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
uncategorized
uncategorized
Tech and Gadgets
Virtual and Augmented Reality Update: Apple Vision Pro and the Metaverse
lenrosen4
-
March 25, 2024
Energy/Industry
Can Where Seawater and Freshwater Meet Power the World?
lenrosen4
-
November 27, 2023
uncategorized
The Loss of our Sense of Smell and Taste from COVID-19 May Soon be a Thing of the Past
lenrosen4
-
October 18, 2023
Cities
Can Legacy Buildings Contribute to Climate Change Mitigation?
lenrosen4
-
March 13, 2023
Energy/Industry
Abandoned Mine Shafts Can Use Gravity to Turn Them Into Giant Batteries
lenrosen4
-
February 8, 2023
uncategorized
From Crowdfunding to Mega Funds: Capital for New Ideas is Abundant in the 21st Century
lenrosen4
-
July 17, 2018
0
uncategorized
Can Humans Colonize the Galaxy?
lenrosen4
-
June 28, 2018
0
uncategorized
First Utility Liquid Air Storage Plant Comes Online in Britain
lenrosen4
-
June 5, 2018
0
uncategorized
Orion Span Announces Hotel Rooms in Space for $792,000 US Per Night
lenrosen4
-
April 8, 2018
0
uncategorized
Gizmos & Gadgets: A Stormproof Umbrella Designed by a Dutch Windsurfer
lenrosen4
-
March 31, 2018
0
uncategorized
Throw Weight of Individual Space Program Providers from 35 to Plus 100,000 Kilograms
lenrosen4
-
March 16, 2018
0
uncategorized
Can Third-hand Smoke Increase Cancer Risk?
lenrosen4
-
March 11, 2018
0
uncategorized
European Space Agency Develops Air-Breathing Electric Thrusters for Low-Earth Orbiting Satellites
lenrosen4
-
March 6, 2018
0
uncategorized
Does Anyone Know the Role of NASA in the Future of Human Spaceflight?
lenrosen4
-
March 3, 2018
0
uncategorized
Two Universe Observations That Make Cosmology So Confoundingly Interesting
lenrosen4
-
February 26, 2018
0
uncategorized
Google Lunar XPrize Ends With No $30 Million Winners
lenrosen4
-
January 28, 2018
0
uncategorized
A New Theory for Life Beginning on Earth Looks at the Chemistry of our Planet Four Billion Years Ago
lenrosen4
-
January 24, 2018
0
1
2
3
...
20
Page 2 of 20
Most Read
Being A Gamer Can Produce Real-Life Skills That Transfer To The Job World
May 7, 2024
Plasma Propulsion May Make Trips To Mars Far Shorter
May 5, 2024
Need Help In Decarbonizing On A Personal Level? Read This
May 4, 2024
12,597 Satellites Orbited Earth At The End Of 2023 – Now There Are Far More
May 2, 2024