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Curta mechanical calculator

Curta mechanical calculator

Curta mechanical calculator

The Curta is a small, hand-cranked digital mechanical calculator introduced by Curt Herzstark in 1948. It can be used to perform addition, subtraction, multiplication, division, and (with more difficulty) square roots and other operations.

The Curta’s design is a descendant of Gottfried Leibniz‘s Stepped Reckoner and Thomas‘s Arithmometer, accumulating values on cogs, which are added or complemented by a stepped drum mechanism. It has an extremely compact design: a small cylinder that fits in the palm of the hand.

Curtas were considered the best portable calculators available until they were displaced by electronic calculators in the 1970s.

I’ve actually used one of these devices. One of my first jobs was working for an importer of business machines and the Curta was just one of a number of mechanical calculators they had kept in their archive of previously held stock. As I recall it was an extremely impressive, solid and beautifully engineered piece of equipment.

Images via Technophilic Magazine, where you can find out more about this amazing device.

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Valentine's Day release

Via this isn’t happiness.

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Squaw on a motorcycle

Via Buamai.

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Alex H

Society Management model card for Alex H.

Via The English Group.

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Cattiva e-bike

Featuring a beautifully minimal steel frame, the Cattiva e-bike from Vrum is an assisted hybrid bike, powered by the very smart Bike+ hub from ZeHus.

Electrical assistance, optimally transferred to the road by the Cattiva design, gives you the extra boost you need for sprinting at traffic lights and racing up hills. When you need an extra push to take you to the next riding level, Cattiva helps you move faster and save your energy.

In this way, electrical power is basically used only when really useful and in general, much less than on a normal e-bike.

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Sorapot

Sorapot

Sorapot

Sorapot, by Joey Roth, is a simple, minimalist teapot made from investment cast stainless steel and borosilicate glass.

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Gisele Bundchen x Mert & Marcus

Gisele Bundchen in Death Valley for POP F/W 2001

Photographed by Mert & Marcus.

Styled by Katie Grand.

Via Android Ghost.

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Tumblr trauma

Tumblr trauma

A couple of randoms via one of my favourite Tumblr blogs, the ever eclectic Louxo’s Enjoyables.

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