X-ray

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Starting in 1894, my husband undaunted, which I greatly admired, began investigating radiant energy of "invisible" kinds.

He noticed something interesting when examining damaged film in his laboratory in previous experiments.

Later he would call them X-ray.

Nikola was the first again. Inadvertently captured an X-ray image  when he tried to photograph his friend Mark Twain illuminated by a Geissler tube, an earlier type of gas discharge tube. He discovered the skeletal image of Mr. Twain.

Again disappointment followed as it was Wilhelm Röntgen who would announce that he discovered the X-ray and would be credited as the first, when it was Nikola who was first.

The injustice drove me to madness.

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