5th- microwaves by Shakyra Keener https://padlet.com/keenesha000/ribbzg3dx57i Keener, Butler, Boufford, Moreno en-us 2017-02-24 17:14:55 UTC 2017-05-17 11:57:10 UTC hello@padlet.com boufftan000 https://padlet.com/keenesha000/ribbzg3dx57i/wish/156478482 2017-02-27 16:55:36 UTC https://padlet.com/keenesha000/ribbzg3dx57i/wish/156478482 morenadr0001 https://padlet.com/keenesha000/ribbzg3dx57i/wish/156479021 2017-02-27 16:56:47 UTC https://padlet.com/keenesha000/ribbzg3dx57i/wish/156479021 microwaves uses morenadr0001 https://padlet.com/keenesha000/ribbzg3dx57i/wish/156479431  1. it can be used to re heat food 
2. used for astronomers to learn about the structure of near by galaxies
3.  to communicate with others with microwaves you need antennas for it to reach others

]]> 2017-02-27 16:57:52 UTC https://padlet.com/keenesha000/ribbzg3dx57i/wish/156479431 butlemor000 https://padlet.com/keenesha000/ribbzg3dx57i/wish/156480453 2017-02-27 17:00:25 UTC https://padlet.com/keenesha000/ribbzg3dx57i/wish/156480453 Dangers: butlemor000 https://padlet.com/keenesha000/ribbzg3dx57i/wish/156480719 1. Significant levels of microwaves is known to cause "cataracts" in your eyes, which is a clouding that makes it difficult to see clearly.

2. Small doses of microwaves from mobile phones might affect parts of your brain.]]> 2017-02-27 17:01:07 UTC https://padlet.com/keenesha000/ribbzg3dx57i/wish/156480719 boufftan000 https://padlet.com/keenesha000/ribbzg3dx57i/wish/156480942 1.They are made by various types of transmitter.
2.In a Microwave Oven they are made by a magnetron.
3.Stars also give off microwaves.]]> 2017-02-27 17:01:44 UTC https://padlet.com/keenesha000/ribbzg3dx57i/wish/156480942 keenesha000 https://padlet.com/keenesha000/ribbzg3dx57i/wish/156481592 2017-02-27 17:03:26 UTC https://padlet.com/keenesha000/ribbzg3dx57i/wish/156481592 Question: butlemor000 https://padlet.com/keenesha000/ribbzg3dx57i/wish/156481750 What is the wavelength range of microwaves?]]> 2017-02-27 17:03:51 UTC https://padlet.com/keenesha000/ribbzg3dx57i/wish/156481750 size of wavelength: 1-10^ -3 .frequency: 300 MHz (100 cm)and 300 GHz (0.1 cm) keenesha000 https://padlet.com/keenesha000/ribbzg3dx57i/wish/157091392 2017-03-01 17:02:07 UTC https://padlet.com/keenesha000/ribbzg3dx57i/wish/157091392