We once had a poster competition in our fifth grade art class.

    “You could win prizes,'' our teacher told us as she wrote the poster information on the blackboard. She passed out sheets of construction paper while continuing, “The first prize is ten dollars. You just have to make sure that the words on the blackboard appear somewhere on your poster.”

    We studied the board critically. Some of us looked with one eye and held up certain colors against the blackboard, rocking the sheets to the right or left while we conjured up our designs. Others twisted their hair around their fingers or chewed their erasers while deep in thought. We had plans for that ten-dollar grand prize, each and every one of us. I'm going to spend mine on candies, one hopeful would announce, while another practiced looking serious, wise and rich.

    Everyone in the class made a poster. Some of us used parts of those fancy paper napkins, while others used nothing but colored construction paper. Some of us used big designs, and some of us preferred to gather our art tidily down in one corner of our poster and let the space draw the viewer's attention to it. Some of us would wander past the good students' desks and then return to our own projects with a growing sense of hopelessness. It was yet another grown-up trick of the sort they seemed especially fond of, making all of us believe we had a fair chance, and then always — always — rewarding the same old winners.

    I believe I drew a sailboat, but I can't say that with any certainty. I made it. I admired it. I determined it to be the very best of all of the posters I had seen, and then I turned it in.

    Minutes passed.

    No one came along to give me the grand prize, and then someone distracted me, and I probably never would have thought about that poster again.

    I was still sitting at my desk, thinking, What poster? when the teacher gave me an envelope with a ten-dollar bill in it and everyone in the class applauded for me.

    Their cheery song brightens many a winter's day. But robins are in danger of wearing themselves out by singing too much. Robins are singing all night一as well as during the day, British-based researchers say.

    David Dominoni, of Glasgow University, said that light from street lamps, takeaway signs and homes is affecting the birds' biological clocks, leading to them being wide awake when they should be asleep.

    Dr Dominoni, who is putting cameras inside nesting boxes to track sleeping patterns, said lack of sleep could put the birds' health at risk. His study shows that when robins are exposed to light at night in the lab, it leads to some genes being active at the wrong time of day. And the more birds are exposed to light, the more active they are at night.

    He told people at a conference, "There have been a couple of studies suggesting they are increasing their song output at night and during the day they are still singing. Singing is a costly behaviour and it takes energy. So by increasing their song output, there might be some costs of energy."

    And it is not just robins that are being kept awake by artificial light. Blackbirds and seagulls are also being more nocturnal. Dr Dominoni said, "In Glasgow where I live, gulls are a serious problem. I have people coming to me saying `You are the bird expert. Can you help us kill these gulls?'.During the breeding(繁殖)season, between April and June, they are very active at night and very noisy and people can't sleep."

    Although Dr Dominoni has only studied light pollution, other research concluded that robins living in noisy cities have started to sing at night to make themselves heard over loud noise.

    However, some birds thrive(兴旺)in noisy environments. A study from California Polytechnic University found more hummingbirds in areas with heavy industrial machinery. It is thought that they are capitalising on their predators(天敌)fleeing to quieter areas.

    Time wasters are real enemies of success. Time wasters could be people, events or habits that lead to the opposite path away from our goals. The most important starting point in removing the time wasters in life is to know about them. We need to sit down and analyze the activities which take our time.

    Start by making a list of our activities and sort out the neither urgent nor important ones. Sometimes it could be a simple addiction to a TV Soap Opera, constant distractions, or even one of our core （核心的）activities that we are not excellent at doing. We can, for instance, imagine that we are a business owner and we keep sabotaging our business deals, leading the company into great financial problems. It may be time for us to have our associates do the marketing while we concentrate on the areas we are best in. The next thing would be to make sure that we plan our daily activities. One of the obvious reasons is that we will have an upper hand in fighting against time wasters in our schedule. If what we want to do or what we don't want to do becomes clear, our focus is strengthened.

    Moreover, when we think of people we spend time with, we are sure to notice that some have a more positive impact on our success while others have a negative one. It is important to be able to distinguish them especially with regard to our schedule. While we do not advocate for everyone to throw away relationships, it is good to know that helping a friend who is emotionally disturbed can wait till dinner time. Finally, do the same to our habits. List all the habits and addictions that take any amount of our time. Then, take a little time to straighten them out in line with their importance and urgency.

