See to belive

Zacharias Jansen (c. 1580 - c. 1638) was a Dutch spectacle-maker from Middelburg credited with inventing, or contributing advances towards the invention of the first telescope. Jansen is sometimes credited for inventing the first truly compound microscope. However, the origin of the microscope, just like the origin of the telescope, is a matter of debate.

http://en.wikipedia.org/wiki/Sacharias_Jansen

Wilhelm Röntgen , ARS and SCIENTIA who help sameone.

Wilhelm Conrad Röntgen (27 March 1845 – 10 February 1923) was a German physicist, who, on 8 November 1895, produced and detected electromagnetic radiation in a wavelength range today known as X-rays or Röntgen rays, an achievement that earned him the first Nobel Prize in Physics in 1901.^[1]:1

Following transliteration conventions for characters accented by an umlaut, "Röntgen" in English is spelled "Roentgen", and that is the usual rendering found in English-language scientific and medical references.

http://en.wikipedia.org/wiki/Wilhelm_Röntgen

x ray

one of items is x ray , can see into the body to fine a problem to think about a solution.