@manan-543

U made it so easy to understand. Especially with that cardboard prop. And Ur excitement and passion for the topic is another great touch. It kept me engaged the entire way. Same for the longer videos. Both of u are very passionate. If schools had teachers like y'all more kids would be interested in science

@ElkGiu

Damn, putting retroreflective stickers on the back of the headrests is brilliant! I hope people will realize they can regulate the car light heights and avoid blinding other drivers...

@TinTin-fq5id

When you're so excited to talk about a topic, you trip over your own tongue. Very relatable.😂
I vaguely knew that those signs, etc, worked like that, but I never understood precisely why. Learned something new, thanks!😊

@notconvincedgranny6573

So this is what I need in my car for the clowns with the LED lights who want to tailgate...

@AdamOlivero

Great explainer! You guys always rock in explaining science and especially everyday science and how it affects our lives. Thank you!

@berttroubleyn3475

It's hard not to be dragged along in your enthusiasm and excitement, plus the content is genuinely interesting. Top marks from me!

@davetoms1

Love the excitement! It IS exciting!

@Nolen_Sorento

3m has a proprietary process on how to produce this material. They are fairly secreticive about it.

@Hotaru9

I gotta do this in my car too

@Sk8rToon

Can we put retro reflectors on the back of cars so people with high beams on KNOW IT

@ALMX5DP

Isn’t there also a very slight angle change engineered in since you don’t always want the light to go back directly to the source, but rather to a vehicle operators eyes that are set back or up from where the headlights would be?

@jer103

1. I've always wanted to know what this was called, and now I do: retroreflectivity 
2. I always thought it was cool that a road sign would reflect light back like a prism.
3. If you were a kid in the 80's, there were retroreflective stickers. They use to make 3d stickers with this technology.

@naut_nigel

I learned something today thanks ❤

@jimmartin156

Like the reflectors on bycicles and other road vehicles.

@redstonefan8711

I love these reflectors

@kierstynsaoirse

very well explained thank you sir

@davesatxify

this helps me understand why scishow space made a point of stating apollo left Retro-reflectors on the moon (i understood the need for reflection of the laser but not how it worked)

@EmpeROARFabulous

I love retroreflective  technology.

@acmulhern

Alternatively, all road signs could be glitter. Less predictable but oh so fabulous

@stephen_harvey

Question though is, is it even legal to have retroreflectors on your vehicle to spite people using high beams