Next time a customer comes to your office, offer him a cup of coffee. And when you're doing your holiday shopping online, make sure you're holding a large glass of iced tea. The physical sensation（感觉）of warmth encourages emotional warmth, while a cold drink in hand prevents you from making unwise decisions—those are the practical lesson being drawn from recent research by psychologist John A. Bargh.

    Psychologists have known that one person's perception（感知）of another's “warmth” is a powerful determiner in social relationships. Judging someone to be either “warm” or “cold” is a primary consideration, even trumping evidence that a “cold” person may be more capable. Much of this is rooted in very early childhood experiences, Bargh argues, when babies' conceptual sense of the world around them is shaped by physical sensations, particularly warmth and coldness. Classic studies by Harry Harlow, published in 1958, showed monkeys preferred to stay close to a cloth “mother” rather than one made of wire, even when the wire “mother” carried a food bottle. Harlow's work and later studies have led psychologists to stress the need for warm physical contact from caregivers to help young children grow into healthy adults with normal social skills.

    Feelings of “warmth” and “coldness” in social judgments appear to be universal. Although no worldwide study has been done, Bargh says that describing people as “warm” or “cold” is common to many cultures, and studies have found those perceptions influence judgment in dozens of countries.

    To test the relationship between physical and psychological warmth, Bargh conducted an experiment which involved 41 college students. A research assistant who was unaware of the study's hypotheses（假设）, handed the students either a hot cup of coffee, or a cold drink, to hold while the researcher filled out a short information form: The drink was then handed back. After that, the students were asked to rate the personality of “Person A” based on a particular description. Those who had briefly held the warm drink regarded Person A as warmer than those who had held the iced drink.

    “We are grounded in our physical experiences even when we think abstractly,” says Bargh.

    The Guggenheim Museum attempts to help educators connect students with art. It offers programs for educators, including free arts curricula, professional development courses and workshops, as well as professional meet and greets that pair artists with public school teachers throughout New York City.

    Visiting with your students

    The museum offers a variety of ways for educators and their students to visit, from self-guided tours to a guided experience.

    Arts curriculum online

    The Guggenheim produces free curriculum materials on exhibitions for educators to use both during school visits and in the classroom. While the material focuses on recent exhibitions, a comprehensive range of lessons cover many works and artists in the museum's collection.

    Learning through Art

    Learning Through Art sends experienced teaching artists into New York City public schools, where they work with classroom teachers to develop and facilitate art projects into the school curriculum.

    Education facilities

    Housed in the Sackler Center for Arts Education, the Guggenheim's education facilities include studio art and multimedia labs, a theater, an exhibition gallery, and a conference room.

    In earliest times, men considered lightning to be one of the great mysteries (神秘的事物)of nature. Some ancient peoples believed that lightning and thunder were the weapons (武器) of the gods.

    In reality, lightning is a flow of electricity formed high above the earth. A single flash of lightning 1.6 kilometres long has enough electricity to light one million light bulbs (灯泡).

    The American scientist and statesman, Benjamin Franklin, was the first to show the connection between electricity and lightning in 1752. In the same year he also built the first lightning rod (避雷针). This device (装置物) protects buildings from being damaged by lightning.

    Modern science has discovered that one stroke (闪击) of lightning has a voltage (电压) of more than 15 million volts (伏特). A flash of lightning between a cloud and the earth may be as long as 13 kilometers, and travel at a speed of 30 million meters per second.

    Scientists judge that there are about 2,000 million flashes of lightning per year. Lightning hits the Empire State Building in New York City 30 to 48 times a year. In the United States alone it kills an average (平均数) of one person every day.

    The safest place to be in case of an electrical storm is in a closed car. Outside, one should go to low ground and not get under tress. Also, one should stay out of water and away from metal fences. Inside a house, people should avoid open doorways and windows and not touch wires or metal things.

    With lightning, it is better to be safe than sorry?

    Traditional Chinese medicine (TCM) is gaining global popularity. According to a government white paper, TCM has been introduced in 183 countries and regions around the world.

    Westerners' understanding of TCM, however, may be limited to acupundure，cupping and massage (针灸，拔罐和按摩). For instance, the purple, injury-like marks left on US.swimmer Michael Phelps' back from cupping for the purpose of relaxing his muscles and reducing pain became the center of attention during the Rio Olympics in 2016.

