A spectrometer is an optical instrument used to measure properties of light over a specific portion of the electromagnetic spectrum. This video will show you how to make a spectrometer out of a cereal box and a compact disc. This spectroscope is sure to amaze your kids for a nifty science project.
Apple's iOS 26 and iPadOS 26 updates are packed with new features, and you can try them before almost everyone else. First, check Gadget Hacks' list of supported iPhone and iPad models, then follow the step-by-step guide to install the iOS/iPadOS 26 beta — no paid developer account required.
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