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A comment on Amazon Is Now Worth More Than Wal-Mart. Parent comment

Re:Amazon Is Now Worth More Than Wal-Mart by kalleboo on Saturday July 25, 2015 @05:48AM (#9947129)
To power drones, presumably. You have the example of Tata's compressed-air car prototype http://www.business-standard.com/article/companies/cars-runn...

Although I suspect a compressed air tank with enough capacity would be way too heavy for a drone to carry.

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Re:Amazon Is Now Worth More Than Wal-Mart by andyidsinga on Saturday July 25, 2015 @02:12PM (#9948427)
yes - that's the type of thing I'm talking about. I've heard of taxi's running on compressed air motors in dense urban environments ..maybe NYC?.

The power to weight ratio is the key issue. Also -- noise could be an issue too -- want to have quiet deliveries.

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