Da Vinci might have selected different glaze recipes on purpose or he may have tweaked the painting over years during which time his taste in glaze ingredients could have changed.
Fires had been set to clear the spring stubble, and a thin glaze of smoke hung over the road in a steady cloud.
Leather bookbindings, pigments for paints and majolica (white-glazed pottery) all came from the East, although the Venetians never succeeded in imitating the perfect ruby glaze of Iznik pottery.
Glaze a building and make the glass transparent in the wintertime, opaque in the summer.
It probably never occurred to Native Americans hundreds of years ago to grill figs wrapped in Prosciutto (with a balsamic glaze).
The letter to the mayor's organization was opened by Mark Glaze, director of Mayors Against Illegal Guns, in Washington on Sunday.
The opinions expressed in this commentary are solely those of Mark Glaze.
Glaze is mostly translucent, but da Vinci would also slip in small amounts of pigments, such as manganese and lead oxides.
In others, as U.S. Senator Carl Levin described it his introduction to the "Stop the Tax Haven Act" in Feb. 2007, their eyes simply "glaze over" at the complexity of it all.
An artist was what he had really wanted to be, and he had simply transferred his painterly feelings to stroking the rich glaze on a shank of lamb, or dashing his signature in a passion-fruit coulis.
He added that his company, which is in the construction sector, would be helping to re-glaze the city of 1.1 million.
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The glaze is applied to a fired stoneware vessel, which is then fired again in a repeated cycle of six stages of heating and cooling where precise temperatures matter a great deal: either over- or under-firing will spoil the effect.
Several safety features have been included in the design, such as separate staircases for firefighters and blast-resistant glaze on the lobby glass.
The sidewalks of the town were gray in the early morning and at night, but the noon sun put a glaze on them, so that the cement burned and glittered like glass.
The second letter to the mayor was opened by Mark Glaze, director of Mayors Against Illegal Guns -- founded and co-chaired by Bloomberg -- in Washington on Sunday.
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