PacSci Streaming Videos
Live Science Shows
See experiments, and tricks in action during one of PacSci's Live Science Shows. See shows on PacSci Now or live at the science center. Each promises to inspire curiosity and entertain people of all ages. View the full video Live Science playlist.
PacSci Now: Experiences On-Demand
PacSci Now:; Experiences On-Demand brings you into daily life at PacSci with behind-the-scenes content. See the butterflies fly, listen to interviews with staff, try STEM activities, meet STEM professionals, and learn about a wide variety of scientific topics. Get to know the fun and odd side of PacSci, while learning about scientific topics. View the full PacSci Now video playlist.
Early Childhood Explorations
Check out these fun ways for preschool aged kids to investigate science. Inspire your early learner's curiosity with various programs, dynamic, touchable exhibits, opportunities to experiment, and of course learn. View the full Early Childhood Explorations video playlist.
Tinker Tank at Home
Design, build, test and repeat! Continue experimenting and innovating with Tinker Tank at Home. Check out these instructional videos and build a milk carton boat, create a Cox-rich atmosphere, make circuits, and more. View the full Tinker Tank video playlist.
Virtual Planetarium Show
Travel to the outer reaches of the universe, or explore the planets in our own solar system. Discuss current astronomy news and learn about recent discoveries. Each show is live and presenters can revise the program based on interest. View the full Virtual Planetarium Shows video playlist.
Imagine a plate holding two strawberries, similar in appearance. One came out of a supermarket box, meaning it was probably harvested before it is fully grown, immediately placed in a forced-air cooling unit, loaded onto a refrigerated truck and driven hundreds of miles. By the time it reached the plate two weeks may have passed. The other strawberry was picked from a garden minutes before being eaten.
The first one will probably not taste good as expected. The second is likely to be sweet; the flavor will remain in the mouth. Supermarket strawberries are not entirely without advantages: they are convenient and available even in winter. But the two berries differ from each other in the same way that hearing music in a concert hall differs from listening to an MP3. The home-grown fruit is an eatable case for planting a home garden.
Planting cool-weather greens can seem meaningless as well-stocked supermarket shelves are available all week. But the same could be said of cooking: cheap and good restaurants everywhere, so why bother to make your own meals?
That attitude fails to understand the basic appeal of gardening: it mistakes the product for the purpose. It is true that a garden can produce tomatoes and carrots that taste like themselves rather than the plastic they are usually packaged in. Finding some favorite vegetables in the shops can take some time, effort and expense; growing your own vegetables, rare or routine, ensures a reliable supply.
On the other hand, a garden, especially in the early years, can also produce frustration. Creative gardeners may plant the wrong crops for their soil. Little animals may have the habit of taking single bites of cucumbers, beans and tomatoes. And even expert gardeners can lose a season's harvest to uncooperative weather.
No matter. The real joy of gardening is the time spent doing it. The deepest pleasure一as with cooking, writing, bringing up children or almost anything worthwhile一is in the work itself. A gardener's memories center not around the food produced, but around long summer afternoons with hands in the dirt of a home garden, surrounded by family. To garden is to patiently and lovingly help life grow, in the ground and above it.
As you may have noticed, despite years of efforts to get more women into management, most company bosses are still men. Encouraging women to be more confident isn't the best way to deal with the leadership gap between males and females. As a matter of fact, women have greater chances of becoming bosses in the opt-out model than they do in the opt-in model.
In the opt-in model, women often undervalue their own skills. Some come from cultures that teach them to be modest; others fear seeming too active. Therefore, women are less confident and tend to work more years than men do before applying for a promotion. They basically need to feel super ready.
The researchers decided to overturn the model: What if all qualified applicants running for leadership roles have the choice to give up if they want to? This so-called opt-out model pushes companies to keep hiring employees unless the staff take steps to show they don't want to participate.
Researchers tested the idea in the lab. In a series of experiments, more than 1,000 men and women worked in teams on a variety of tasks. They were all evaluated on the quality of their work, and the highest performers naturally became bosses unless they actively gave up. Surprise: The management male/female gap narrowed in the opt-out model.
In another group where people needed to opt in to be considered for a leadership role, the imbalance continued, even when women knew they were top performers and would surely become the boss if they applied. The suggestion is that all those efforts to support equality have little effect unless it is naturally accepted that women are suitable for leaderships.
Opt-in models are everywhere in the workplace. Being aware of the problem and then finding ways to change the models is really important. If women have to opt in, the message is "you shouldn't consider signing up unless you think you're really competent and competitive." In an opt- out system, however, the message is everyone is qualified and under consideration. It's a policy that basically brings better choices for managers and it is really good for the future of organizations.
Strategies to Strengthen Your Immune System
Infections are unavoidable and everyone can get sick.You scratch, cough, ache, and sweat. When you are getting old, your immune system weakens. Fortunately, there are other ways you can strengthen your immune system, besides healthy diets and regular exercise.
Socialize more.
People with richer social lives enjoy better health and life. With more communication or company, they release the stress and strengthen happiness, which promotes their immune system. If they did get sick, they would have fewer symptoms for a shorter period of time.
