不积跬步,无以至千里
不积小流,无以成江海

Great journeys begin with small steps;
mighty rivers grow from little streams.

Golden monkey climbing building


Flowers and bee


My Covid experience

18 April, Monday. Go restaurant with friends for lunch and dinner. Then in the evening, throat is very painful and cannot sleep well. 19 April, Tuesday. Throat pain is less. In morning, ART tes...

Bokeh - A Python package to create figure & UI

To plot figure in Python, matplotlib is an native module. Now there is another good option, Bokeh, https://docs.bokeh.org/en/latest/index.html. Bokeh is Python lib, which core module is written b...

Sunset after raining on Sunday and today’s cloud dog


How to setup PostgreSQL in Python

Install Psycopg2 package in Python pip install psycopg2 or pipenv install psycopg2 (virtual python environment) Install postgresql in Ubuntu sudo apt update sudo apt install postgresql...

Hornbill, too hot, hidden in tree, in west coast park


How to install Ubuntu & Windows 10 dual OS system in Surface book

There are many tutorials on how to install Ubuntu & Windows 10 systems. But when setup in surface book, there is a difficulty to be solved, i.e. Ubuntu cannot identify surface keyboard. Thus,...

Just saying good bye to 2021 Christmas, coming 2022 Chinese New Year

Bye to 2021 Christmas Coming 2022 Chinese new year

Home made chili oil and chili oil beef

Chili oil,made of canola oil, chiliand sesame Chili beef oil sauce , made of canola oil, chili, onion, garlic, spring onion, traditional Chinese sweet soybean paste

Merry Christmas 🎄 at Marina sands


Christmas 🎄 at Orchard road

Christmas is coming. It is time to find a place to feel the Christmas air. In the city country of Singapore, every year orchid road is best place, with fantastic decorations.

Cycling to Sungei Buloh Wetland Reserve: a trip from south to north in Singapore

Sungei Buloh Wetland Reserve is an attractive park, located in north of Singapore, and in another side of sea it is Malaysia. In the past we drive car to there. In the morning of Sunday, I am fre...

Otters living in the park. Our new neighbor.


Cycling from Queenstown to Punggol

This Sunday it is free, and plan to cycling to Punggol or Coney Island park along the coast-to-coast path. In order to cross PIE, the path is from Botanic Garden, Kheam hock road to Lornie road...

Morning has long cycling. Heavy rain when eating lunch


Book: Amazon effect

Amazon dominates in retail industry and its e-commerce business affects almost every local stores. The book discusses the Amazon effect, how it’s business moving from online to offline and fin...

Gift from NPUAAS and NPU alumni

NPUAAS, north-western polytechnic university alumni association society, in Singapore, gave Covid-19’s gift to NPU alumni. It is donated from an alumni in shandong province, China. When he heard ...

Pandan reservoir


Setting sun at Sentosa broadway

View setting sun at Sentosa broadway. Blue sky, white cloud, and sea.

If you want to make quick money, all-in cryptocurrency. If you wan to quick bankruptcy, all-in cryptocurrency.

After wake-up in the morning, read news and find the top is that squid-game cryptocurrency dropping near to zero just among a few weeks. Its price is moving from penny to 2860 and now near zero. ...

Explore cycling path from Singapore river to Bishan park

In this afternoon, I plan to cycling to Bishan park along Singapore river. But after Kallang river, the path is becoming worse, because there is not direct path along the Kallang river. I must cy...

Enjoy weekend rest and peaceful life at river bank near Marina bay sands


OCBC stadium and golden garden


Good morning Friday, friends, relaxed and exercising

On the Friday morning, a little relaxed, do not need wake up early to prepare breakfast for school children because secondary school open later on Friday. So I have time to do long-walking mornin...

Facebook death, Meta born

Facebook is planning to change company name to Meta. Is it a good idea to rebrand famous name? https://www.usatoday.com/story/tech/2021/10/28/facebook-meta-name-change-metaverse-instagram-whatsap...

Memory of back hometown, shandong, China, in 2019

Due to Covid’19, there is 2 years I cannot return to my hometown in the south-west, Shandong province, China. This is pictures I take in 2019 when I am back. My parents plant these fruits and my ...

Enjoying beautiful nature and life


Sharing picture to video creation, enjoying different view of Singapore Marina bay . Wordpress may need prepare such tool to enhance content creator.


廉颇老矣,尚能饭否?

