Electronic Salvage SMD resistor from CFL to LED Flashlight powered by rechargeable lithium battery

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Description: I salvaged SMD resistors from broken CFL nightlight to make LED flashlight. Since it has 150 ohm SMD resistor, I can solder together a small portable flashlight powered by rechargeable 250 mAh lithium battery.

Quantitative Chemistry Experiment How much CO2 is produced Part 2

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Description: In this Part 2 video, I will perform the experiment to see if I can get 290mL of carbon dioxide gas. After three attempts, the maximum percentage yield that I have obtained was less 47%. I will repeat this experiment again in...

How to determine the resistor for LED light with Rechargeable Lithium Battery

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Description: Today we are going to use math and science to build a rechargeable LED light. For the science part, you will need: Rechargeable Lithium Battery, 150 ohm resistor, and white LED light (from Christmas LED lightbulb). For the math part, you...

How to remove micro resistors and capacitors from motherboard or circuit board

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Description: How to remove micro resistors and capacitors from motherboard or circuit board