Some special experiences about X-ray monochromator.

For nearly 40 years, I have been involved in the experiments at synchrotron and neutron facilities.  As is quite often, the work can be overnight work.  Actually, I have just come back from such work.  I'm now over 60 years old, but it is OK.  I will tell you some of secrets. 

Physical principle of X-ray generation is explained. 

Some impression about the Alamo, which is a historical place in San Antonio, Texas, USA.  

Personal past memory about Africa - exciting place and wonderful people.  

A short talk on Zhuge Liang, who lived in the three kingdoms era (early 3rd century) in China as a genius military advisor and strategist.   

Introduction of  "Homo Deus: A Brief History of Tomorrow" authored by Yuval Noah Harari in 2015. 

My personal opinion about the significance of learning original books.  When you are a beginner, this would be apparent.  But it is more important to continue this even after you become an expert.

Short explanation about random walk, which was first introduced by Karl Pearson in 1905, and is now widely used to understand and predict the complex system in a quantitative way.

Short explanation on Chapters 19 and 20 in "Sapiens: A Brief History of Humankind"  authored by Yuval Noah Harari.