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21st Century Tech Blog
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Transportation
Page 24
Transportation
Cities
On-Demand Transit May Be Perfect Solution for Smaller Cities and Towns
lenrosen4
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May 17, 2017
2
Automobiles
On the Eve of the 80th Anniversary of the Hindenburg Fire We Look at the Current State of Hydrogen as an Alternative Fuel
lenrosen4
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May 5, 2017
1
Electric Vehicles
Gizmos & Gadgets: Zinc-based Battery May be the Breakthrough to Make Electric Vehicles Ubiquitous
lenrosen4
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April 30, 2017
0
Air Transport Technology
Air Turbulence and CO2 Level Increases in the Atmosphere
lenrosen4
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April 7, 2017
0
Space
Flight Proven Rockets Revolutionizing Space Flight
lenrosen4
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April 5, 2017
0
Agriculture
The Math to Keep Global Mean Temperatures from Rising More Than 2 Degrees Celsius
lenrosen4
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April 3, 2017
0
Agriculture
The Challenge of the 21st Century – Reflections on 2,000 Postings to this Blog Site
lenrosen4
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March 28, 2017
0
Air Transport Technology
Latest Laptop Ban on Flights from Middle East and African Origins May Create Fire in the Hold Threat
lenrosen4
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March 22, 2017
0
Air Transport Technology
CO2 from Aircraft Only One Part of the Industry’s Greenhouse Gas Problem
lenrosen4
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March 18, 2017
0
Energy/Industry
Gizmos & Gadgets: Rotor Sails on Tankers and Cruise Ships will Harvest Wind, Save Fuel and Reduce Emissions
lenrosen4
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March 16, 2017
0
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