3 . Four Online Art Classes

International Center of Photography

Cost: $20 per month or $220 per year

Class length (持续时间): 3 to 5 hours

Registration (注册): Open year-round

Standout feature: International Center of Photography is popular for photography classes that are suitable for people at different skill levels at these classes are taught by experienced teachers.

The Ceramic (陶瓷) School

Cost: $30 per month or $300 per year

Class length: 1 to 2 hours

Registration: Open year-round

Standout feature: The Ceramic School offers many classes and live online events at a reasonable price and is only centered on ceramics.

Craftsy

Cost: $10 per month or $90 per year

Class length: 1 to 2 hours

Registration: By semester (学)

Standout feature: Craftsy stands out for offering many courses

sewing, embroidery and knitting (缝纫、刺绣和编织) that are suitable for all levels, from beginners to more experienced learners.

Skillshare

Cost: $15 per month or $150 per year

Class length: 1 to 3 hours

Registration: Open year-round

Standout feature: Providing classes for people at all skill levels at aaffordable price, Skillshare is our top pick for online painting lessons.

4 . Yue-Sai Kan was born in China. In 1972, she moved to New York. When Kan was a child, she was told by her father that she should always aim to (力争) be the first because no one remembered the second. What her father said has been a driving inspiration over the years for her to become a bestselling author and a successful businesswoman.

Her new book Be a Pioneer, which is the tenth she has written and her first Chinese-language autobiography (自传), was produced after three years, inspired by her father’s words.

When writing an autobiography, the biggest challenge is not how to present one’s life, but to remember it. To help with reconstructing her story, Kan asked many friends and colleagues she made over the years to write down their memories of her from earlier times. So besides featuring Kan’s own words, the new book is also filled with those of her friends’s, which gives Kan a new understanding of herself — a woman who works hard, studies hard. and the most important thing is that she is a woman filled with a sense of responsibility.

“My helper Stephanie mentioned that I was worried because we were running out of money for the company. My housekeeper reminded me that before the start of one of my events she found that I had fainted (晕倒) in the bathroom. I was so tired that I was getting sick. They know more about me than myself,” Kan says.

“Writing a book is a good business to be in, not so much to make money but to grow the brain. I believe what I do will benefit the world. All the things I have done in Be a Pioneer — my successes and my failures — can be a good example to young people in particular. That’s the main reason why I wrote the book,” adds Kan.

6 . When I was a child, I always wanted to be a superhero. I wanted to save the world and make everyone happy. But I knew that I’d need superpowers to make my dreams come true. So I used to embark on these imaginary journeys to find intergalactic (星系之间的) objects from planet Krypton, but didn’t yield much result. When I grew up and realized that science fiction was not a good source for superpowers, I decided instead to embark on a journey of real science, to find a more useful truth.

I started my journey in California, with a UC Berkeley 30-year longitudinal study that examined the photos of students in an old yearbook, and tried to measure their success and well-being throughout their life.By measuring the students’ smiles, researchers were able to predict how fulfilling and long-lasting a subject’s marriage would be, how well they would score on standardized tests of well-being, and how inspiring they would be to others.

Another aha moment came from a 2010 Wayne State University span research project that looked into pre-1950s baseball cards of Major League players. The researchers found that the span of a player’s smile could actually assist to predict the span of his life. Players who didn’t smile in their pictures lived an average of only 72.9 years, while players with beaming smiles lived an average of almost 80 years.

British researchers found that one smile can generate the same level of brain stimulation as up to 2,000 bars of chocolate. Wait — The same study found that smiling is as stimulating as receiving up to £16,000 in cash. That’s like $25,000 a smile. It’s not bad. And think about it this way: 25,000 times 400 — children smile as many as 400 times per day — quite a few kids out there feel like Mark Zuckerberg every day.

So whenever you want to tap into a superpower that will help you and everyone around you live a longer, healthier, happier life, smile.

7 . Which of your children is your favorite? Your response is probably “none of them.” What kind of parent would choose one child as his or her favorite? The truth might be surprising to you.

Years of research supports what many have suspected-most parents have a favorite child. Studies have explored reasons from birth order to gender (性别) and shared interests. Yet even with years of research that supports this idea, most parents tend to deny the fact that they have a favorite child. Even if there is no obvious parental favorite among siblings (兄弟姐妹), studies have shown that children often feel preferential treatment of their sibling by their parents. Favoritism often results in family conflicts and feelings of sadness among family members whether parents’ favoritism is real or only felt. Thus both the kids and their parents tend to be plagued by the favoritism.

The question isn’t whether or not you have a favorite child, since it’s pretty clear that many parents do. Typically, favoritism has little to do with loving one child more. It is more about how your personality resonates (产生共鸣) with one child’s personality more than the others’. Essentially, it’s a question of “like”. Still, why is it so hard for us to admit that one of our children might be our favorite? Some parents might worry about harming their children emotionally or psychologically. Some parents confuse liking one child’s personality with the love they show to each child. However, when recognizing that you might hold preferential feelings towards one child you are taking an important step towards creating a better relationship with all of your children.

Instead of denying the fact, you can reflect on how you relate to each of your children. Examining your feelings towards each of your children can provide a greater insight into your own personality and how you function in relationships -- and in fact, how you consider your children might reflect more about your thoughts and feelings of yourself than them. Increased awareness about your inner world can help you build and keep healthier relationships with your children.

10 . A team of researchers from the Universities of Washington and Toronto have developed an app, FeverPhone, suitable for diagnosing (诊断) a patient’s fever.

“As an undergraduate, I was doing research in a lab where we showed that you could use the temperature sensor in a smartphone to measure air temperature,” says lead author Joseph Breda. “When I came to the UW, my adviser and I wondered how we could apply a similar technique for health. We decided to measure fever in an accessible way. The primary concern with temperature isn’t that it’s a difficult signal to measure; it’s just that people don’t have thermometers (体温计).”

“In a wave of flu, for instance, people running to the emergency room can take a week sometimes. So if people were to share fever results with public health agencies through the app, this earlier sign could help us take action sooner,” adds Mastafa Springston, co-author of the study.

The trick is to use the temperature sensor already present in a smartphone. A patient holds the smartphone’s display against their forehead for 90 seconds, and the rise in temperature is compared against the surrounding temperature to determine their core body temperature — using a machine learning model trained on a number of test cases to calibrate the results.

It may sound like a crazy approach, but in testing, the FeverPhone app was able to estimate the core body temperature of 37 patients in a real emergency department with an average error of 0.23℃ — around half the 0.5℃ error range required for clinical use.

“We started with smartphones since they’re easy to get data from,” Breda says. “I am already working on seeing if we can get a similar signal with wearables like smartwatches. What’s nice, because watches are much smaller, is their temperature will change more quickly. So you could imagine having a user put a Fitbit to their forehead and measure in 10 seconds whether they have a fever or not.”