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User:Palapala

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Welcome

2024-10-21 Monday 07:40

The first minute of the rest of your life...

Some of my background you'll be able to find

on my home page.
— 2004-01-28 —
I do not attend on a day-by-day basis, as my job does not allow this.
That doesn't imply that I will not stay with things I've started...

And, as Anthere has suggested: "I like you".



X-ray
X-rays are a form of high-energy electromagnetic radiation, with wavelengths shorter than those of ultraviolet rays and longer than those of gamma rays – roughly in the range of 0.01 to 10 nanometres. X-rays were discovered by German scientist Wilhelm Röntgen in 1895, who named them X-radiation to signify an unknown type of radiation. X-rays can penetrate many solid substances such as construction materials and living tissue, and X-ray radiography is widely used in medical diagnostics. This medical significance was noticed by Röntgen shortly after he discovered X-rays; this print, titled Hand mit Ringen (Hand with Rings), is a print of his first medical X-ray, taken of his wife Anna Bertha Ludwig's hand in December 1895.Print credit: Wilhelm Röntgen; restored by Yann Forget


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