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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 ...
In 1964, NASA launched Echo II, a 40-metre (131 ft) diameter balloon constructed from a 9-micrometre (0.00035 in) thick mylar film sandwiched between two layers of 4.5-micrometre (0.00018 in) thick aluminium foil bonded together.
Beginning in the late 1970s, some more expensive (and longer-lasting) foil balloons made of thin, unstretchable, less permeable metallised films such as Mylar started being produced. These balloons have attractive shiny reflective surfaces and are often printed with color pictures and patterns for gifts and parties.
A Mylar balloon left about 4,000 people in Milwaukee County without power Friday afternoon, according to We Energies spokesperson Amy Jahns. We Energies crews located the balloon and are restoring ...
Mylar balloons can cause headaches for linemen in a couple of scenarios: They can get caught between and make contact with wires, or they can float directly into transformers. A cluster of ...
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 ...