The Lenovo ThinkPad X9 14 is a sleeker, more luxurious ThinkPad. However, its performance and battery life are mid-pack.

Explore the detailed process of manufacturing whiteboard marker pens in a Korean ink pen factory. From assembling the casing to filling each pen with high-quality ink, every step ensures smooth ...

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[Eduard] sent in his IR webcam whiteboard project ... to pull the IR filter from your camera to get a decent signal.) The pen is the usual IR LED with a power supply. To do the actual work ...