The author is Jonathan J. Darrow, and is valid because he is a tutor and fellow on medical research on Harvard University, one of the most prestigious universities in the world. He also holds a BS in biological sciences in Cornell.
This article talks about an invention about type of colonoscopy. It consists in a capsule that has lots of advantages from the other colonoscopy, for example, a better view, no pain, and a lot of cost advantages.
The site is relevant because it has very good writers, mostly all of them from Harvard, and other very good universities. This site doesn’t have a lot of information about technology, but has a lot about health. But, since they include new therapeutically inventions from technology, I believe its valid.