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| do you support the idea of inventing a machine that cleans the buildings by it self ? |
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| Do you support the idea of replacement workers wash buildings with a machine containing water sprinklers to wash the buildings and it works by solar cells?? |
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| do you support the idea of putting wipers in the machine ? |
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| is it worth it to lose a person's life in cleaning buildings and skyscrapers ? |
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| do you prefer the machine in sizes ? |
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| if you compare the cost of putting a person that cleans the building and paying him every month and the cost of this machine you'll figure out that the machine is much cheaper than a worker. |
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| do you support a machine that saves more water and it works by solar cells? |
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