They would then remove the wax, leaving hollow tubes into which liquid metal – in their experiments they used silver – was injected and then cured.
Gold nanoparticles are added to the walls of the capsule during this process, and the silica particles are later dissolved in acid, leaving hollow capsules behind.
The printing method uses multiple kinds of gel-like "inks". After printing, the researchers remove one of the inks, leaving hollow tubes.
He catalogued the disappearing regional breads of France: the basket-woven gâche du Cotentin; the Alsatian pretzel; the four-fingered main de Nice; the ring-shaped couronne, left hollow by northeastern Huguenots, who objected to the Catholic habit of tracing the sign of the cross on their crusts, and made in Bordeaux with undulating edges, giving it the appearance of a ruff.
This cycle only continues to unfold and eventually, you are left hollow, begging your soul for answers.
And if left hollow after principal photography is done, he's got religion to make him feel like he belongs to something, to give him greater purpose.
Doubtful that he would echo the sentiments of his son, who said, "It's sad...but sadder still to consider what has happened to the city of Detroit, which has been left hollow by fleeing jobs and liberal social policies".
Is the internet actually good for us, or is it just like sitting on a thin raft, floating desolately on a quagmire of data, drunkenly buying things on eBay, left hollow and empty by our underwhelming Instagram likes?
We randomly selected 316 individual shrubs and scored the ant species that inhabited each plant, as defined by workers entering or leaving hollow thorns.
This fore plane had a slightly convex iron that removed saw and adz marks but left hollows that needed to be leveled by straight-iron planing.
