1 . Researchers have long known that the brain links kinds of new facts, related or not, when they are learned about the same time. For the first time, scientists have recorded routes in the brain of that kind of contextual memory, the frequent change of thoughts and emotions that surrounds every piece of newly learned information.

The recordings, taken from the brains of people awaiting surgery for epilepsy (癫痫), suggest that new memories of even abstract facts are encoded (编码) in a brain-cell order that also contains information about what else was happening during and just before the memory was formed.

In the new study, doctors from the University of Pennsylvania and Vanderbilt University took recordings from a small piece of metal implanted in the brains of 69 people with severe epilepsy. The implants allow doctors to pinpoint the location of the flash floods of brain activity that cause epileptic happening. The patients performed a simple memory task. They watched a series of nouns appear on a computer screen, and after a brief disturbance recalled as many of the words as they could, in any order. Repeated trials, with different lists of words, showed a predictable effect: The participants tended to remember the words in groups, beginning with one and recalling those that were just before or after.

This pattern, which scientists call the contiguity effect, is similar to what often happens in the card game concentration, in which players try to identify pairs in a row of cards lying face-down. Pairs overturned close are often remembered together. The way the process works, the researchers say, is something like reconstructing a night’s activities after a hangover: remembering a fact (a broken table) recalls a scene (dancing), which in turn brings to mind more facts, like the other people who were there.

Sure enough, the people in the study whose neural (神经) updating signals were strongest showed the most striking pattern of remembering words in groups. “When you activate one memory, you are reactivating a little bit of what was happening around the time the memory was formed, and this process is what gives you that feeling of time travel,” said Dr Michael J. Kahana.

3 . Nowadays, the world is slowly becoming a high-tech society and we are now surrounded by technology. Facebook and Twitter are innovative tools; text messaging is still a somewhat existing phenomenon and even e-mail is only a flashing spot on the screen when compared with our long history of snail mail. Now we adopt these tools to the point of essentialness, and only rarely consider how we are more fundamentally affected by them.

Social media, texting and e-mail all make it much easier to communicate, gather and pass information, but they also present some dangers. By removing any real human engagement, they enable us to develop our abnormal self-love without the risk of disapproval or criticism. To use a theatrical metaphor (隐喻), these new forms of communication provide a stage on which we can each create our own characters, hidden behind a fourth wall of tweets, status updates and texts. This unreal state of unconcern can become addictive as we separate ourselves a safe distance from the cruelty of our fleshly lives, where we are imperfect, powerless and insignificant. In essence, we have been provided not only the means to be more free, but also to become new, to create and project a more perfect self to the world. As we become more reliant on these tools, they become more a part of our daily routine, and so we become more restricted in this fantasy.

So it is that we live in a cold era, where names and faces represent two different levels of closeness, where working relationships occur only through the magic of email and where love can start or end by text message. An environment such as this reduces interpersonal relationships to mere digital exchanges.

Would a celebrity have been so daring to do something dishonorable if he had had to do it in person? Doubtful. It seems he might have been lost in a fantasy world that ultimately convinced himself into believing the digital self could obey different rules and regulations, as if he could continually push the limits of what’s acceptable without facing the consequences of “real life.”

5 . Magazines make great reading materials for kids. Libraries often have a large selection of periodicals (期刊) for every age group and reading level, and for many areas of interest. And some magazines may even have issues going back years and even decades! Below is a list of some of them!

It is about finding the bright side of life as a military kid! Inside each quarterly issue, your child will encounter inspiring stories, articles, and photographs! (8 to 16 years)

With articles, folk tales, and hands-on projects, Faces magazine takes young readers around the world for an honest and objective view of how children in other regions live. (9 to 14 years)

Make magazine publishes tested projects, skill-building tutorials, in-depth reviews and inspirational stories, accessible by all ages and skill ranges. (9 to 18 years)

Brio magazine for teen girls has a fresh new look that includes more pages filled with inspiring profiles, cultural insights, health & beauty tips, faith-filled features and added fun! (13 to 18 years)

Please note: Though all the magazines on this list are written for children, some issues may contain content that you may feel inappropriate for your child. As always, please review all reading materials before giving them to your child to read.

6 . If you think about World Heritage Sites, you probably think of places associated with ancient art and culture and historical buildings. And of course, many of these are on the World Heritage List (WHL). These include remains of ancient cultures like Cuzco in Peru or the rock city of Petra in Jordan as well as old city centers such as Rome in Italy. Also common are places of artistic or cultural significance, like the Stonehenge stone circle in England. But the WHL contains a lot of sites that are not so obvious. Let’s look at a few of the more unusual sites on the WHL and why it is important to preserve them.

Citadel of Haiti

These monuments were built at the end of the 19th century when Haiti became independent and the many thousands of black slaves in Haiti were free for the first time. These ex-slaves built the monuments, which the WHL describes as “a universal symbol of liberty”.

Borders of France and Spain

This is an area of great natural beauty and the mountains have many interesting geological formations.

But it is also an area of small farms. The WHL has listed the site because it shows us about past European society through its landscape of villages, farms, fields, up land pastures and mountain roads.

