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[A new interlinear poem will be available each Monday: Weekly Interlinear Poem .]
Use the dictionary, the acronym finder, and the word origins dictionary (links above) as needed. A new quiz is available each Monday through Thursday. This is the quiz for November 4.
Wilhelm Röntgen (died 1923) discovered X-rays.
On the evening of November 8, 1895, he found that objects of different thicknesses interposed in the path of the rays from a shielded cathode ray tube showed variable transparency to the rays when recorded on a photographic plate. When he immobilised for some moments the hand of his wife in the path of the rays over a photographic plate, he observed after development of the plate an image of his wife's hand, which showed the shadows thrown by the bones of her hand and that of a ring she was wearing. This was the first "röntgenogram" ever taken. Because their nature was then unknown, he gave them the name X-rays. It was later shown that they are of the same electromagnetic nature as light but differ from it in the higher frequency of their vibration.
Throughout his life Rontgen retained his love of nature and outdoor occupations. Many vacations were spent at his summer home at Weilheim, at the foot of the Bavarian Alps, where he entertained his friends and went on many expeditions into the mountains. He was a great mountaineer and more than once got into dangerous situations. Amiable and courteous by nature, he was always understanding of the views and difficulties of others. He was always shy of having an assistant and preferred to work alone. Much of the apparatus he used was built by himself.
1. Cathode meansA. a tube.2. The Latin origin of transparent meant
B. a wire carrying electrons.
C. a negatively-charged source of sub-atomic particles called electrons.
D. a source of light.A. without obstruction.3. Rontgen' work style was
B. send across.
C. make real.
D. appear through.A. solitary.4. The vibrations of x-rays are
D. to work in a pair.A. of the same frequency as light.
B. of a higher frequency than light.
C. of a lower frequency than light.
D. not electromagnetic in nature.
The information comes from Wikipedia.
Write down your answers and then see Answer Key below.
Answer Key: 1-C..........2-D..........3-A..........4-B
Corrections? Questions? Comments? E-mail Robert Jackson at firstname.lastname@example.org.