We are proud to present the fifth issue of the Journal of Unsolved Questions. In this issue titled “Scientific Labor” you can read first-hand reports of what “doing science” means to different scientists. In our leading article C. Attaccalite and S. Barland have investigated trends in condensed matter physics and ask themselves if research is going faster and faster. And just maybe you can find an answer to our open questions like: “Who Was the Sexologist ‘Carl van Bolen’?” or “Is Henderson’s Theorem Practically Useful?”.
Enjoy the new issue and let us know what you think in the comments!
— David Huesmann on behalf of the Editorial Board