In my own words · Warren, MI
Why I love lasers

- The light goes in one straight line and stays there.
- It can cut metal or read a disc.
- All the light waves are marching together.
You can love lasers in Warren.
What it really is
A laser makes light waves that all line up, so the beam stays tight.
Three things to try today
- Shine a flashlight and a laser pointer at a wall far away.
- Compare the size of the spots.
- Say why they are different.

For the grown-up reading this
Warren is one of the cities the Detroit–Warren–Dearborn, MI metro area is officially named after. Somewhere in that number is a kid who lights up about lasers and has never met another one.
Coherence explained with two spots on a wall. No equations needed.
If the kid who loves this is a girl
Read what one popular teacher said to one little girl who took out the classroom trash without being asked — and what that girl did with the rest of her life.
Love something else too
Near Warren
- Why I love lasers — Dearborn, MI
- Why I love lasers — Wyoming, MI
- Why I love lasers — Kentwood, MI
- Why I love lasers — East Lansing, MI
- Why I love lasers — Portage, MI
- Why I love lasers — Norton Shores, MI
- Why I love lasers — Detroit, MI
- Why I love lasers — Grand Rapids, MI
- Why I love lasers — Lansing, MI
- Why I love lasers — Flint, MI
Why I love lasers, everywhere in the US · All things to love · STEM jobs you could do · Summer camps in Warren







