Puluj did heavy research into cathode rays, publishing several papers about those rays between 1880 and 1882.
In 1881 as a result of experiments into what he called cold light Prof. Puluj developed the Puluj lamp; it was awarded the Silver Medal at the International Electrotechnical Exhibition in Paris, 1881.
Throughout the world, it has become known as the "lamp of Puluj" and even it was mass-produced for some time.

Puluj experimented with his new device and published his results in a scientific paper, Luminous Electrical Matter and the Fourth State of Matter in  the Notes of the Austrian Imperial Academy of Sciences (1880–1883), but expressed his ideas in an obscure manner using obsolete terminology.
Puluj did gain some recognition when the work was translated and published as a book by the Royal Society in the UK.

While Professor Puluj's finding were essentially X-rays, he did not recognise them as such at first, although he demonstrated X-ray pictures of a hand and fingers obtained by using his tube / lamp to his students.
This credit later went on to Wilhelm Conrad Röntgen.
Once Röntgen visited Professor Puluj's laboratory and the latter presented one of his tubes to Röntgen.
Röntgen went home and in his laboratory started to conduct experiments with Puluj's tube.
Puluj also continued to do research with his X-ray tubes.
On 8 February 1896, just 6 weeks after Röntgen presented his finding about X-Rays, Puluj published his own findings in the French journal La Nature in Paris.
He presented photographs that exhibited the skeleton of a stillborn child.
His work was republished in various European scientific journals.
Puluj would release further images of human body parts, including an image of a fractured human hand, and would suggest possible medical usages of this new technology.
The quality of Puluj's pictures was much better than that of Röntgen's.

Puluj made many other discoveries as well.
He is particularly noted for inventing a device for determining the mechanical equivalent of heat that was exhibited at the Exposition Universelle, Paris, 1878.
Puluj also participated in opening of several power plants in Austria-Hungary.
Puluj did heavy research into cathode rays, publishing several papers about those rays between 1880 and 1882. In 1881 as a result of experiments into what he called cold light Prof. Puluj developed the Puluj lamp; it was awarded the Silver Medal at the International Electrotechnical Exhibition in Paris, 1881. Throughout the world, it has become known as the "lamp of Puluj" and even it was mass-produced for some time.
Puluj experimented with his new device and published his results in a scientific paper, Luminous Electrical Matter and the Fourth State of Matter in  the Notes of the Austrian Imperial Academy of Sciences (1880–1883), but expressed his ideas in an obscure manner using obsolete terminology. Puluj did gain some recognition when the work was translated and published as a book by the Royal Society in the UK.
While Professor Puluj's finding were essentially X-rays, he did not recognise them as such at first, although he demonstrated X-ray pictures of a hand and fingers obtained by using his tube / lamp to his students. This credit later went on to Wilhelm Conrad Röntgen. Once Röntgen visited Professor Puluj's laboratory and the latter presented one of his tubes to Röntgen. Röntgen went home and in his laboratory started to conduct experiments with Puluj's tube. Puluj also continued to do research with his X-ray tubes. On 8 February 1896, just 6 weeks after Röntgen presented his finding about X-Rays, Puluj published his own findings in the French journal La Nature in Paris. He presented photographs that exhibited the skeleton of a stillborn child. His work was republished in various European scientific journals. Puluj would release further images of human body parts, including an image of a fractured human hand, and would suggest possible medical usages of this new technology. The quality of Puluj's pictures was much better than that of Röntgen's. 
Puluj made many other discoveries as well. He is particularly noted for inventing a device for determining the mechanical equivalent of heat that was exhibited at the Exposition Universelle, Paris, 1878. Puluj also participated in opening of several power plants in Austria-Hungary.
Ivan Puluj