Laser diode self-mixing: Range-finding and sub-micron vibration measurement

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Most powerful diode Laser OVERDRIVEN! Nanosecond Laser!

Etching silicon wafers to make colorful Rugate optical filters (porous silicon)

MEMs oscillator sensitivity to helium (helium kills iPhones)

Engineering magnetics -- practical introduction to BH curve

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Live Modeling Hogwarts Great Hall in SketchUp

CompTIA A+ Certification Video Course

Why It Was Almost Impossible to Make the Blue LED

Making an atomic trampoline

Drawing on a plasma display with a laser pointer

Silver nanoprisms grown into structural colors by high power LEDs

How to Program Allen Bradley PLC Training for Beginners

CompTIA Network+ Certification Video Course

Counting Atoms with the Doppler Effect - Heterodyne Interferometer

DIY Scanning Laser Microscope

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How Resistor Work - Unravel the Mysteries of How Resistors Work!

Crazy difference between 5W LASER and 5W LED!