Normal balloons lose Helium right through rubber, since Helium is such a small atom. The mylar isn't as porous to Helium, so the balloons last much longer.
Party fun: inhale Helium and say some of the lines the little Martians in Toy Story said:
"A stranger! From the outside!" "I have been chosen!" "Fair well my friends! I go on to a better place!"
Jeff Pidgeon, who did the voice, used Helium during the recording sessions.
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Date: 2010-05-07 08:10 pm (UTC)Party fun: inhale Helium and say some of the lines the little Martians in Toy Story said:
"A stranger! From the outside!"
"I have been chosen!"
"Fair well my friends! I go on to a better place!"
Jeff Pidgeon, who did the voice, used Helium during the recording sessions.