    As a matter of fact, Chinese herbs play a more important role in getting rid of diseases and keeping the body in good condition in the TCM treatment system than physical treatment. It is therefore disheartening to know that-while 103 World Health Organization member countries have given approval to the practice of acupuncture，not many recognize Chinese herbal medicine TCM falls far behind Western medicine owing partly to the slow development of Chinese herbs.

    Herbs, are made into pills, powder and soup, and the kind of herbs uscd1 their quality and quantity, and the processing of the ingredients jointly determine the effectiveness of the prescription. Compared with Western medicine, which has standardized drug production processes and treatment methods, TCM lacks standardization, with the chemical composition and functions of its medicines being unclear and their effects being unstable. Fortunately, standardization has improved in recent decades, with an increasing number of factories producing patented TCM drugs.

    Another factor that has prevented the development of TCM prescription drugs is the lack of creativity, While Western medicine-making companies come up with new products every year, TCM drug producers tend to make medicines according to prescriptions handed down from the past. Chinese chemist Tu You your's winning the 2015 Nobel Prize in Physiology or Medicine for her research into malaria(疟疾）treatment may drive creativity to some extent in China's TCM industry. However, the current state of affairs cannot be changed within a short time.

New research into a long-lived tree has shown some of the tricks that have helped it survive for thousands of years. The ginkgo(银杏树) is a huge, slow-growing tree with fan-shaped leaves, native to China, but planted in parks and gardens across the world. Some of the largest ginkgoes are said to be more than 3, 000 years old.

In order to discover how these and other trees can live for so long, scientists from the US and China studied 34 healthy ginkgoes of different ages. The team studied growth rings in each tree's trunk(树干), as well as cells(细胞) from the bark, leaves and seeds. They found that 600-year-old trees were just as healthy as 2-year-olds.

To learn more, the team then looked in detail at the DNA of nine trees aged between three and 667 years old. DNA is the chemical in the cells of plants and animals that holds instructions that tell any living thing how to grow and develop-including what to do at different times in its life At the beginning of a tree's life, DNA instructs the cells in a seedling to divide quickly so the tree grows rapidly. The cells also make special chemicals to help the young plant survive difficult situations, such as disease. As most trees grow older, their DNA tells their cells to divide more slowly (so growth slows down) and to make fewer chemical defenses(防御).

Ginkgoes, however, do things differently. The team found that although their growth finally slows, both young and old trees make protective chemicals." The secret is keeping a really healthy defense system," said researcher Richard Dixon." As ginkgoes age, they show no sign of weakening their ability to defend themselves from things like disease. "Other trees that live for a long time may have the same ability.

For all their defenses, though, ginkgoes cannot live forever--they finally meet with deadly accidents such as fire, disease and storms. While they last, however, these leafy trees are some of the most beautiful trees in the world.

Many on the Mountain

We often see people waiting in lines at supermarkets, theatres and amusement parks. Surprisingly, some people even have to wait in line at the summit (顶峰) of Qomolangma in the Himalayas. 

The best time to climb the Himalayas is during the months of April and May, as well as some days in September and October. "In these periods of recent years, the path contains rocks and deep crack from melting ice due to the warm weather, which make expeditions up the mountain more dangerous," said Apa, an experienced Nepalese guide. During this year's climbing season, crowds of climbers became stuck in a long line near the summit. The line is above the mountain's highest campsite—about 8,000 meters above sea level. 

However, most people can only spend a few minutes at the summit without extra oxygen supplies. Twenty-one mountaineers have died in the Himalayan mountains so far this year, according to Gripped, a magazine dedicated to mountain climbing. Eleven of these climbers died on Qomolangma. 

This death count marks a four-year high. Overcrowding, inexperience and poor weather have been the most common causes of death, USA Today reported. 

After these tragedies, one question remains: Why do so many people risk their lives to climb the mountain? The answer differs from climber to climber. Studies suggest that people who take risks tend to perceive themselves differently than people who avoid risky activities. But for adventurers who are drawn to the Himalayas, reaching the summit of Qomolangma is a lifelong dream, according to Discovery News. 

"Qomolangma is like a light to bugs that attracts people once they hear about it. It represents the ultimate for many people," US mountaineer Alan Arnette said. Technological advances have also encouraged more people to climb the mountain. People can get high-tech safety equipment more easily than before. And with the internet, climbers know better than ever about how to reach the summit safely, Yahoo Travel noted.