Seeing colour - explaning Uv, IR and other radiation
8 important questions on Seeing colour - explaning Uv, IR and other radiation
What is the speed of light?
Which waves have the longest wavelength?
At what length do microwaves start?
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What waves can you detect with an ariel?
What is the most suitable length for an ariel?
How long are the microwaves used for police walkie-talkies?
Is it true that in a night club white clothing lights up due to additives in the washing-powder in which the clothing was washed?
Does a fluorescent substance emit types of radiation that are not present in the light it absorbs?
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