Vitamin D plays a number of roles in promoting normal immune function. Unfortunately, nearly one-third of the U.S. population lack vitamin D. Because few foods contain much vitamin D, your best bet is to regularly spend short periods of time in the sun (without sunscreen).
Choose vitamin pills wisely.
Studies link lack of vitamins A, B6, C, D and E to reduced immune function. But scientists have yet to set exact levels of these nutrients for best immune function. For instance, research has not proved the function of vitamin C in prevention and treatment of the common cold. Some micronutrients, notably vitamin A, can be poisonous if consumed too much.
Immunize yourself.
Most immunizations occur during childhood to ensure a healthy growth. For adults of all ages, vaccinations (接种疫苗) strengthen their immune system and defend them against possible disease attacks.
A. Take more exercise
B. Expose yourself in the Sun
C. Routine vaccinations kill a number of diseases
D. Therefore, it is wise to take proper vitamin pills
E. Nutritious diets may reduce the risk of infections
F. You spend your childhood catching colds, flu and sore throat
G. That is why socially active people are less likely to develop common colds
Eight years ago, Al Nixon decided to work for the city's water department. From then on, he would 1 at 4:30 every morning, sitting for 2 hours on a bench with a good view of the waterfront of St.Petersburg, Florida. Nixon 2 it "life rising" because watching a 3 made him feel good before starting his day.
A year later, a woman stopped to say hello, and 4, "Seeing you sitting here every morning, I know everything is going to be OK." What she said changed Nixon's 5 on his daily routine. After that, instead of 6 straight ahead at the waterfront, Nixon started smiling at people and striking up 7 Pretty soon, many early risers began 8 him on the bench, telling him about their worries and asking him for 9 about relationships, careers, and personal problems.
"I was happy to listen," Nixon, 59, said. "I wanted them to walk away 10 they were not alone." Nixon lends a (n) 11 to whatever problem a person wants to share. A couple once 12 to talk about problems in their relationship. The husband was always working, rarely home, which was 13 their marriage. Nixon told him, "My friend, if you go on like this, you are 14 to lose your wife." The man 15 that Nixon was right and agreed that he needed to slow down.
His presence and his openness to listen have led some to nickname him the Sunshine Mayor.
China Chic, or guochao, features fancy designs mixed with elements from traditional culture. According to a report in 2021, (release) on Feb 3 by Bilibili, more than 177 million of the platform's users were in favor of videos featuring traditional culture. The (approve) reflected the way the "China Chic" phenomenon has been embraced by the younger generation in recent years.
During the 2022 Winter Olympic Games in Beijing, young athletes wore sports clothing (bear) Chinese elements such as dragons, pandas and tigers, while the designs of some competition venues (include) images like the Great Wall and auspicious (吉祥的) patterns. China Chic could also be seen during the opening and closing ceremonies, and in the designs of gifts and medals.
A China Chic artist Yu Yang said, "China Chic represents a kind of pride and (confident) in our culture. We used (follow) lifestyles promoted by the West, but as China's economy (become) stronger, the young generation gradually get to know who they are and they really want to follow." However, problems can emerge when those who create it just copy iconic patterns from culture and design the surface." Some people just simply do 'copy-and-paste' jobs. That will hurt the consumers' passion and (ultimate) ruin the trend's development. We have to deeply understand and love our culture first as designers," he said.
1）人生态度;
2）学习方法:
3）人际关系等。
注意：1）写作词数应为80左右，标题与开头已给出，不计入总词数:
2）请按如下格式在相应位置作答。
To be an Excellent Senior 3 Student
Dear teachers and students,
……
Thank you for your listening.
On our way to California, my husband Lee and I stopped at a restaurant to have lunch and stretch our legs a bit with our kids Jack and Jenny.
As we walked toward the entrance, an ugly looking doorman jumped up from a nearby bench and opened the door for us. "Good afternoon and welcome to Denny's," he said in a very joyful voice. In his hand he held a cup full of steaming coffee- which was inviting on such a cold day一but from the looks of the rest of him, it appeared that he hadn't had a good meal or a shower in a long time. Obviously he was homeless. But regardless of his appearance, he greeted us as if we were his best friends, adding as we entered, "Today's soup and sandwich special is a great deal."
Once inside, my kids whispered to me, "Mom, he smells." After we ordered our lunch, Lee and I explained the best we could, telling the kids to look beyond the dirt to the person underneath and within. As we explained, the four of us watched other customers approach the restaurant. They appeared unsure of the homeless man and many ignored him.
Seeing this rudeness truly frustrated me. When we were almost finished, I excused myself from the meal and went to the truck for my purse.
As I neared the front door, the doorman was opening it for a couple and welcoming them to the restaurant. They rushed past him and didn't even acknowledge his presence. I let the couple come through first and then said a loud, and polite ""thank you" to the doorman as I exited.
When I came back, we talked a lot. The doorman told me that the restaurant's manager wouldn't let him inside unless he purchased food. All l he could afford was coffee which, he said, didn't count as "food" according to the manager, so he had to stay outside.
注意：
1）续写词数应为150左右;
2）请按如下格式在答题卡的相应位置作答。
Seated myself, I signaled the waiter to come and decided to do something before leaving.
……
Hearing the waiter's words, the doorman approached me excitedly and thanked me for the hot meal.
