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21st Century Tech Blog
Science, Technology and the Future
AI
Computers
Education
Energy/Industry
Environment
Medical
Politics
Space
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Transportation
Transportation
Artificial Intelligence
What Happens to Navigation When GPS and a Map Are Unavailable
lenrosen4
-
April 10, 2025
Electric Vehicles
China’s BYD For The Top Includes New EV Batteries That Recharge In Five Minutes
lenrosen4
-
March 24, 2025
Electric Vehicles
The Two-Wheeled EV Market Focuses On Transportation Needs For The Global South
lenrosen4
-
March 9, 2025
Climate Change Science
Has Climate Change Made Commercial Flight More Problematic?
lenrosen4
-
February 25, 2025
Climate Change Science
The Earth’s Rate of Warming in the 21st Century is 0.2 Celsius per Decade
lenrosen4
-
December 19, 2024
Electric Vehicles
Lithium-Metal Solid State Battery Developed at Harvard University
lenrosen4
-
May 27, 2021
0
Electric Vehicles
Solving the EV Recharge Issue: Build Roads That Power Vehicles as They Move
lenrosen4
-
May 26, 2021
0
Commercial Flight
What’s Holding Back the Dawn of Electric-Powered Commercial Aviation?
lenrosen4
-
May 24, 2021
1
Electric Vehicles
The Journey to a 1,000 Mile Between Charges Electric Vehicle
lenrosen4
-
April 9, 2021
1
Business/Government
Ontario’s Mass Transit Provider Metrolinx Gives Up on Hydrogen Hydrail Alternative to Current Diesel-Powered Train Network
lenrosen4
-
March 13, 2021
0
Automobiles
Comparing the Lifecycle Emissions of Internal Combustion Engine and Electric Vehicles
lenrosen4
-
March 2, 2021
0
Artificial Intelligence
NASA in the Spotlight Tomorrow with Seven Minutes of Terror Martian Landing to be Viewed Live
lenrosen4
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February 17, 2021
0
Space
Reusable Rockets and Capsules Now Part of NASA’s Human Space Program
lenrosen4
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June 17, 2020
0
Artificial Intelligence
How Smart Cities Can Defend Against Pandemics
lenrosen4
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June 11, 2020
0
Environment
Will Viruses Aboard Lead to the Death of Cruise Lines? The Jury is Out
lenrosen4
-
June 7, 2020
0
Nations
The Wrong Message Clouds SpaceX-NASA’s Latest Achievement
lenrosen4
-
June 2, 2020
0
Space
Elon Musk’s Vision for a City on Mars Led to Today’s SpaceX’s Human Mission to the International Space Station
lenrosen4
-
May 27, 2020
0
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Energy Stories In the News That Caught My Attention
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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
