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
Land Use
Cities
Cities
Cities
The Present And Future Internet of Things For Sustainable Construction
lenrosen4
-
September 5, 2024
Cities
Shock Therapy Proposed By Northwestern University To Shore Up Shorelines
lenrosen4
-
August 31, 2024
Cities
Toronto Could Use An Astra Bridge
lenrosen4
-
May 15, 2024
Cities
Building Net-Zero Urban Centres Not Easy as Evidenced by the Story of Masdar City
lenrosen4
-
December 6, 2023
Cities
What Happens When Your City’s Water Supply is Compromised?
lenrosen4
-
October 23, 2023
Cities
In 2025 630 Million of Us Will Live in 37 Megacities
lenrosen4
-
March 6, 2013
0
Cities
Society and Politics in 2100 – Part 1: Speculations on a Very Different World
lenrosen4
-
February 24, 2013
0
Cities
Environment & Communications Update: The News from China
lenrosen4
-
January 17, 2013
0
Cities
Human Resolutions for Lifeboat Earth in 2013
lenrosen4
-
December 27, 2012
0
Cities
Urban Landscapes Update: A Developing World Solution to Urban Migration in the 21st Century
lenrosen4
-
December 10, 2012
1
Cities
A Personal Climate Change Update: Climate Change Adaptation Project Advises My City to Prepare for the Worst
lenrosen4
-
November 20, 2012
0
Automobiles
Gizmos and Gadgets – An Electric Car You Can Fold Up
lenrosen4
-
November 15, 2012
1
Biomass
Materials Science Update: The Plastic Problem and a Plastic Solution
lenrosen4
-
November 13, 2012
3
Artificial Intelligence
Climate Change Update: Rebuilding Staten Island, the Jersey Shore, Long Island and Lower Manhattan
lenrosen4
-
November 7, 2012
2
Cities
Headlines at 21st Century Tech for November 2, 2012
lenrosen4
-
November 2, 2012
3
Nations
Technology and Politics in the 21st Century – New Governance, New Micro Nations, New Experiments
lenrosen4
-
October 22, 2012
1
Cities
Urban Landscapes Update: Megacities Impose Health Challenge for Developing World
lenrosen4
-
October 16, 2012
1
1
...
18
19
20
...
22
Page 19 of 22
Most Read
Latest NASA Moon to Mars Planning Document Heavy on the Details with the Exception of Food
December 15, 2024
A New Clue To How Life First Emerged On Earth
December 14, 2024
COVID-19 News: A Nasal Spray Nano-Vaccine and New Long-COVID Research
December 12, 2024
Climate Change, RFK Jr., Agriculture and Food Security
December 11, 2024