1 / 10

Understanding Microwaves and Infrared: Helping Grandma Stay Safe and Informed

Guide Grandma on the difference between microwave oven waves and nuclear radiation, showcase infrared images to explain cat's cold nose, discuss infrared technology uses, and distinguish radio waves from microwaves.

iram
Télécharger la présentation

Understanding Microwaves and Infrared: Helping Grandma Stay Safe and Informed

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Unit 3 Seminar Microwaves and Infrared

  2. Grandma Needs Help • Your Grandma Pauline has just won a microwave oven in a radio contest. When it arrives at her house, it sits on her counter, unused, for a month. One afternoon, when you visit her, she tells you that she is afraid to use it because "If I stand too close, I'll get radiated!" Explain to your Grandma the difference between the waves that are used in a microwave oven and the dangerous nuclear radiation she fears.

  3. Grandma says, “That cat looks funny!” • Use this spooky infrared picture of a cat: to give some proof to Grandma Pauline that a cat's nose is always cold. • http://science.hq.nasa.gov/kids/imagers/ems/ircat.gif

  4. Your Body in Infrared • If you took a similar • infrared photo of your • body, what parts would • you expect to show • up as brightest orange? • What parts would be blue?

  5. Other Uses for Infrared? • Can you think of other uses for infrared?

  6. Infrared Study • Click on the link, review the study. • Do you think this is a good use of infrared waves? • Other thoughts? http://www.sciencedaily.com/releases/2009/02/090210092730.htm

  7. New Infrared Technology • Raytheon just developed the world’s largest infrared light wave detector. What is this technology useful for? http://raytheon.mediaroom.com/index.php?s=43&item=1355

  8. Radio Waves vs. Microwaves • After Grandma Pauline starts thinking about electromagnetic waves, she asks you to explain why, if radio waves and microwaves are both electromagnetic waves, you believe she can’t listen to KROQ- FM on her new oven.

  9. Have a great week!Thank you for attending!

More Related