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21st Century Tech Blog
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The Present And Future Internet of Things For Sustainable Construction
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September 5, 2024
Cities
Shock Therapy Proposed By Northwestern University To Shore Up Shorelines
lenrosen4
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August 31, 2024
Cities
Toronto Could Use An Astra Bridge
lenrosen4
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May 15, 2024
Cities
Building Net-Zero Urban Centres Not Easy as Evidenced by the Story of Masdar City
lenrosen4
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December 6, 2023
Cities
What Happens When Your City’s Water Supply is Compromised?
lenrosen4
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October 23, 2023
Cities
In 2025 630 Million of Us Will Live in 37 Megacities
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March 6, 2013
0
Cities
Society and Politics in 2100 – Part 1: Speculations on a Very Different World
lenrosen4
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February 24, 2013
0
Cities
Environment & Communications Update: The News from China
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January 17, 2013
0
Cities
Human Resolutions for Lifeboat Earth in 2013
lenrosen4
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December 27, 2012
0
Cities
Urban Landscapes Update: A Developing World Solution to Urban Migration in the 21st Century
lenrosen4
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December 10, 2012
1
Cities
A Personal Climate Change Update: Climate Change Adaptation Project Advises My City to Prepare for the Worst
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November 20, 2012
0
Automobiles
Gizmos and Gadgets – An Electric Car You Can Fold Up
lenrosen4
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November 15, 2012
1
Biomass
Materials Science Update: The Plastic Problem and a Plastic Solution
lenrosen4
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November 13, 2012
3
Artificial Intelligence
Climate Change Update: Rebuilding Staten Island, the Jersey Shore, Long Island and Lower Manhattan
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November 7, 2012
2
Cities
Headlines at 21st Century Tech for November 2, 2012
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November 2, 2012
3
Nations
Technology and Politics in the 21st Century – New Governance, New Micro Nations, New Experiments
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October 22, 2012
1
Cities
Urban Landscapes Update: Megacities Impose Health Challenge for Developing World
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October 16, 2012
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