EM SPECTRUM, INC.

INTERESTED IN VISIBLE LIGHT?

• That is to say light visible to the human eye.
• Before you say "oh, how boring."
• Remember that this is why we see colors.

INTERESTED IN X-RAYS?

• Of course you are!
• These are invisible to the human eye.
• We use them to image bones, yes, but!
• They can also be used for security!

INTERESTED IN INFRARED?

• They're a doozy!
• They lie between visible red lights and radio waves.
• Also given off by warm things/living beings.
• They can be used for drying paint or wallpaper or printing ink.
• Or all three!

INTERESTED IN MICROWAVES?

• These have a very high frequency.
• They make water and fat molecules vibrate.
• They're used for microwaves AND cellphones.

INTERESTED IN ULTRAVIOLET RAYS?

• These have very short wavelengths.
• They're invisible to the human eye.
• But hey!
• You can open an awesome tanning salon,
• because ultraviolet rays cause tans!

INTERESTED IN GAMMA RAYS?

• These are very high energy waves.
• The highest in this catalogue in fact!
• They're extremely penetrative.
• They can be used for the treatment of certain cancers.