1 . Protect the night sky

As a nature photographer, stars have always been one of my favourite elements in the photos. They offer an connection to a universe that is mysterious and grand, connecting our earthly lives to the heavens. Since the earliest recorded history, the night sky has sparked our imaginations and become deeply rooted in our cultures, traditions, artwork, and in later years, has inspired the development of technology with the hope of reaching beyond our blue planet.

With the development of the industrial (工业的) world, though, we have begun to lose the clarity (清晰) that thousands of generations of people and wildlife before us have enjoyed. Because of excesssive (过度) use of lighting, stars have become fainter (模糊的). For photographers hoping to capture the magic of the night sky, they must seek new places. Dark places are far from the reach of a city, and those place are becoming harder and harder to find.

Thanks to conservation groups, led by the International Dark-Sky Association (IDA), we have an opportunity to improve our night skies and recapture ancient magic. By holding the International Dark-Sky week, a yearly celebration of the night sky, the IDA is helping cities, communities and families do their part in helping make skies darker. Dark skies benefit more than just nature photographers; they are important to many wildlife species that also depend on them.

Here are some simple steps we all can do that are easy and inexpensive:

* Change your light bulbs to a dark-sky-friendly color, the closer the light is similar to “firelight” and the further it is away from a blue or white color, the better it is for the environment.

* Use a light fixture that channels the light down and instead of wide and open.

* Turn your lights off before bed!

2 . The world's first restaurant operated by robots has attracted plenty of diners after it officially started service in Zhujiang New Town in this Guangdong provincial capital on Monday. The restaurant, which only serves Guangdong Shunde cuisine, allows robots to cook, deliver food, place orders for diners and handle most of the work in the restaurant.

“The robot chefs can actually compete with famous chefs from Shunde, which is known for its delicious dishes at home and abroad,” said a diner surnamed Chen. Chen and his friends praised the delicious food cooked by the robots after they tasted fried vegetables, steamed fish and braised pigeon in the restaurant on Monday. A local Shunde cuisine chef surnamed Ma Huiliang said he gave the fried vegetables cooked by the robot 90 out of 100 points. But Ma said he never worries that robots would replace chefs in the future. “On the contrary, it is a liberating opportunity for chefs when robots can cook,” he said. “Chefs can focus their work on innovation and research for new food to better inherit and develop Chinese cuisine when robots can cook.” Ma added.

Qiu Mi, assistant president of Country Garden Group, which runs the restaurant, said the restaurant now has 46 different kinds of robots that can do almost all the work of the restaurant, including welcoming clients, frying dishes, mixing wines, making dessert, cooking rice, operating a cloud rail system and delivering food.

And all the diners can see how their food is being cooked by robots in the kitchen, which is separated by transparent glass walls from the dining hall, Qiu said. The restaurant combines new and high technology with traditional Chinese cuisine, Qiu added.

3 . Zong Qinghou, the founder and chairman of Hangzhou Wahaha Group, China passed away on Sunday at the age of 79. As one of the most respected representatives of China’s first generation of entrepreneurs (企业家) since the country embarked on reform and opening-up in 1978, Zong’s down-to-earth style and innovative spirit greatly impressed the public.

Born in 1945 in Suqian, Jiangsu province, Zong took over a small grocery store at a school in Hangzhou in 1987. In 1989, he founded Hangzhou Wahaha Nutritional Food Factory. In 1996, Zong launched Wahaha AD calcium milk, which became a great hit with Chinese consumers. The company’s products now cover more than 200 categories, including purified water, milk and yogurt drinks, carbonated drinks, fruit and vegetable juice, tea and coffee drinks, with its sales revenue reaching 51.2 billion yuan in 2022. It has nearly 30,000 employees and 8l production bases nationwide. Zong was ranked as the country’s richest person in 2010, 2012 and 2013 by business magazine Forbes.

However, Zong led a simple life, and it was common to see him dressed in a white shirt and black cloth shoes. He once said, “I am an ordinary person, but luckily I was born in such an era (时代).” He said that Wahaha would not exist without reform and opening-up. He said that Chinese entrepreneurs should fulfill their social responsibilities, and create wealth for the people, adding that they should create more employment opportunities and participate in public welfare activities, contributing to the country’s economic and social development.

