Wilhelm Conrad Röntgen was a German physicist who lived from 1845 until 1923. He discovered electromagnetic radiation in a wavelength range known today as x-rays. The achievement earned him the first Nobel Prize in Physics in 1901.
Anders Jonas Ångström was a Swedish physicist who lived between 1814 and 1874. He discovered a unit of length used to express sizes of atoms or molecules. Today, we simply refer to it as Ångström or Å. One Å is equal to one ten billionth of a metre (1/10,000,000,000).
Röntgen and Ångström were contemporaries for 29 years in total but probably never met. Who knows what they would have come up with had they entered a collaboration in their time? They set the highest standard in their field.
The Röntgen-Ångström-Cluster is devoted to just that: producing meaningful research.