廉颇老矣,尚能饭否?这是战国时期蔺相如问廉颇,您老身体如何,还能上战场打仗吗?对于老人来讲,能吃是福啊。 在我的山东老家鲁西南的一个小县城,每到春节,去老人家拜年,常说的一句是:您老吃了几碗扁食(扁食,方言,也就是饺子。不过现在可能扁食说的少了,饺子多了。)啊?老人家能吃饭,说明身体好,吃嘛嘛香。 普通话越来越普及了,方言越来越少了。记录下我还记得的 方言。 扁食:饺子 h...

Cycling path summary explored in Singapore up to now

Since moving into Queens town and buying bicycle, weekend cycling is not only a must exercise but also is a way to explore Singapore. Without bicycle I normally walk at most 5-km around my living...

Today cycling up-down hill road. Switch from green railway to Temasek club and climb up to entry of MacRitchie


Enjoy flying bee on flower


Wild flower, working bees, a little fog


Night cycling at Sentosa, but Sentosa not much cycling friendly, only cycling road to Sentosa cove. There no view, only hotel.


After almost 2-year, cycling to sentosa


浅谈任务调度中的自身依赖

在大数据处理中,因为算法或者业务逻辑的要求,有时候需要依赖任务本身的历史数据,譬如,当前业务日期依赖T-1,即昨天的计算结果。这就是自依赖,在任务调度图上看,就是一个闭环。 以T-1来说,如果昨天的任务没有完成,那么今天的业务日期是处于等待状态,直到昨天的完成为止。这种有个潜在的风险是,如果任务失败,而又不能及时发现并重启,那么后续的所有业务日期的任务都处于等待。而且,重启任务要从最...

Passion fruit in sky garden


East Coast park , 东海岸公园


Learn programming - C++ basic

I will share some slides being prepared to teach basic C++ to children. C++ is beautiful and useful, particularly when your system has high requirements on efficiency with limited resources. Alth...

宽客人生读后感

从一档podcast听到这本书,就找来看看。这是一本介绍Emanuel Derman,一位在哥伦比亚大学受训为理论物理学家,如何经历职业的震荡,最终成为一位量化分析师的过程。如果我在博士刚毕业的时候能看到这本书,可能我的个人职业发展也会是不一样的人生。 对于立志从事科学研究的人,读完这本书,可能要重新审视自己的决定。 六七十年代的哥大,那是理论物理学的重地,因为有李政道在那...

East coat, many people rest at beach


Flying kite


Go to East Coast


Garden by the Bay to Marina barrages


Learning Python, a step closing to AI - 8

If you are interested in AI, machine learning, master a programming language is a must. Python is top-1 language for its simplicity and many third-party packages available that allow you develop ...

Learning Python, a step closing to AI - 7

If you are interested in AI, machine learning, master a programming language is a must. Python is top-1 language for its simplicity and many third-party packages available that allow you develop ...

Learning Python, a step closing to AI - 5

If you are interested in AI, machine learning, master a programming language is a must. Python is top-1 language for its simplicity and many third-party packages available that allow you develop ...

Learning Python, a step closing to AI - 6

If you are interested in AI, machine learning, master a programming language is a must. Python is top-1 language for its simplicity and many third-party packages available that allow you develop ...

Learning Python, a step closing to AI - 4

If you are interested in AI, machine learning, master a programming language is a must. Python is top-1 language for its simplicity and many third-party packages available that allow you develop ...

Learning Python, a step closing to AI - 3

If you are interested in AI, machine learning, master a programming language is a must. Python is top-1 language for its simplicity and many third-party packages available that allow you develop ...

Learning Python, a step closing to AI - 2

If you are interested in AI, machine learning, master a programming language is a must. Python is top-1 language for its simplicity and many third-party packages available that allow you develop ...

Learning Python, a step closing to AI - 1

If you are interested in AI, machine learning, master a programming language is a must. Python is top-1 language for its simplicity and many third-party packages available that allow you develop ...

Greenway and railway corridor - great jogging and cycling place

In the past, it is rail way connecting Singapore with Malaysia, starting from Tanjong Pagar station in city, and entering Malaysia through woodland. But now, it is retired and is rebuilt as a Nat...

Flowers young vs old. First time notice old is becoming whole black


Natural greenway corridors


Greenway corridor


AB test, Huber, my pet dog, smart or not

Huber, my pet dog, is smart. He knows when I will go outsider without taking him and when I will take him go to play. He knows it from my dressing based on his past experience. Normally, I ...

IKEA $1 hotdog


Happy Huber, playing his toy