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21st Century Tech Blog
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Industrial Technology
Mining
Mining
Mining
Ocean Floor Polymetallic Nodules Threatened By Deep Sea Miners Serve An Existential Purpose
lenrosen4
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July 23, 2024
Climate Change Science
Sustainable Coal is a Fiction Being Peddled by Coal Producers and Their Customers
lenrosen4
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November 25, 2023
Mining
On The Ocean Front Part 2: Our Pursuit Of A Low-Carbon Future May Have Destructive Consequences
lenrosen4
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July 31, 2023
Mining
The Reality Of Deep Sea Mining Is Getting Closer As Are The Consequences
lenrosen4
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March 16, 2023
Mining
The Dream of Space Mining Remains Illusory at Present
lenrosen4
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February 20, 2023
Energy/Industry
Abandoned Mine Shafts Can Use Gravity to Turn Them Into Giant Batteries
lenrosen4
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February 8, 2023
2
Mining
Understanding the Role of Critical Minerals in the Renewable Energy Transition
lenrosen4
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January 14, 2023
0
Computers
In the Present and Future Can We Save Our Environment From E-Waste?
lenrosen4
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March 28, 2020
0
Biomedicine
Gizmos & Gadgets: New Imaging Device Continuously Monitors Our Brains Unlike MRI, CT, and PET Scans
lenrosen4
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March 14, 2020
0
Electric Vehicles
Gizmos & Gadgets: Does Lithium-Ion Have a New Rival in the Battery Business?
lenrosen4
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March 8, 2020
0
Industrial Technology
How to Make the Steel Industry Cleaner in the 21st Century
lenrosen4
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January 31, 2020
0
Industrial Technology
Europe’s Space Agency Develops a Way to Manufacture Oxygen from Moondust
lenrosen4
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January 23, 2020
0
Artificial Intelligence
Thinking of Becoming an Engineer? Look at These Seven Areas Where Future High Demand is Forecasted
lenrosen4
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November 13, 2019
0
Environment
Which is More Important – Mining Tantalite in the Congo for Cellphones or Saving the Gorillas That Die Because of This Activity?
lenrosen4
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October 3, 2019
0
Mining
Europe’s Eyes on the Moon are Focused on 2025 – Why?
lenrosen4
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January 22, 2019
0
Mining
A Conversation with George Sowers of Sowers Space Solutions
lenrosen4
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November 30, 2018
0
Computers
The Internet Has a Growing Carbon Footprint That Could Become as Large as That of the Transportation Sector
lenrosen4
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November 16, 2018
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