# data[].attributes.headline
Their wavelength is usually a couple of centimetres. Stars also give off microwaves.

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Their wavelength is usually a couple of centimetres. Stars also give off microwaves.

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n a mobile phone, they're made by a transmitter chip and an antenna, in a microwave oven they're made by a "magnetron"

# data[].attributes.subject
n a mobile phone, they're made by a transmitter chip and an antenna, in a microwave oven they're made by a "magnetron"

# data[].attributes.headline
Microwaves are basically extremely high frequency radio waves, and are made by various types of transmitter.

# data[].attributes.subject
Microwaves are basically extremely high frequency radio waves, and are made by various types of transmitter.

# data[].attributes.body
This means that mobile phone companies need to have many transmitter towers if they're going to attract customers.

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Mobile phones use microwaves, as they can be generated by a small antenna, which means that the phone doesn't need to be very big. Wifi also uses microwaves.

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Microwaves cause water and fat molecules to vibrate, which makes the substances hot.

# data[].attributes.subject
Microwaves cause water and fat molecules to vibrate, which makes the substances hot.

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electromagnetic spectrum can cause skin cancer and blindness.

# data[].attributes.body
microwaves can cause internal heating of body tissue