hazardous—such as an electrical component, chemical product, unknown substance, or damaged equipment—don’t experiment with it just to figure out what it is.
Our Eyes Can Fool Us
Visual perception isn’t simply a camera recording everything in front of us.
Your brain interprets what you see and uses previous experience to fill in information.
That’s useful because it allows you to recognize objects quickly.
But it also means that two similar objects can fool you into thinking they’re the same.
Sometimes, what you don’t notice is more important than what you