    Depending on our analysis, kill those that are harmful to our goals in life.

    As Internet users become more dependent on the Internet to store information, are people remember less？If you know your computer will save information, why store it in your own personal memory, your brain？Experts are wondering if the Internet is changing what we remember and how.

    In a recent study, Professor Betsy Sparrow conducted some experiments. She and her research team wanted to know the Internet is changing memory. In the first experiment, they gave people 40 unimportant facts to type into a computer. The first group of people understood that the computer would save the information. The second group understood that the computer would not save it. Later, the second group remembered the information better. People in the first group knew they could find the information again, so they did not try to remember it.

    In another experiment, the researchers gave people facts to remember, and told them where to find the information on the Internet. The information was in a specific computer folder(文件夹). Surprisingly, people later remember the folder location better than the facts. When people use the Internet, they do not remember the information. Rather, they remember how to find it. This is called "transactive memory (交互记忆)".

    According to Sparrow, we are not becoming people with poor memories as a result of the Internet. Instead, computer users are developing stronger transactive memories; that is, people are learning how to organize huge quantities of information so that they are able to access it at a later date. This doesn't mean we are becoming either more or less intelligent, but there is no doubt that the way we use memory is changing.

    Many of you may have used Siri, a voice assistant of US tech company Apple. You only have to say "hey Siri" and it will answer to your command. However, we may be sacrificing our privacy to enjoy this convenience.

    According to a recent report by the Guardian, Siri can be accidentally triggered and start recording private conversations, such as discussions between doctors and patients. Some of these recordings are then given to workers outside the company to review.

    Apple claimed the data was used to help Siri improve, but users were not informed of this measure in the first place.

    Apple's Siri is not the only voice assistant to come under fire.

    In 2018, Alexa, a voice assistant developed by US tech company Amazon, recorded a private conversation between a couple and sent it to a stranger without their permission.

    These issues deepened concerns that tech companies are infringing users' rights of privacy.

    Many people have long feared that tech companies are listening and collecting data from private conversations, reported Forbes. Using this data, third party companies could then paint an accurate picture of users' habits and preferences in order to serve them more targeted advertisements, or even worse, sell this private data.

    Despite this risk, the popularity of voice assistant seems to be unstoppable.

    "In the near future, everything from your lighting to your air-conditioning to your refrigerator, your coffee maker, and even your toilet could be wired to a system controlled by voice," commented The Atlantic.

    Colin Horgan wrote on the blog site Medium that he believed people's daily lives will soon become a source of data.

    "The sounds of our homes, the symphony of life – laughing, crying, talking, shouting, sitting in silence – will no longer be considered memories, but data," he wrote.

    To deal with the issue, Blake Morgan, reporter for The Atlantic, believed that the answer is transparency.

    "All companies need to have messaging ready to explain to customers what they do with private data," she wrote on The Atlantic.

    Lost Huawei

    Unexpectedly, I lost my white Huawei in Midtown on Friday night. It had a blue green cover on it. There are many pictures of my son in it, and I'm heartbroken. Please return, no questions asked. Reward. Reply to: -2652255359@craigslist.org

    Do you need a babysitter that you can trust?

    My name is Tina. I am a responsible babysitter that you can trust. If you are looking for someone dependable and affordable I am that person! I HAVE MORE THAN 30 YEARS OF EXPERIENCE (including disabled children)! I am a retired Home Health Aid and absolutely love children. I work with my sister Iris who has also 20+years as a teacher's assistant. WE LOOK FORWARD TO MEETINC YOU! Available 24 hours and flexible with fees! I am fully bilingual—Spanish/English. Please email me or call 712-867-7688.

    I BABYSIT ONLY AT MY HOME.

    I accept children from all ages. Fee starts from $100-$150 a week depending on the hours. I am very flexible and my fee can change. Feel free to contact me via email or on my cell phone 566-67-1873 and we can work something out.

    Part-time Chinese Babysitter Wanted

    Part-time Chinese speaking babysitter needed to assist with one-year-old twins and to perform some light house work as needed. Assistance needed Fridays and occasional weekends. Please provide your salary expectation. College students are welcome to apply.

    Reply to: comm-encbq-2652113885 @craigslist.org