I had this idea of building my own bicycle lighting system totally personalized, the lights would have the exact lighting pattern I wanted and the shape I decide. That's why I started to build this ...

Making a servo tester using an Attiny85 micro chip, Attiny45 also works for this project. This diy servo tester is as good as ...

On July 17, 1945, Manhattan Project scientist Leo Szilard writes a petition to U.S. President Harry S. Truman—signed by 70 Manhattan Project scientists—asking him to refrain from using atomic weapons ...