Researchers conduct a study to understand how passengers waiting on a train platform maintain spacing. They develop a mathematical model based on their findings to optimize busy railway platforms.
In this episode:
00:45 A new insight into cancers' selective spread
Cancer cells can spread to bones in the late stages of disease and in many cancers, cells actually preferentially metastasise to the spine. The reason for this has been a puzzle to researchers for years, but now a team has found a new kind of stem cell that may be involved in this process. The stem cell is found in mice and humans and could represent a clinical target in the treatment of cancer.
This time, a second trial shows the effectiveness of using MDMA to help treat post-traumatic stress disorder, and how an upgrade to an X-ray laser will let researchers make ultra-crisp ‘molecular movies’.