Dear John,

    My name is Amber and I want to share my story with you because what you've shared about life and positive energy has changed my life. This past year has been one of the hardest for me. I felt I was stuck in a position that had nothing to do with what I wanted to do with my life. In January, after two years of being together, my boyfriend left me.

    I read your blog every morning as I drink my coffee at work, but it wasn't until this March that I told myself "no more negativity" as you taught readers in your blog.

    Since then I've got into new habits at work to keep my energy positive. When people walk in the front door, I'm the first face they see, so I smile big when I say "good morning" to them, especially on Mondays. Instead of waiting for someone to ask me for help, I offer it with an open mind. The CEO noticed my change and offered me the executive assistant position that I wanted.

   One of the biggest things I've taken to heart from your blog is changing my opinions on my job. Yes, it was not an important position, but when I was passionate （热情的） about it, I could make my life fulfilling.

    All in all, I have to thank you somehow for having the passion to help others because it truly is inspiring to me. So thank you so much, John. My life has changed because your words pointed me in the right direction, Take care!

Sincerely ,

Amber

    Last year, I was on a plane with my friend, waiting for it to take off. The pilot's voice was heard throughout the plane: “Sorry for the delay, ladies and gentlemen. Our engines don't work. We are going to jump-start them. Once we get them going, we'll get up in the air and see what happens.”

    That was all he said. “See what happens? Shouldn't we have had a better plan than that?” At that point, I could only laugh nervously. One woman started crying: “Oh, no! We are going to crash!” There are sighs of desperation and anxiety, and we hadn't even taken off yet.

    The pilot even seemed unhappy. He told us one engine was working double time, and his plan was to get up in the air and see what happens! Then we did. We got up in the air, and what happened? Nothing. We arrived in Norfolk, and no sooner had the wheels touched down than applause burst out as everyone on the airplane breathed a sigh of relief.

    All too often, people stop achieving their goals just because they don't have a guaranteed result. But success will never be guaranteed. The best thing that you can do is to just get up in the air, and see what happens.

    If your aim is to build a business, then get up in the air and see what happens! Don't give yourself all the reasons why you can't. Do not wait until you have everything you need. You never will.

    If your goal is to start a friendship, say “Hello”, get up in the air and see what happens! The results could be very rewarding. If your goal is to learn a new skill, get up in the air and see what happens! It might not be as difficult as you think. It could be fun!

    The Summer Science Exhibition（展览）is held every year to celebrate the cutting edge of UK science. With more than twenty exhibits of hands-on science and technology and a series of encouraging talks and activities, there's something for everyone. All of our events are free and no booking is required. School groups should let our organizers know ahead of time. Meet the scientists, discover the exciting research and technology they work on and have fun with great hands-on activities.

Opening hours

    The exhibition will be open from Monday, July 2, to Sunday, July 8, 2018. More detailed opening hours will be published here in May 2018.

    Please wait in line to enter the building and pass through security（安全）, particularly during the weekend. If you are planning to attend a talk, please make sure that you leave enough time.

Food and drink

    Take a break at our café which offers a selection of hot dishes, salads, sandwiches, cakes and some soft drinks on the ground floor.

The café is open throughout the exhibition and closes 30 minutes before closing time each day.

    Wheelchair users please speak to a worker if you would like to buy food from the café.

Contact

    If you have any questions before your visit, please keep in touch with us on 020 7451 2242 or at exhibition@royalsociety.org. For schools or colleges, visit our school and college page, or contact education@royalsociety.org.

    A punctual person is in the habit of doing a thing at the correct time and is never late for anything.

    An unpunctual man never does what he has to do at the right time. He is always in a hurry and in the end loses both time and his good name. A lost thing may be found again, but lost time can never be got back. Time is more valuable than material things. In fact, time is life itself. An unpunctual person is always wasting his most important things as well as others'. An unpunctual person is always saying unhappily that he finds no time to answer letters or return calls. But the man who really has much to do is very careful of his time. He knows that he cannot finish all his work unless he carefully does every piece of work.

    Being unpunctual is the sign of disrespect towards others. If a person is invited to dinner and arrives later than the time when he should be there, he keeps all other guests waiting for him. Usually this will be thought as a great disrespect for the host and all the other guests.

    Not like a punctual person, an unpunctual one cannot do his duty wonderfully, whether it is public or personal. Imagine how it would be if those who should do important tasks failed to be on time. A man who is known to be unpunctual is never believed by his friends or fellow men.

    Public Health England (PHE) is targeting pizzas, ready meals, ready meat and takeaways. The government has also required the food industry to start using healthier food and encourage the public to opt for lower calorie foods.

    It is all part of an effort to cut calorie (卡路里) intake by 20% by 2024. The target will point to 13 different food groups, which are equal to about a fifth of the calorie taken by children. If action is not taken, PHE said, it would be prepared to ask the government to pass laws.

    PHE would be strictly monitoring progress by looking at which products people were buying and would be prepared to punish companies which do not take their duties. The government is also organizing a program encouraging adults to consume (消耗) 400 calories at breakfast and 600 each at lunch and dinner.

    At present, adults consume between 200 and 300 calories more than they should each day. PHE chief nutritionist Dr Alison Redstone said the 400-600-600 tip would make it easier for "people to make healthier choices" by being able to judge what they should be eating in each sitting.

    How many calories should we eat? It is suggested that women eat no more than 2,000 calories a day, while men should limit their intake to 2,500. For children, it depends on age. A four-year-old should consume no more than 1,300, while for teens aged 17 and 18, it is about 3,000, but overweight children are eating up to 500 calories more than that.

    Prof Russell Viner, of the Royal College of Pediatrics and Child Health, said it was a necessary move. He said, "Over the past 40 years, there had been a slow growth in food sizes, with pizzas and hamburgers simply much bigger than they were in our parents' time." The convenience of fast food at pocket money prices and the advertisement of unhealthy food and drinks to children add to the problem.

The problem of food borne metal contamination (污染) has taken on new urgency, thanks in part to a 2021 US Congressional Report detailing high levels of metals found in baby food pulled off grocery shelves. More recently, high levels of lead (铅) were discovered in children's fruit puree pouches. Now, two new studies provide information on the correlation between exposure to heavy metals in food and the risk of cancers and other serious health risks.

Food crops can absorb heavy metals from contaminated soil, air, and water. As a result, traces of dangerous heavy metals — lead, arsenic (砷) and cadmium (镉) — are found in common foods from rice and cereals to nuts and vegetables. Felicia Wu, Michigan State University food scientist, is leading several investigations to gain a better understanding of the health risks of heavy metal exposure.

In the studies, Wu and her colleague, gathered data on the dietary intake of each metal from various sources such as food and water samples and existing studies and reports. There searchers analysand the data to determine the strength of the association between dietary exposure and bad health effects. Both cancer and non-cancer health effects were considered.

Lead is a poisonous metal commonly found in old paint, water pipes, and contaminated soil. Food sources of lead include root vegetables like beets. In the study, lead showed moderate (中度的) to high risk scores for causing lung, kidney, bladder, stomach, and brain cancers. It also showed moderate to high scores for non-cancer risks.

Their initial estimates suggest that every year, more than 6, 000 additional cases of bladder and lung cancers and over 7, 000 cases of skin cancers can be attributed (归因于) to the consumption of inorganic arsenic in the United States. The researchers also found that certain food products can be associated with higher cancer risk than others. These include rice, wheat, and leafy green vegetables.