“F is for Frequency” – Circuit Playground! (video) – featuring a talking oscilloscope ! What is frequency? Why is it so important for radio and sound waves? Find all the answers with Adabot, Ladyada and a new friend who knows quite a bit about the subject.
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Learn resistor values with Mho’s Resistance or get the best electronics calculator for engineers “Circuit Playground” – Adafruit’s Apps!
Maker Business — “Finally — some data on whether crowdfunding is a good investment or not”
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