Colby Geary on Instagram: "Want to get started with 3D printing? Comment “3D Printer” and i’ll dm you my recommendations on how to get started. . All the files for these designs are at the link in my bio #3dprinting"

Phil Cook on Instagram: "I built a simple setup to demonstrate how Li-Fi: light-based wireless communication, can be used to transmit sound using visible light. An audio signal from my iPad is amplified and sent to a light-emitting diode (LED), converting the sound into rapid fluctuations in light intensity. When the flickering light shines on a solar panel, the panel converts the light back into an electrical signal that can drive a speaker, reproducing the original sound. Because light waves c