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Search
21st Century Tech Blog
Science, Technology and the Future
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Energy/Industry
Renewable
Renewable
Energy/Industry
Perovskite Photovoltaics Leaving Silicon In The Dust
lenrosen4
-
May 30, 2025
Energy/Industry
Perovskite Solar: The Technology That’s Changing How We Power Small Devices
lenrosen4
-
May 28, 2025
Renewable
Solar Energy Technology Is Going “Perovskite”
lenrosen4
-
January 18, 2025
Solar Energy
A New Look At The Viability Of Solar Roads
lenrosen4
-
November 4, 2024
Energy/Industry
Solar Energy is Popping Up in Some Very Unusual Places
lenrosen4
-
April 17, 2024
Climate Change Science
Climate Science and Energy Update: 13 Actions Our Governments Must Take
lenrosen4
-
June 11, 2012
0
Energy/Industry
Energy Update: Advances in Energy Storage Technology
lenrosen4
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June 6, 2012
0
Energy/Industry
Energy Update: Inventor to Demonstrate He Can Generate Electricity from Air in Defiance of the Laws of Thermodynamics
lenrosen4
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June 3, 2012
8
Energy/Industry
Energy Update: Germany has reached a Milestone in Renewable Energy
lenrosen4
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June 2, 2012
2
Cities
Urban Landscapes Update: How One City is Changing the Power Mix and its Carbon Footprint
lenrosen4
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May 29, 2012
0
Nuclear
Space and Humanity in the 21st Century: Part 8 – Technology to Get us from Here to There a Lot Faster
lenrosen4
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May 29, 2012
0
Renewable
Energy Update: Can We Build a Solar Cell That Works Like a Plant?
lenrosen4
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May 28, 2012
0
Climate Change Science
Energy Update: Are Wind Farms Contributing to Global Warming? – Sorting the Fact from the Fiction
lenrosen4
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May 9, 2012
0
Biomass
Energy Update: Venture Partner Puts Money into Waste-to-Energy Projects
lenrosen4
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May 1, 2012
0
Cities
Urban Landscapes, Geoengineering and Energy Update: Things You Can Do with Paint
lenrosen4
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April 27, 2012
0
Energy/Industry
Energy Update: Wind Power Technology Breakthrough Produces Byproduct – Water
lenrosen4
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April 21, 2012
0
Cities
Energy Update: Why isn’t Solar Taking Off?
lenrosen4
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April 18, 2012
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