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2. Mylar balloon (geometry) - Wikipedia

   en.wikipedia.org/wiki/Mylar_balloon_(geometry)

   Perhaps counterintuitively, the surface area of the inflated balloon is less than the surface area of the circular sheets. This is due to physical crimping of the surface, which increases near the rim. "Mylar balloon" is the name for the figure given by W. Paulson, who first investigated the shape. The term was subsequently adopted by other ...

3. Metallised film - Wikipedia

   en.wikipedia.org/wiki/Metallised_film

   Metallised films used for balloons. Metallised films were first used for decorative purposes as Christmas tinsel, [1] and continue to be used for items such as wrappers, ribbons, and glitter. Metallic helium-filled novelty balloons given as gifts are made of metallised BoPET and often called Mylar balloons commercially.

4. A 7-year-old girl died playing with a popped balloon. Now her ...

   www.aol.com/news/7-old-girl-died-playing...

   Kelly explained that for Alexandra's birthday, she bought a 34-inch foil balloon, along with about 10 latex balloons. "As a parent I was always aware of the choking hazard of latex balloons, but ...

5. Polyethylene terephthalate - Wikipedia

   en.wikipedia.org/wiki/Polyethylene_terephthalate

   Biaxially oriented PET (BOPET) film (including brands like "Mylar") can be aluminized by evaporating a thin film of metal onto it to reduce its permeability, and to make it reflective and opaque . These properties are useful in many applications, including flexible food packaging and thermal insulation (such as space blankets ).

6. The Problem with Birthday Balloons No One Talks About - AOL

   www.aol.com/problem-birthday-balloons-no-one...

   The post The Problem with Birthday Balloons No One Talks About appeared first on Reader's Digest. If you think that balloons are just a bit of harmless fun, think again. Find out the serious risks ...

7. PNM shares tips for safety around Mylar balloons this ... - AOL

   www.aol.com/news/pnm-shares-tips-safety-around...

   Feb. 12—The Public Service Company of New Mexico has released a reminder to keep Mylar balloons away from power lines this Valentine's Day. "Mylar balloons are made of metallic materials that ...