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116 DESIGN007 MAGAZINE I SEPTEMBER 2020 1 Just Ask Happy: The Exclusive Compilation E We asked for you to send in your questions for Happy Holden, and you took us up on it! We loved them so much, and we know that you did too, so we've compiled all 21 questions and answers into one document for easy reference. 2 Altium Posts Positive Financial Growth in Fiscal Year Report E Electronic design software company Altium Limited has announced its results for the full year ended on June 30, 2020. Altium achieved revenue growth of 10% to US$189 million with solid performances in all core business units and key regions. Profit before tax grew by 12% to US$65 million USD. The company delivered an EBITDA margin of 40.0% for the full year. 3 Just Ask Joe: Standardized Grid Designs E First, we asked you to send in your questions for Happy Holden. Now, it's Joe Fjels- tad's turn! Inventor, colum- nist, instructor, and founder of Verdant Electronics, Joe has been involved with rigid PCBs and flexible cir- cuits for decades, and he's ready to share some of his knowledge with our readers. We hope you enjoy "Just Ask Joe." 4 Beyond Design: The Wavelength of Electromagnetic Energy E The speed of light is the one universal physical constant that we are yet to break. Barry Olney looks at how to simply measure the speed of light and how the wavelength of electromagnetic energy relates to the multi- layer PCB. Happy Holden Barry Olney Joe Fjelstad

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