Explore the past of cellular technology, and take a peek into its future.
Today approximately 63% of people in the world own cell phones. For many across the globe they are the primary device used to call and message others. But those of us around 30 years of age or older recall a time when all phones were landlines, connected to the walls of our kitchens and bedrooms, and messaging did not even exist. When and how did this transformation in communication take place, and how do mobile devices send and receive messages wirelessly?
The first call from a mobile phone was made in 1973, traveling through low-powered towers. Nearly 20 years later in 1992 the first text message (merry christmas) was sent through a much more developed cellular infrastructure. As cell phone technology improved and both messaging and calling from cellular phones has become increasingly popular, cell phone towers have sprung up across the globe. Without a cell tower to convert the radio waves sent by the phone into electromagnetic waves, our messages and calls would never be received.
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Also In The February 2019 Issue
The craft world and the tech world collide in this fun, hands-on activity.
A simple coding activity to create triangles in all shapes and sizes.
Five ideas to create that extra special gift for Valentine’s Day.
For twenty three years, since 1996, cars have used computers to control different parts of the car.
Celebrate Lunar New Year with your own custom-built lantern, complete with LEDs and micro:bit!
Synchronizing games with players from all around the world is no easy task.
A simple thought experiment sheds light on the dangers of AI. Can we stop the earth being buried in paperclips?
What do students really learn from robotics class? And how can we make it better?
Create a dynamic optical illusion in SketchUp.
Learn how rockets may soon be able to refuel in 0G. Next stop: Mars!
‘Files’ may be easy concepts for humans, but not for computers. What’s going on inside your operating system?
Two ways to play Minecraft with an overarching storyline. Experience the game like never before!
Helping kids fall in love with coding through Minecraft mods and Raspberry Pis.
Learn why this powerful, 40-year old language is still popular today.
A better, smoother way to direct your theatrical masterpiece.
Explore the past of cellular phone technology, and take a peek into its future.
How hackers can steal the messages you send over the internet, and how to tell if your communications are secure.
Add multimedia & more to your fantasy computer game to make it cooler than ever.
It’s not as simple as it seems. Can you solve this classic programming problem?
Ever wondered what happens when you connect to a website? Time to dive into the secrets of networking!
Links from the bottom of all the February 2019 articles, collected in one place for you to print, share, or bookmark.
Interesting stories about science and technology for February 2019.