One warning light that needs immediate attention is a red circle with an exclamation mark. This symbol is the brake warning ...

When your battery charge falls below 10%, Windows may display this symbol to alert you to plug in your charger soon. This warning helps prevent unexpected shutdowns by reminding you to connect ...

Michael Rosen exclaims excitedly over exclamation marks with Dr Florence Hazrat, who has a passion for them. In Word of Mouth they explore the history behind the first symbol to indicate emotion.

“I was mostly looking for a symbol that wasn’t used much,” he told Smithsonian. “And there weren’t a lot of options—an exclamation point or a comma. I could have used an equal ...