Harry Potter inspires engineer for a quick blood type test

There is a scene in the movie, Harry Potter and the Chamber of Secrets, where Harry Potter writes a question in Tom Riddle's Diary and gets an answer. While watching that scene an engineer got an idea to develop a sensor that can report a blood type result in writing 😲
Don't be amazed! This is a true story of an Engineer Associate Professor Wei Shen, from Monash University, and colleagues.
You can read the full story on Discovery News here: https://news.discovery.com/tech/harry-potter-blood-type-tech-120501.html#mkcpgn=rssnws1
It's funny how people find inspiration for their inventions at the most unusual places. 😍