Moreover, Zong attached great importance to technological innovation to ensure the quality and diversity (多样性) of Wahaha’s products in a highly competitive market, and provide strong impetus to the company’s sustainable growth. It is widely acknowledged that Zong’s management philosophy has set an example for the development of China’s private economy.

6 . In 1999, David Dunning and Justin Kruger did a series of studies evaluating people’s competence in certain areas, including grammar, humor and logic. The people in the studies were asked to evaluate their own abilities in each area. Dunning and Kruger found that people who scored low on the tests have the tendency to overestimate their abilities, indicating that people who lack skills tend to lack the ability to realize their shortcomings.

This principle has become known as the Dunning-Kruger effect. It occurs because only when people have skills in a given area are they equipped to evaluate their own skills. Admittedly, most people are overconfident in their abilities. They want to believe that they are more capable, knowledgeable and even superior to others, and when someone really wants something to be true, it can be hard for them to admit that it isn’t. By the way, the opposite of the Dunning-Kruger effect also happens: capable people have a more accurate view of their own abilities, and sometimes they even underestimate themselves.

It’s tempting (吸引人的) to think of the Dunning-Kruger effect as a problem. People may even laugh at those who think themselves more competent than they truly are, but everyone has areas where they lack competence, and the Dunning-Kruger effect means they may be relatively bad at self-evaluation in those areas. Even if someone is very intelligent in general, there are still things they don’t know much about. Expertise in one area cannot always be transferred to other areas.

That’s why it’s important to keep digging for information even when you think you’ve found answers. It can also be helpful to check your ideas with other people. Receiving negative feedback can hurt, but if you’re willing to listen, it can help you grow. Even just keeping in mind that the Dunning-Kruger effect exists can help you stay modest, accept criticism and, thus, keep learning throughout your life.

9 . Hidden Gems: Underrated National Parks Worth Exploring

Many travelers flock to popular national parks like Yellowstone for their family vacations or adventurous getaways. However, there are some lesser-known gems that often go unnoticed despite their remarkable beauty and attractions.

Isle Royale National Park

Nestled in the heart of Lake Superior, Isle Royale requires a bit of effort to reach, but the journey is rewarded with breathtaking scenery. Accessible only by daily ferries, this park sees far fewer visitors compared to larger destinations like Yellowstone. Hikers are treated to sightings of wildlife such as wolves along the park’s picturesque trails.

Dry Tortugas National Park

Situated 68 miles southwest of the Florida Keys, the Dry Tortugas is a secluded (偏僻的) island park accessible only by boat or plane. Despite its small size, it boasts rich history, abundant marine life, and stunning coral reefs. At its center stands Fort Jefferson, the largest masonry structure in the Western Hemisphere.

Wrangell-St. Elias National Park

Covering over 13.2 million acres, Wrangell-St Elias National Park is the largest in the entire U.S. park system. Remote and largely undeveloped, this park challenges visitors with limited access—only two roads lead into it. However, those who venture here are rewarded with a profound connection to nature unparalleled elsewhere.

Big Bend National Park

For travelers seeking a truly rugged (崎岖的) experience, Big Bend National Park is a must-visit destination. Renowned for its whitewater rafting, camping, and hiking opportunities, this park can be excessively hot during the summer months, deterring many tourists.

These hidden gems offer unique experiences and breathtaking landscapes, making them worthy contenders for any adventurer's bucket list.

10 . What is a GPA?

A GPA, or Grade Point Average, typically ranging from one to four, is a number reflecting your course performance on average. It’s used by universities to determine whether students meet academic standards and by students to enhance job prospects or secure admission into post-graduate programs.

How to calculate a GPA?

● Determine the letter grade and the number of credit hours for each course you take in a term;

● Translate the letter grade to grade points using your school’s grading system;

● Multiply the grade points by the credit hours for that course;

● Add up all the credit hours for the courses;

● Divide the total number of grade points by the total credit hours and you get the GPA.

What are the consequences of failing college courses?

● Every failing grade (F) significantly impacts your GPA for that academic year, limiting clubs, organizations and program choices, as competitive programs require top GPAs.

● Most financial aid programs require a specific GPA. A sharp drop in GPA due to several course failures may lead to withdrawal from financial aid programs, unless you retake the courses and pass.

● For college athletes on sports scholarships, failing courses repeatedly can lead to losing scholarships and team spots.

● Failing multiple courses can result in school removal and affect future applications.