Balloons
April 30, 2010 at 10:01 pm 1 comment
Graduation is in about a month~ and I saw on the news a few days ago that HECO was teaching kids at an elementary school that metallic balloons can cause power outages.
When metallic balloons fly up into power lines, the balloon may come into contact with the line at more than one point. Since the balloons have low resistance, charge flows easily and the current is high. The high-voltage lines can short-circuit, which causes the power outage. Certain types of ribbon can also cause short-circuiting. To prevent this from happening, balloons have weights tied to the end of the ribbon most of the time. The weight of the balloon weight is greater than the upward tension (caused by the balloon due to the low-density helium inside it).
This might not be too great for power lines:
Balloons! Have a song ~
I’ve always wanted to dress up in one of those costumes for Halloween. I love the huge gloves :D
Fish Leong!~
I can actually understand most of this one… O__o Haha. I like her voice :)
Entry filed under: Uncategorized. Tags: .

1.
yoshio11 | May 1, 2010 at 11:36 pm
her voice is really nice. she’s one of my favorite chinese singers :D
nice sparks