. etc. A good historical example of this is the Islamic adoption of the Hindu place value decimal number system together with the associated arithmetic and algebra for use in trade, mirrored by the same adoption some time later by the Europeans…

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