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21st Century Tech Blog
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Solar Energy
A New Look At The Viability Of Solar Roads
lenrosen4
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November 4, 2024
Energy/Industry
Solar Energy is Popping Up in Some Very Unusual Places
lenrosen4
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April 17, 2024
Energy/Industry
Alberta Company Believes It Has Game-Changing Geothermal Technology
lenrosen4
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February 7, 2024
Energy/Industry
The World Based On 2023 Results May Be On The Way to Exceed COP28 Renewable Energy Targets
lenrosen4
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January 22, 2024
Energy/Industry
Nikola Tesla’s Energy Theory Using The Power Of Flowing Water And Its Unfulfilled Promise
lenrosen4
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January 13, 2024
Agriculture
Headlines at 21st Century Tech for May 3, 2013
lenrosen4
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May 3, 2013
1
Climate Change Science
Climate Change Update: Follow the Keeling Curve on Twitter
lenrosen4
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May 2, 2013
1
Cities
Society and Politics – Part 4: Getting Change Done
lenrosen4
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May 1, 2013
1
Energy/Industry
Gizmos & Gadgets: New Solar Powered Window Outlet
lenrosen4
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April 30, 2013
2
Biomass
Gizmos & Gadgets: A Fuel Cell That is Powered by Cook Stove Fires
lenrosen4
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April 30, 2013
0
Artificial Intelligence
The 10 Breakthrough Technologies of 2013 According to MIT Technology Review
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April 25, 2013
0
Energy/Industry
Gizmos & Gadgets: A New Kinetic Flywheel – Real or Hoax?
lenrosen4
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April 15, 2013
7
Biomass
Energy Update: More Hydrogen Breakthroughs in the News
lenrosen4
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April 9, 2013
2
Industrial Technology
Gizmos & Gadgets: New Solar-Powered 3D Printer Converts Desert Sand to Glass
lenrosen4
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April 7, 2013
0
Energy/Industry
Energy Update: New Organic Solar Cell Mimics What Plants Do But Conversion Efficiency Needs to Improve
lenrosen4
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April 4, 2013
0
Automobiles
Energy Update: Barrier to Cheap Fuel Cells Broken in Calgary
lenrosen4
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April 1, 2013
3
Energy/Industry
U.S. President Proposes to Spend $2 Billion on Clean Energy Research
lenrosen4
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March 16, 2013
4
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