The Darjeeling Himalayan Railway

This railway in India was opened in 1881 and is still operating today. It crosses a difficult area of mountain landscape and it is a great example of railway engineering. The WHL says that it is “the first, and still the most outstanding, example of a hill passenger railway.”

The city of Brasilia

Brasilia is a capital city that was created from nothing in 1956. The WHL calls it “a land mark in the history of town planning”. The different areas of the city and the buildings themselves were all designed at the same time so that they would harmonize with each other.

7 . There are many great independent bookstores in North Carolina. If you’re looking for some good books to read, you can visit the bookstores listed below.

It’s a literary meeting place right in historic downtown Hillsborough. It was opened in 2009. You can find new books, used ones or the latest works by local authors. Because it specializes in local writers, Purple Crow Books is a favorite tourist destination. It’s a great place to grab a signed copy of a book by your favorite local author.

109 West King Street, Hillsborough, NC 27278

This is an independent bookstore with friendly staff dedicated to (致力于) providing the best customer service. Founded in 1984 by Nancy Olson, the store provides a wide variety of carefully selected books, events, discussion groups and town hall meetings. The owner Lisa Poole bought the store in 2013 and is dedicated to serving the locals.

4209-100 Lassiter Mill Road, Raleigh, NC 27609

This bookstore is located in the historic Borkenhagen House in the Winter Park neighborhood of Wilmington, North Carolina. It has been finding good homes for great books since 2005. It stocks a carefully selected collection of literary and life-enhancing titles for all ages and also features locally-made cards and gift items.

4418 Park Ave, Wilmington, NC 28403

This bookstore was opened on December 21, 2013 and has been an important part of the rebirth of downtown Greensboro ever since. It features fiction and poetry along with a remarkable children’s section and a broad range of general interest titles. Within the store is a busy cafe serving coffee, wine, and beer sourced primarily from local small businesses.

304 South Elm Street, Greensboro, NC 27401

8 . When temperatures climb, many people reach for ice-cold beverages (饮料) to cool down. But others put the kettle on: Hot tea is a go-to beverage year-round in countries such as Bangladesh, China, Japan and Saudi Arabia. Many people find hot tea refreshing on hot days. Can hot drinks really cool you down on a hot day?

According to Peter McNaughton, a professor at King’s College London who studies thermoregulation (温度调节), hot drinks really can cool you down. “It seems totally counterintuitive (反直觉的，违反直觉的),” McNaughton said. “Drinking a hot drink really does make you drop your temperature if it’s not too humid out.”

“If a drink is warmer than your body at first, obviously, that drink makes you hotter,” McNaughton said. But humans, like all warmblooded animals, are constantly adjusting to maintain a consistent internal temperature. McNaughton found that hot drinks activate a receptor (接受器) in our nerves called TRPV1, which tells the body it needs to cool down. In response, humans sweat.

“Sweat pooling on skin is uncomfortable, but add a breeze or a fan, and the air blowing past helps sweat evaporate (蒸发), taking heat with it,” McNaughton said. “In general, your life depends on sweating. Sweating can help humans survive in some of the highest temperatures documented on Earth, at least in dry heat. Sweat is less effective in high humidity because the air is already full of water vapor and can’t absorb as much from the skin, that’s why in high humidity, the survivable temperature is much lower.”

A 2012 study in the journal Acta Physiologica found that when sweat fully evaporates, hot drinks can help cool people off overall, at least temporarily. That study looked at cyclists biking quickly enough to create their own breeze in a climate with no humidity: ideal conditions for sweat evaporation.

In the reverse effect, cold drinks lower body temperatures and then make the brain reduce sweating in order to bring body temperature back to its baseline. A 2018 paper suggests that with less wind, more humidity, or other barriers to effective sweating—like the heavy clothing worn by firefighters—it may make more sense to cool off by drinking crushed ice.

10 . When I was a little boy growing up, my Mom, Dad, brothers and I lived in my Nana’s old house. It was surrounded by four huge vegetable gardens. And around the house so many flowers were planted. It was so beautiful there in the spring and summer. That wasn’t all, though. On the back porch Nana had dozens of potted plants hanging on hooks. She watered them, talked to them and nurtured them. And in the winter she would carry them all inside and set them on shelves near the windows of our enclosed front porch. There with a little water and a lot of love she kept them alive, green, and growing even during the coldest, darkest months.

As a boy I was puzzled by all the effort she put into them. I understood the vegetable gardens. They helped to feed the family all winter long. I even understood the flowers around the house. They were pretty and smelled so sweet in the summer months. The reason she put so much effort into caring for those potted plants, however, eluded me. They didn’t give us any food and they rarely had any flowers on them. They remained a mystery to my child’s mind.

Now as I’ve grown older I am beginning to understand why my Nana had those potted plants. It is the same reason I have so many pictures of sunrises and forests hanging in my home. They remind me during the dark, cold, winter months full of bare trees and yellow grass that light, love, and growth still exist. They remind me that Spring will come again. They remind me that God loves us and is still with us even when the earth doesn’t show it.

Today I see Nana’s potted plants in a new light. They are worth every bit of the love and care she put into them. But what tells me most about light and love is Nana herself. She is light to my soul even in my darkest times. And her love lives on in my heart even if she is in Heaven. May we all learn to love as she loved, shine as she shined, and live as she lived.