Mythbusters took 3500 to lift a 44 pound girl. So 12k should do it.
Hydrogen technologies are technologies that relate to the production and use of hydrogen. Hydrogen technologies are applicable for many uses.
Some hydrogen technologies are carbon neutral and could have a role in preventing climate change and a possible future hydrogen economy. Ballooning
A toy balloon is a small balloon mostly used for child play, party decoration, and advertising.
Toy ballons are usually made of rubber or aluminized plastic, and inflated with air or helium. They come in a great variety of sizes and shapes, but are most commonly 10 to 30 centimetres in diameter. Pound
In journalism, a human interest story is a feature story that discusses a person or people in an emotional way. It presents people and their problems, concerns, or achievements in a way that brings about interest, sympathy or motivation in the reader or viewer.
Human interest stories may be "the story behind the story" about an event, organization, or otherwise faceless historical happening, such as about the life of an individual soldier during wartime, an interview with a survivor of a natural disaster, a random act of kindness or profile of someone known for a career achievement.