On "Wet Bulb Temperature"

Before the holiday, we were working on a project that used the SHT series of sensors. This sensor has a function to calculate the dew point. But what is the dew point? Dew point, from the name, you can probably guess the meaning of this term - it’s related to the formation of dew. However, if you want to further explore the specific meaning of this professional term, you might think of searching for it on Baidu? Fang Jie posted an article a few days ago, which mentioned

“Whether it’s Baidu or Google, the dew point is actually a banned word, poor dew point.”

You can also try searching for this term on Baidu or Google yourself. So, why does this situation occur, and what can we do about it? Below, I’ll share my years of experience with everyone, and those who already know can skip it:)

Why does this situation occur?

Obviously, the stupid search engine (although it’s not supposed to be said that way, see the specific reason later) misunderstood our intention. Dew point, apart from its scientific meaning, also has another layer of meaning, which is often mixed with some results that make boys feel excited and happy:) . Therefore, to keep us far away from yellow, gambling, and drugs, and to protect our young minds, our search results are blocked by something called GFW.

So, what is GFW?

GFW’s full name is the Great Firewall of China or the Chinese National Firewall, also known as the Great Wall of Fire. Because some forums also list GFW as a sensitive word that can excite boys, we usually use the term “Gong Fu Wang” (Kung Fu Net) to refer to it.

In general, the Great Firewall of China refers to the software and hardware system used by the Chinese government to monitor and filter internet content, consisting of servers, routers, and related application programs. Due to China’s widespread internet censorship, Chinese domestic websites containing “inappropriate” content will receive direct administrative intervention from the government, requiring self-censorship, self-regulation, and even closure. Therefore, the main function of the Great Firewall of China is to analyze and filter the mutual access of network information between China and foreign countries.

For specific information, you can visit the Wikipedia entry zh.wikipedia.org/wiki/防火长城. Of course, if you click on the link above, you will still “hit the wall”, so how can we “climb over the wall”?

How to “climb over the wall”

There are many ways to climb over the wall, and I’ll introduce the simplest method below. Visit http://go2.appspot.com/, paste the URL you want to access into the box, such as the Wikipedia URL above, and click Go. Then, you’ll find that you can access the webpage:)

Next, you can test www.google.com and search for the term “dew point” again. You’ll find that you can now search for it normally - this proves that Google is not stupid at all, and the developers’ IQ is probably similar to mine:) . The stupid one is China’s GFW.

Of course, you can also try searching for other terms like xxx!#$%^&*()_ and so on, but I won’t teach you how to do bad things.

That’s it, we can finally climb over the wall and access the internet without any restrictions. You can now appreciate the true internet - one without any limitations. You won’t see the annoying message “Some results are not displayed due to local policies or regulations” anymore.

Extended knowledge:

HTTPS connection

You may have noticed that there’s a button called Go (HTTPS) on the wall-climbing website. If you click this button, you can also climb over the wall. So, what is an HTTPS connection?

The internet protocol we usually use has poor security, and data is transmitted in plain text. For example, when you’re reading this article, the data is transmitted from the server I rent to your computer without encryption. If someone or an organization is interested in you or me, such as the FBI (hopefully not), they can intercept the data packet and know what you’re looking at. This may not be very important for students like us, but I’m sure we don’t want our love letters to be stolen:) .

HTTPS connections can encrypt data transmission, so even if someone intercepts the data, it’s difficult to decipher (or at least, I don’t know if it can be deciphered, and you can research it yourself).

So, what’s the actual use of HTTPS connections?

Firstly, GFW will intercept all data packets, including your emails (related article: soildot), and if it finds that you’re discussing sensitive topics, you’ll be listed on the government’s high-risk “most wanted” blacklist:) .

Therefore, to prevent being blocked again when climbing over the wall, it’s best to use the Go (HTTPS) button provided by the website.

Commonly used HTTPS connections

https://www.quake0day.com/ is the HTTPS access channel for my foreign website - this is an advertisement

https://mail.qq.com/ is the HTTPS login address for QQ mail

GMail can be set to always use HTTPS connections - it’s recommended to use GMail and enable HTTPS when sending emails to foreign countries, to avoid the recipient not receiving the email.

That’s it, I’ve shared all my skills with you. If you find it helpful, please leave a comment:)

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