Sentence examples for impurities from inspiring English sources

Sandpaper is typically made from silicate, with different impurities added depending on the hardness or coarseness of the sandpaper.

Lead is hard to date, but when it is mixed with other materials impurities emerge, at varying paces, as surface deposits; that can provide some clues about the history of a lead object.

Cook explained that until then it was "procured from the confectioners and fishmongers, which had been taken from stagnant ponds and noisome ditches; consequently those who partook of it imbibed the filthy impurities which it contained".

Manufacturers of electronic components love it because they can flood their fabrication tables with helium and it will prevent any other gases or impurities from lodging on the chips.

It also would make it easier to keep impurities at bay, as there will be fewer components to be kept sterile.

Most have put out snout-like siphons to feed, or rather to purge what impurities they had ingested in their adolescence on the city's tideflats.Along the strand, there are too few shorebirds: some solitary sandpipers, least timid of the waders, but that is it.

Such impurities find it impossible to gain a foothold within the Velcro-like lattices typical of electrostatic self-assembly.Technology Quarterly Hooked on lithium Inoculating the network Tinkerers' champion Nature's way of plating Making the connection Quantum leap for medicine More power to the thumb ARMs around the world Buggy whipped Watch this airspace A match for flash?

The drop-by-drop melting takes 12-14 houremovesoves impurities and strengthens the steel.

Unlike quartz, which contains impurities such as heavy metals which are released when it is heated, the silicon used to make the new racks is as pure as that used in the wafers being processed.

Many literally wash coal to remove some of the impurities before burning it.

The biggest consumer is the United States, where the wholesale price of a kilo of the stuff, even full of impurities, starts at $12,500.