I saw Up yesterday and it is a fantastic movie, but as the house was drifting across the city, I was distracted by the thought "I wanna see Jamie and Adam try this
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One website says that Helium has a lifting power of 0.0640 lb/ft3. You do need to take in to account the density of the air, colder air is more dense so you'll get a little more lifting power in the winter of north Canada than you would in the summer in Egypt. You also have to take in to account the weight of the balloons holding the Helium. Given the huge number needed that won't be insubstantial, probably would be better off using a smaller number of weather balloons.
Of course you'd have to attach the balloons to the bottom of the house. Most houses are designed to resist gravity, not be picked up by their roofs. :)
Here's a link to the wikipedia page about airship USS Akron it says the airship had a useful load of 83 tons.
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Of course you'd have to attach the balloons to the bottom of the house. Most houses are designed to resist gravity, not be picked up by their roofs. :)
Here's a link to the wikipedia page about airship USS Akron it says the airship had a useful load of 83 tons.
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