Facebook
Linkedin
Twitter
Sign in
Join
AI
Computers
Education
Energy/Industry
Environment
Medical
Politics
Space
Transportation
Sign in
Welcome!
Log into your account
your username
your password
Forgot your password?
Create an account
Sign up
Welcome!
Register for an account
your email
your username
A password will be e-mailed to you.
Password recovery
Recover your password
your email
Search
Sign in
Welcome! Log into your account
your username
your password
Forgot your password? Get help
Create an account
Create an account
Welcome! Register for an account
your email
your username
A password will be e-mailed to you.
Password recovery
Recover your password
your email
A password will be e-mailed to you.
21st Century Tech Blog
AI
Computers
Education
Energy/Industry
Environment
Medical
Politics
Space
Transportation
Home
Environment
Land Use
Land Use
MEDICAL
Putting Fluoride In Community Water Supplies Is Being Questioned
lenrosen4
-
November 13, 2024
Agriculture
Satellite Monitoring Revolutionizes 21st Century Agricultural Practices
lenrosen4
-
September 26, 2024
Cities
The Present And Future Internet of Things For Sustainable Construction
lenrosen4
-
September 5, 2024
Industrial Technology
Electrified Thermochemical Reactor Could Revolutionize and Decarbonize Heavy Industry
lenrosen4
-
September 4, 2024
Cities
Shock Therapy Proposed By Northwestern University To Shore Up Shorelines
lenrosen4
-
August 31, 2024
Automobiles
In Pursuit of a Global Technical Society
lenrosen4
-
December 24, 2012
1
Climate Change Science
The Pursuit of the Millennium Still Drives So Many of Us – From Mayan Myths to Second Comings
lenrosen4
-
December 22, 2012
0
Agriculture
Climate Change Update: Three Environmental Challenges, Four Headlines
lenrosen4
-
December 18, 2012
1
Biomass
Gizmos & Gadgets: An Entry-Level Algae-to-Biomass Energy Harvester
lenrosen4
-
December 16, 2012
2
Environment
Space Update: Plants Don’t Seem to Mind Zero Gravity
lenrosen4
-
December 12, 2012
0
Cities
Urban Landscapes Update: A Developing World Solution to Urban Migration in the 21st Century
lenrosen4
-
December 10, 2012
1
Energy/Industry
Energy Update: A Wind Harvester Idea Worth Repeating
lenrosen4
-
December 8, 2012
4
Biomedical Engineering
Headlines at 21st Century Tech for December 7, 2012
lenrosen4
-
December 7, 2012
0
Air Transport Technology
Transportation Update: Going Where No Airplane Can Go – A New Hybrid Air Vehicle
lenrosen4
-
December 4, 2012
7
Agriculture
Water Update: We Look for it on Mars, Mercury, Vesta and the Moon – We Need it Here on Earth
lenrosen4
-
December 4, 2012
4
Agriculture
Climate Change Update: The Return of the Dust Bowl?
lenrosen4
-
December 1, 2012
3
Curing Illness
Headlines at 21st Century Tech for November 30, 2012
lenrosen4
-
November 30, 2012
0
1
...
85
86
87
...
95
Page 86 of 95
Most Read
Governments Spending $7 Trillion Annually To Subsidize Fossil Fuels
November 15, 2024
Putting Fluoride In Community Water Supplies Is Being Questioned
November 13, 2024
Once Again Global Action To Mitigate Climate Change Is At Risk
November 12, 2024
Canada Celebrates The End Of War Each November 11th
November 11, 2024
