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Forrest Bao
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288 followers
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My template to reject fundamentally flawed papers
From time to time, I am invited to review papers that are fundamentally flawed. Those papers are written so poorly that I can decide their fates in 1 minute. To save myself from typing again, below is a template. I will just copy and paste. This paper is ve...
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Quick reference examples for Amazon AWS Glacier command line interface (CLI)
I do not use Amazon AWS Glacier very often. I backing up my files to Glacier every a few months. So I hate to check the manual all the time. Hence, this blog post. Preparation Make sure that you have the ~/.aws/config and ~/.aws/credentials configured. In t...
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Friendship before mentorship
"You should run your startup like a cult" -- Peter Thiel, "Zero to One" Short version: If you are a graduate student who do not want to become friends ever with your PhD advisor, then my lab is not a good place for your PhD study. When it comes down to what...
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Tuning Grub 2, the bootloader
Below of some useful tips for Grub2, the open source bootloader. You are to edit the file /etc/default/grub . After you are done with any of the changes below, run sudo grub-update to apply the change. 1. Get rid of the submenu: Add a line: GRUB_DISABLE_SUB...
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Connecting to a WiFi network on Linux at startup without GUI
Many embedded Linux platforms are expected to connect to a WiFi network at startup automatically. And the Linux system is booted into multi-user model, i.e., no GUI, X window, or desktop environment. A lot of the solutions, e.g., making a connection availab...
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Solution to most not-found or undefined problems in C/C++ compilation
Many people have compilation errors. If you search "undefined reference to" in Google, or maybe StackOverflow alone, you will notice that those problems have been asked dozens if not hundreds of times. There are generally 4 problems: was not declared in thi...
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緬懷義士 #劉曉波. Yesterday, #LiuXiaobo, a human rights activist and the Nobel Peace Prize laureate of 2010, died in the hand of Communists in China, at the age of 61 due to terminal liver cancer. He had been in jail since 2008 for advocating basic human rights in China. Would he still get cancer if the Commies did not wrongfully lock him up in the first place? Would his cancer still develop into terminal stage if the Commies showed some mercy and allowed him to go to a hospital earlier?
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The correct dimensions of Hitec C1 spline
The C1 spline of 24 teeth is the standard shaft size for Hitec's servo motors, which are quite popular in maker community. Recently, I needed to design some parts that fits with it. However, finding it's accurate inner (basic) and outer (tip or addendum) di...
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Creating an arbitrary surface or any geometric element in FreeCAD
Creating an arbitrary geometric element, such as a surface or a polygon, is a task common in CAD. FreeCAD provides two ways to do so in its Part module. The first approach is called Create Primitives, where you specify the parameters to define a geometric e...
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勿忘 #六四 Twenty-eight years ago, on this day, at #Tiananmen, Communists used machine guns and tanks to crackdown a protest demanding democracy and transparency. Today this topic is still forbidden from being publicly discussed in China. If I were posting this post on any Chinese social media platforms, e.g., Wechat or Weibo, it would be gone in seconds and I may be unreachable for who knows how long. Today, once again, I pay my tribute to the young men and women at #Tiananmen. They died for themselves and the people of China. 國旗爲何叫青天白日滿地紅? 就是有人在光天化日下殺了很多人,血流得滿地都是紅的。
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