Neon is a gas. It is in the air. You cannot see it. You cannot smell it. But you can trap it in a tube. If you run electricity through the tube, the neon glows.
Photo Credit: Stefano Politi Markovina/Alamy Stock Photos
In the Know
What Is Infrastructure?
You hear the word infrastructure in the news. But what … read more
In the Know
Animal Hearts
What is a heart? It isn’t just a shape. A … read more
In the Know
National Poetry Month
April is National Poetry Month. Some United States Presidents love … read more