TheHistoryBoy on Instagram: "Historically, the color associations for boys and girls have switched several times, with pink and blue swapping roles around the 1940s due to marketing and changing societal norms. Before that, around the 1910s, pink was often considered a boy’s color because it was seen as a “stronger” color, while blue was considered a “delicate” color for girls. The modern association of pink for girls and blue for boys became widespread during the mid-20th century, a trend encou

Designing Simple Power Supply Circuits – Homemade Circuit Projects

PWM in Power Supply Design