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Armimah Alwi

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147. C J H 25
148. Viktor Kiprono 24
149. Armimah Alwi 24
150. Png Si Hui 24
151. Islam Usman 23
last 3 solved tasks
What cannot be sawed but is made of wood?
I can run but not walk. Wherever I go, thought follows close behind. What am I?
MATH PUZZLE: Can you replace the question mark with a number?

William Webster Hansen

Died 23 May 1949 at age 39 (born 27 May 1909).American physicist who contributed to the development of radar and is regarded as the founder of microwave technology. He developed the klystron, a vacuum tube essential to radar technology (1937). Based on amplitude modulation of an electron beam, rather than on resonant circuits of coils and condensers, it permits the generation of powerful and stable high-frequency oscillations. It revolutionized high-energy physics and microwave research and led to airborne radar. The klystron also has been used in satellite communications, airplane and missile guidance systems, and telephone and television transmission. After WW II, working with three graduate students, Hansen demonstrated the first 4.5 MeV linear accelerator in 1947.

At the doctor's office...

At the doctor's office.
- What bothers you?
- I have a bad memory.
- Ok. What else?
- I have a very bad memory.
- What else?!
- And... I have a really bad memory.
- Yes, I understand that you have a bad memory! What else??
- And I have hearing problems.
- What else?
- What did you say?
- What else?!
- Say it again?
- What else?!
- Ah-ah! And I have a bad memory.
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