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7 years ago
Parag Gupta added a comment to proposal Mini Elevated GreenTrains - complete transit solution - powered by green energy
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7 years ago
Parag Gupta voted for proposal Mini Elevated GreenTrains - complete transit solution - powered by green energy
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7 years ago
Parag Gupta added a comment to proposal Reducing non-exhaust pollution from transportation.
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7 years ago
Parag Gupta added a comment to proposal Blast from the Past: A Water-Powered Acetylene Engine
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7 years ago
Parag Gupta added a comment to proposal External Combustion, Closed loop Steam Engine
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7 years ago
Parag Gupta added a comment to proposal Mini Elevated GreenTrains - complete transit solution - powered by green energy
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7 years ago
Parag Gupta added a comment to proposal The Roller-coaster ("Rampways") : The Perfect Transportation System
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