In the plant's control room, Penrice's workers watch crystals form on the outside of a vacuum-drum filter.
Another downside of DEET is that it can damage synthetics, plastics, furniture, leather, painted surfaces and watch crystals, so you don't want to spray it indiscriminately near certain objects or clothes.
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Did you ever have to do that experiment at school where you watched crystals form in a saturated solution?
THE thrill of chemistry used to come from watching crystals grow, potions bubble and change colour, and innocuous mounds of white powder sublime unexpectedly away leaving only a nasty niff behind.
It's best to have just one ring per hand and no reflective accessories such as watches, crystals, diamonds.
A package arrives from Devon, containing a letter from Esmé, with a note from her little brother, who is learning to spell — "HELLO HELLO HELLO HELLO HELLO HELLO HELLO HELLO HELLO HELLO LOVE AND KISSES" — and, wrapped in tissue, her father's watch, its crystal smashed, time stopped.
Increasingly, says Kent Murdock, its chief executive, companies want to give Rolex watches or crystal knick-knacks to reward special performance.
Using a powerful electron microscope to watch the crystals form, he realised that he could manipulate their precipitation by interrupting the heat treatment.The strongest aluminium alloys have particularly fine precipitates that are widely distributed in tiny clusters.
