Thursday May 17 2012
A Color You Can't See

Use your cell phone to see a color you can't see.


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I saw

I saw the lights without a cell phone!

remotes

Do all remotes do this?

Not all of them. Some

Not all of them. Some remotes, especially remote controls for gates, garage doors, car door remotes, and other outside sensors usually use radio signals instead of infrared light.

Neat!!!!!!!!!!!!!

I never knew that!

WOW!

That was soooo awesome! I will try it.

cell phone

cool!i just got my cell yesterday and i will try it!!

Cool!

I Never knew that, really cool video!

cool!

I really like this video. I took many pictures. I thought the light was red but i was wrong. This is my favorite video other then scaring salt.

Ultraviolet light

Did you know that ultraviolet light is harmful to your eyes and body? Once again, please don't send me an email, just reply on here.

Yes, ultraviolet light can be

Yes, ultraviolet light can be harmful if you are exposed to too much. That is what gives you a sunburn, and the cause of snow blindness.

interesting

i always wondered about that little light bulb on my remote. Now i know. thanks

Red Light

Some remote controls show red lights. I saw something like that once

i will show my

i will show my friends!!!!!!!!!!!!!!

Experiment shown is very good Thankyou

This is the first time I knew how to see the light from a remote control. Very informative for me.

Thankyou :)

I joined this site for my kids benefit, but I'm learning so much too :) I would always comment "I don't know how this remote is working but it is and I'm not complaining" :p thanks for explaining it so simply!

good

good job man

RE: Radio Waves

Good point, and a great subject for a future video. Light waves and radio waves are a part of the same electromagnetic spectrum, although most sources that I found limit the use of the word "light" to the part of that spectrum that can be seen by human eyes or the eyes of other creatures. Thanks!

Radio Waves

It might have been worth pointing out that radio waves are light waves too. You made it sound like radio waves were something else entirely.

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