When wind started whipping up, Francis took off his skull cap, letting the breeze tussle his hair.

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The recording electrodes can be carried by a skull cap, and nothing has to penetrate the skin.

ECONOMIST: Bionics (I)

At the end of the two-hour Mass, Francis took off his red vestments, leaving only the white cassock and skull cap, and climbed into an open-topped popemobile to circle through the enthusiastic crowd.

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Mullah Mairbek Yusupov is a small bearded man dressed in a green surgeon-style top and skull-cap.

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The CheckLight itself is composed of two parts: a sensor device built by mc10 and skull-cap made by Reebok.

ENGADGET

The CheckLight itself is comprised of two parts: a sensor device built by mc10 and skull-cap made by Reebok.

ENGADGET

Only later did his measurements show that the skull-cap was from a new transitional species, pithecanthropus erectus, the upright ape-like man.

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On January 7th, he dutifully donned a black skull-cap for a reverential photo-opportunity with Rabbi Ovadia Yosef, spiritual leader of the powerful Shas party.

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He would say Kaddish for her on her death day, and on his first visit to Auschwitz, in 1983, he slipped away to kneel in the grass among the barracks, in his archiepiscopal robes with his scarlet skull-cap, and cry.

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And, as in any convertible, it will make you think twice about wearing a baseball cap, lest it gets whipped off your skull at speed.

FORBES: Overview