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2. Postage stamps and postal history of the United States

   en.wikipedia.org/wiki/Postage_stamps_and_postal...

   In February 1861, a congressional act directed that "cards, blank or printed. . .shall also be deemed mailable matter, and charged with postage at the rate of one cent an ounce." Private companies soon began issuing post cards, printed with a rectangle in the top right corner where the stamp was to be affixed. (The Post Office would not produce ...

3. Mobile phone accessories - Wikipedia

   en.wikipedia.org/wiki/Mobile_phone_accessories

   They are distinct from holsters, in allowing use of the device while in the case, but in many instances include a belt clip or other device giving it the functionality of a holster. They are made of plastic, rubber, silicone, leather, or adhesive-backed vinyl pieces. Vinyl material may be calendered or cast, with the latter being more expensive.

4. Corrugated fiberboard - Wikipedia

   en.wikipedia.org/wiki/Corrugated_fiberboard

   Corrugated board. Corrugated fiberboard, corrugated cardboard, or corrugated is a type of packaging material consisting of a fluted corrugated sheet and one or two flat linerboards. [ 1] It is made on "flute lamination machines" or "corrugators" and is used for making corrugated boxes. The corrugated medium sheet and the linerboard (s) are made ...

5. Pressure-sensitive adhesive - Wikipedia

   en.wikipedia.org/wiki/Pressure-sensitive_adhesive

   Pressure-sensitive adhesive ( PSA, self-adhesive, self-stick adhesive) is a type of nonreactive adhesive which forms a bond when pressure is applied to bond the adhesive with a surface. No solvent, water, or heat is needed to activate the adhesive. It is used in pressure-sensitive tapes, labels, glue dots, stickers, sticky note pads, automobile ...

6. Leaked Microsoft documents hint at new Doom and ... - Engadget

   www.engadget.com/leaked-microsoft-documents-hint...

   Tue, Sep 19, 2023 · 1 min read. Charley Gallay/Getty Images for Bethesda Softworks. Bethesda's roadmap for the fiscal years starting in 2020 and ending in 2024 has made its way online as part of ...

7. Adhesion - Wikipedia

   en.wikipedia.org/wiki/Adhesion

   Adhesion is the tendency of dissimilar particles or surfaces to cling to one another. ( Cohesion refers to the tendency of similar or identical particles and surfaces to cling to one another.) The forces that cause adhesion and cohesion can be divided into several types.