Free Computer Courses
There are many free resources and online courses available for learning computer programming languages. Some of the most popular and reputable platforms include:
Khan Academy: Khan Academy provides free courses on computer programming, computer science, and web development.
edX: edX offers free courses from top universities worldwide, including computer science courses in programming, data analysis, and web development.
Coursera: Coursera offers free courses from top universities worldwide, including courses in computer science, programming, and web development.
MIT OpenCourseWare: MIT OpenCourseWare provides free course materials and lectures from MIT courses, including computer science and programming.
These resources offer quality programming education at no cost, and you can find the one that suits your learning style and preferences.
Eric Tigerstedt, Finland
Eric Tigerstedt was a Finnish inventor and engineer who lived from 1887 to 1925. He is best known for his work in the field of sound recording and playback.
Tigerstedt was born in Helsinki, Finland, and received his education at the Helsinki University of Technology. He began his career working as an engineer for the Finnish Post Office, where he helped to develop a number of communication technologies.
In the early 1910s, Tigerstedt turned his attention to the field of sound recording and playback. He invented a device called the "Televox" that was capable of recording and playing back sound on a magnetic wire. This was a major breakthrough in the field, as previous sound recording technologies relied on wax cylinders or discs.
Tigerstedt continued to refine his invention, and in 1914 he patented a new version of the Televox that used a magnetic tape instead of a wire. This was one of the first magnetic tape recorders ever invented, and it paved the way for many of the sound recording technologies we use today.
Despite his significant contributions to the field of sound recording, Tigerstedt's life was cut tragically short when he died of pneumonia in 1925, at the age of just 37. However, his legacy lives on, and he is remembered as a pioneering inventor and engineer who helped to revolutionize the way we record and play back sound.