Looking for a great idea for a science project? In this video series you'll learn how to build a battery-run light board which can test the electrical conductivity of various objects. You can find these supplies easily at your local hardware store.
Make a light board - Part 2 of 6
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Make a light board - Part 3 of 6
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Make a light board - Part 4 of 6
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Make a light board - Part 5 of 6
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Make a light board - Part 6 of 6
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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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