1 . My teacher held up a piece of broken glass and asked, “Who broke this window?”

Thirty boys tried to think about not only what they had done, but also what the teacher might have found out. She seldom became angry, but she was this time.

“Oh,” I thought. I was the one who broke the window. It was caused by a naughty throw of a baseball. If I admitted guilt, I would be in a lot of trouble. How would I be able to pay for a big window like that? I didn’t even get an allowance. “My father is going to have a fit as a result of it,” I thought. I didn’t want to raise my hand, but some force much stronger than I was pulled it skyward (朝向天空). I told the truth, “I did it.” It was hard enough to say what I had done.

My teacher took down a book from one of our library shelves and I had never known my teacher to strike a student, but I feared she was going to start with me.

“I know how much you like birds,” she said as she stood looking down at my guilt-ridden face. “Here is the field guide about birds that you are constantly checking out. It is yours now. It’s time we got a new one for the school anyway. You will not be punished, but remember that I am not rewarding you for your misdeed (恶行), but I am rewarding you for your truthfulness.”

I couldn’t believe it! I wasn’t being punished and I was getting my own bird field guide — the very one that I had been saving up money to buy.

The lesson my teacher taught me stays with me every day, and it will echo forever.

2 . China is recognized as a world leader in the development of artificial intelligence (AI) and facial recognition systems. A Chinese company says it has created a new facial recognition system that can identify people even if they are wearing masks (口罩). Engineers at the Beijing-based company say their system is the first to be created to effectively identify people wearing face masks.

The company told a news agency that a team of 20 people built the system in about a month. The system is based on existing technologies developed over the past 10 years. The process involved adding a collection of about 6 million unmasked faces and a much smaller collection of masked faces, the company said.

The company is now selling two main kinds of products that use the new technology. One performs “single channel” recognition, which is designed to be used at the entrances to buildings. The other product is a “multi-channel” recognition system that uses groups of surveillance (监视) cameras. It can identify individuals in a crowd of up to 30 people within a second.

“When people are wearing a mask that covers the mouth and the nose, the recognition rate can reach about 95%, which can ensure that most people can be identified,” said Huang, vice president of the company. He added that the system’s success rate for people not wearing a mask is about 99.5%.

However, the new system struggles to identify people wearing both a mask and sunglasses. “In this situation, all of the key facial information is lost. In such cases recognition is graunchy,” Huang said.

People react to the new technology differently. While some citizens have been against using such tools, the majority have accepted the technology as an effective way to reduce crime and catch criminals.

4 . The latest in cat research reveals that the lovely animal seems to have a basic grasp on both the laws of physics and the ins and outs of cause and effect.

According to a newly published study, cats seem to be able to predict the location of hiding prey (猎物) using both their ears and an inborn (天生的) understanding of how the physical world works.

In a recent experiment, Japanese researchers taped 30 domestic cats reacting to a container that a team member shook. Some containers rattled (发出响声); others did not. When the container was tipped over, sometimes an object fell out and sometimes it didn’t.

It turns out that the cats were remarkably smart about what would happen when a container was tipped over. When an object did not drop out of the bottom of a rattling container, they looked at it for a longer time than they did when the container behaved as expected.

“Cats use a causal-logical understanding of noise or sounds to predict the appearance of invisible objects,” lead researcher Saho Takagi says in a press release. The researchers conclude that cats’ hunting style may have developed based on their common-sense abilities to infer where prey is, using their hearing.

Scientists have explored this idea with other lovely creatures: babies. Like cats, babies appear to engage in what’s called “preferential looking”—looking longer at things that are interesting or unusual than things they perceive as normal.

When babies’ expectations are not met in experiments like the ones performed with the cats, they react much like their animal friends. Psychologists have shown that babies apparently expect their world to obey the laws of physics and cause and effect as early as two months of age.

Does the study mean that cats will soon grasp the ins and outs of cause and effect? Maybe, Okay, so cats may not be the next physics faculty members at America’s most important research universities. But by demonstrating their common sense, they’ve shown that the divide between cats and humans may not be that great after all.

6 . Given how valuable intelligence and automation are, we will continue to improve our technology if we are at all able to. At a certain point, we will build machines that are smarter than we are. Once we have machines that are smarter than we are, they will begin to improve themselves. The concern is really that we will build machines that are much more competent than we are. And the slightest divergence (分歧) between their goals and our own could destroy us.

Just think about how we relate to ants. We don’t hate them. We don’t go out of our way to harm them. In fact, sometimes we take pains not to harm them. We step over them on the sidewalk. But whenever their presence seriously conflicts with one of our goals, we will kill them without hesitation. The concern is that we will one day build machines that, whether they’re conscious or not, could treat us with similar disregard.

The bare fact is that we will continue to improve our intelligent machines. We have problems that we desperately need to solve. So we will do this, if we can. The train is already out of the station, and there’s no brake to pull. If we build machines that are more intelligent than we are, they will very likely develop in ways that we can’t imagine, and transcend us in ways that we can’t imagine.

So imagine we hit upon a design of super intelligent AI that has no safety concerns. This machine would be the perfect labor-saving device. It can design the machine that can build the machine which can do any physical work, powered by sunlight, more or less for the cost of raw materials. So we’re talking bout the end of human labour. We’re also talking about the end of most intellectual work. So what would apes like ourselves do in these circumstances?

But the moment we admit that information processing is the source of intelligence, we have to admit that we are in the process of building some sort of god. Now would be a good time to make sure it’s a god we can live with.

10 . Humans evolved from apes. This is what we learned in biology class. But what came before apes? Chinese scientists have discovered fossils that could enrich the evolutionary story of how humans evolved from fish.

According to four articles published in the journal Nature in late September, Chinese researchers found fish fossils that provide the “missing link” about the origin of the jaw, a key feature that 99.8 percent of vertebrate (脊椎动物) species have.

Zhu Min, a lead researcher of the studies from the Chinese Academy of Sciences, said that the findings drew a large amount of interest in the science world due to the importance of jaws in animal evolution.

However, the rise of the jaw had been a mystery due to a lack of sufficient fossil evidence to support that jawed vertebrates lived 450 million years ago.

The latest findings made by Zhu’s team presented a set of five surprisingly well-preserved fish fossils that included three whole-bodied fish, helping scientists paint a more accurate evolutionary picture of the origin of the jaw. The fish fossils were discovered at two sites in Chongqing and Guizhou, whose strata (岩层) date back to the Silurian Period that began around 440 million years ago.

These fossils show that jawed fish were already thriving (繁荣) in the world’s ancient oceans at that time. Later on, more diverse and larger jawed fish evolved and began to spread around the world, paving the way for some fish to eventually go on land and evolve into other animals — including humans.

“These fossils provide an unprecedented (前所未有的) opportunity to peek into the ‘dawn of fish’ and help scientists trace many human body structures back to these ancient fish thus filling some key gaps in the evolutionary history of how fish evolved into humans,” Zhu said.