Among the features that will be looked at most carefully are its flexible, relatively thin, seven-inch-thick mirror and an enclosure that is of a piece with the telescope itself and rotates to change views of the sky.
2.
As for adhesive : I glued a large 1 / 4-inch thick mirror to the wall with 3M glue and it came off, broke into 1000-pieces, wrote 3M and got the $ $ $ for a new mirror.
3.
While mirrors remained their primary business, Saint-Gobain began to diversify their product line to include glass panes for skylights, roofs and room dividers, thick mirrors, semi-thick glass for windows, laminated mirrors and glass, and finally embossed mirrors and window panes.
मोबाइल