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The electronic components inside a loudspeaker are actually quite simple. The drivers and crossovers pictured here are available in a $369 kit. (Photograph by Chris Eckert) It was back in 1924 that a couple of researchers from General Electric, Chester Rice and Edward Kellogg, patented what remains the basic design for virtually all the world's loudspeakers. In the 84 years since, engineers and enthusiasts have invested a lot of thought and energy in the refinement of Rice and Kellogg's concept, creating a valuable knowledge base for the do-it-yourself crowd.
If you're interested in learning to make concept art—or simply taking your recreational painting into the digital sphere—concept artist Matt Kohr spent a week teaching us the basics. Here's the complete 101 course for your edification. Lesson 1: Get Started Painting on Your Computer Painting digitally is significantly different from painting with brushes. This kick-off lesson in digital painting provides you with a broad overview of those differences, suggestions for the software and hardware you'll need in your digital painting toolbox, and some tips for getting around with your tools of choice.
How To Make The Most Beautiful Paper Snowflake Ever! a spectacular - origami like - snowflake deco Last year, my friend Vero found an online tutorial to make this beautiful winter//Christmas decoration. This year we tried to find the instructions again and they were gone :( So we decided to do our own â€œHow toâ€ for this project.