Quiz on X-rays - all questions

wilhelm conrad röntgen

News of Röntgen’s discovery spread around the world like wildfire, but the scientific community’s initial response was one of astonishment and bewilderment. Some even thought that Röntgen was pulling their leg.

dessauer system roentgenapparate

The furor surrounding the discovery of the X-ray led to a number of bizarre concerns. But which of these four things did not happen in 1896?

old xray machine with lighning

In the early days of X-ray technology, an examination was always accompanied by an impressive fireworks display.



In the 1920s, an “elephant’s bottom” was used to provide radiation protection during deep X-ray therapy.


Our brain is very well protected, surrounded as it is by the skull, meninges, and cerebrospinal fluid – not even X-rays can penetrate this hard shell.

medical image of brain blood vessels

Every second, millions of tiny electrical signals pass through our nerve fibers. As they travel to and from the brain, these nerve impulses can reach the speed of …

old xray machine in use

What does the 1922 science fiction movie The Man from M.A.R.S. have in common with the 1927 stereoscopic imaging device from Siemens-Reiniger-Veifa?

mobilett xray machine

Back in the day, the Mobilett mobile X-ray system was one of the lightest devices in its class. How much do you think it weighed?


old photo of man with horses

Sometimes it was necessary to take the X-ray equipment to the patient. These situations prompted the development of mobile and transportable X-ray systems as early as the start of the 20th century. Horses were used not only to transport the devices, but also to generate the required power.

female patient in first ever ct

Which industry do we have to thank for the development of the first CT scanner?

somtom force ct scanner

In SOMATOM Force, two detectors and two X-ray tubes rotate around the patient at terrific speed. The accompanying forces are equivalent to a Mercedes-Benz E-Class rotating around a circular coffee table with five times the acceleration force of a fighter jet.

box with contact lenses

In Reiniger, Gebbert & Schall’s 1914 catalog, the eye is drawn to one small product in particular. What is it?

blood vessels in hand

Our body is crisscrossed with a complex network of arteries, veins, and fine capillaries. On average, the total length of all our blood vessels put together is equal to …

drawing with dots

The image shows an educational “dot to dot” puzzle that was used in the late 19th century to teach children about human anatomy.

xray machine old newspaper article

Have a guess! In 1909, how long did a patient need to hold still to have their chest X-rayed using the “Rekord” apparatus?


bottles of alcohol

Before specialized mammography units were introduced in the 1970s, physicians had to rely on a variety of aids in order to produce diagnostic X-rays of the female breast. In one example, the breast was immersed in alcohol to improve image quality.

cups of tea

X-ray images of the breast are often difficult to interpret. Which phenomenon can help with their interpretation?

polytron imaging system

The Polytron image-processing system of 1987 incorporated a special software component that made it easier for physicians to guide the catheter through the blood vessels. What technology was this based on?

film camera

From 1957 onwards, Siemens marketed specialized movie cameras that allowed professional movie production within the operating room.