What hides this stereogram?

Stereogram - 3D Image

#brainteasers #stereogram #3Dimage

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Three elderly men are taking a...

Three elderly men are taking a walk outside their nursing home. The first one says, "Windy, isn't it?" The second one says, "No, it's Thursday!" The third one says, "So am I. Let's go get a beer."

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Charles Barkla

Died 23 Oct 1944 at age 67 (born 7 Jun 1877).Charles Glover Barkla was an English physicist who was awarded the Nobel Prize for Physics in 1917 for his work on X-ray scattering. This technique is applied to the investigation of atomic structures, by studying how X-rays passing through a material and are deflected by the atomic electrons. In 1903, he showed that the scattering of x-rays by gases depends on the molecular weight of the gas. His experiments on the polarization of x-rays (1904) and the direction of scattering of a beam of x-rays (1907) showed X-rays to be electromagnetic radiation like light (whereas, at the time, William Henry Bragg who held that X-rays were particles.) Barkla further discovered that each element has its own characteristic x-ray spectrum.«

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