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A glass knife is a knife with a blade made of glass, with a fracture line forming an extremely sharp cutting edge. Glass knives were used in antiquity due to their natural sharpness and the ease with which they could be manufactured. In modern electron microscopy glass knives are used to make the ultrathin sections needed for imaging.
You can find other tips for caring for vintage Pyrex on the Corning Museum of Glass website.The site also offers instructions for using lye to salvage badly stained Pyrex, but only as a last ...
Stir rods are generally made of borosilicate (commonly known as Pyrex) glass or polypropylene plastic. They are usually between 10 and 40 centimeters in length and about half a centimeter in diameter. Glass rods are created from a single length of thin glass that is then cut into smaller segments.
A PYREX measuring cup manufactured c. 1980, featuring graduations in both U.S. and metric units. Pyrex (trademarked as PYREX and pyrex) is a brand introduced by Corning Inc. in 1915, initially for a line of clear, low-thermal-expansion borosilicate glass used for laboratory glassware and kitchenware.
If the recycled glass is not going to be made into more glass, or if the glass re-processor uses newer optical sorting equipment, separation by colour at the collection point may not be required. Heat-resistant glass, such as Pyrex or borosilicate glass , must not be part of the glass recycling stream, because even a small piece of such ...
Eventually, Pyrex began using tempered soda-lime opal glass to make its dishes instead of the much-stronger borosilicate glass, a change which made original Pyrex dishes even more valuable and ...
7. Repurpose glass jars. Glass jars from honey, jam, salsa or other condiments can be washed and reused as food containers. Clean the jars really well, and then soak them in hot water to remove ...
Glass cutter, showing hardened steel cutting wheel (far left), notches for snapping, and ball (on end of handle) for tapping. A glass cutter is a tool used to make a shallow score in one surface of a piece of glass (normally a flat one) that is to be broken in two pieces, for example to fit a window.