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Search
21st Century Tech Blog
Science, Technology and the Future
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Renewable
Solar Energy Technology Is Going “Perovskite”
lenrosen4
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January 18, 2025
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
-
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
Climate Change Science
Energy Update: No Limit it Seems to U.S. Oil Reserves Says Geological Survey
lenrosen4
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May 8, 2013
2
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
lenrosen4
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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
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Most Read
Energy Stories In the News That Caught My Attention
April 18, 2025
New Google AI Allows Humans To Have Conversations With Dolphins
April 16, 2025
Doctor Activism On Climate Sparks Canadian Election Letter-Writing Campaign
April 15, 2025
Science Without The Humanities In College Is Poor Education
April 14, 2025
