何毓琦的个人博客分享 http://blog.sciencenet.cn/u/何毓琦 哈佛(1961-2001) 清华(2001-date)

博文

按标题搜索
Guest Blog by William MS Lee
2023-8-1 18:39
William (Billy) MS Lee is the first friend I made when I arrived in the United States in 1950. We were initiated into the same Chinese Student Fraternity, FF, in 1951. There after we maintain contact over the next 70+ years as our friendship remain s meaningful in our ...
个人分类: 生活点滴|2074 次阅读|没有评论
The third place
热度 1 2023-7-27 20:07
Social and medical professions have long known that human being is a social animal. Except for a very small percent of the human spcies, Long term isolation and solitude are not healthy for the mental and physical survival of a human being. On the other hand, for most of the population, we spent so ...
个人分类: 生活点滴|2320 次阅读|3 个评论 热度 1
Accessing links in my old blogs
2023-7-19 23:57
I have often in the past gave links to worth while reference in my blog articles. However, with the passage of time, those links no longer works. One must do some extra wrok in order to reach the linked content. Let me give an example. I wrote an blog article about the unsung heroines of the Scienc ...
个人分类: S and T|2218 次阅读|没有评论
A clever energy solution
2023-7-15 19:33
I heard the other night on NPR (National Public Radio in the US) a clever solution for our energy problem. This is how it goes: Solar energy farm for electricity supply are developing raqpidly due to declining cost. However, electric energy demand are more intense during evening/night when pe ...
个人分类: S and T|2552 次阅读|没有评论
More about GPT
热度 2 2023-6-25 10:28
I did a bit moreresearch about GPT and learned that GPT is just a language model. It merely predicts what is the more likely next word based on its vast data base and the previous word of the text No reasoning ability were built into it. This explains some of its behavior t ...
个人分类: S and T|2967 次阅读|3 个评论 热度 2
More about our retirement community living
2023-6-23 04:27
Yet another shout out about the Brookhaven Retirement Community in Lexington, MA Four days ago, my wife Sophia had an episode of vertigo with symptoms of dizziness and vomiting (don't be influenced by the well-known movie of the same name. It does not mean fear of heights). We f ...
个人分类: 生活点滴|2326 次阅读|没有评论
My first experience of using ChatGPT
热度 2 2023-6-20 19:30
By now I believe most reader are aware of the AI software ChatGPT which seems almost intelligent. Here are my experience in using the free version of chat GPT for the first time. Recorded below are my four questions asking ChatGPT folr answers/articles about optimal control and Yu-Chi Ho – my life ...
个人分类: S and T|8804 次阅读|6 个评论 热度 2
Two Basic Ideas of Control Theory That Anyone Can Understand
2023-5-31 04:25
Two Basic Ideas of Control Theory That Anyone Can Understand 1. Averaging Out The Noise =Kalman filter and other estimation schemes Suppose you have the situation: ith Measurement = unknown constant + ith noise, i=1,2,3, . . . How do we go about estimating the unknow ...
个人分类: S and T|2523 次阅读|没有评论
WE ARE BLESSED PARENTS
热度 1 2023-5-20 09:31
WE ARE BLESSED PARENTS Both my wife and I believe in “being prepared”. Thus, before any trip, we always go through a list of things to bring (For example, voltage transformer for trips to Europe to operate US electrical appliances there). But on her recent hiking trip to Italy with our son, d ...
个人分类: 生活点滴|2445 次阅读|2 个评论 热度 1
[转载]For your amusement
2023-5-18 05:04
32 witty, one-liner jokes about getting old to make you smile 12/18/2022 by Roy Sutton Save Looking for some jokes about getting old, dear reader? Well, today I can offer you 32 of them. Whether you’re young or old, I’m sure you’ll be able ...
个人分类: 生活点滴|2355 次阅读|没有评论

Archiver|手机版|科学网 ( 京ICP备07017567号-12 )

GMT+8, 2024-9-20 06:35

Powered by ScienceNet.cn

Copyright © 2007- 中国科学报社

返回顶部