Decision-thinking is not unlike poker—it often matters not only what you think, but also what others think you think and what you think they think you think. The mental process is similar. Naturally, this card game has often been of considerable interest to people who are, by any standards, good thinkers.

    The great mathematician John von Neumann was one of the founders of game theory. In particular , he showed that all games fall into two classes : there are what he called games of “ perfect information ”,games like chess where the players can't hide anything or play tricks : they don't win by chance , but by means of logic and skills . Then there are games of “imperfect information”, like poker, in which it is impossible to know in advance that one course of action is better than another.

    One mistaken idea about business is that it can be treated as a game of “perfect information”. Quite the reverse, business, polities, life itself are games which we must normally play with very imperfect information. Business decisions are often made with many unknown and unknowable factors, which would even puzzle the best poker players. But few business people find it comfortable to admit that they are taking a chance, and many still prefer to believe that they are playing chess, not poker.

    Most of us would be traveling for the rest of our lives if traveling abroad were not so expensive. But there is no need for you to cut down on the number of holidays you're having this year. Below are some of the cheapest places to travel to this year.

    Sri Lanka

    Great seafood, beautiful beaches, and amazing jungles await you in Sri Lanka. It is definitely one of the cheaper places to travel to as well. It will be possible for you to live in high-class hotels and resorts for as little as 70 dollars a night! If you don't want to spend that much money, you can find hostels, and smaller hotels for as little as 20 dollars a day. You can just spend the day exploring Anuradhapura or go adventuring in Habarana Lake as well!

    Hungary

    It might be surprising to see Hungary on the list of cheap places to travel to this year. It is located in the most expensive continent on the earth, after all. However, Hungary is the country where you get rooms for as little as 16 Euros, and beer for about 4 Euros each! This is definitely a bargain! You can get a travel card to use the public transport throughout the country, and save quite a few dollars on that as well. Spend a few nights in Budapest or head out to the northern hills where you can hike and swim in the clear lakes!

    Greece

    There was a time when Greece was unbelievably expensive, but due to its recent economic problems, Greece has become quite cheap to travel to. Price of accommodation and food is at an all-time low, so this might definitely be a great time for you to visit! There are some areas of the country that will be expensive like Santorini or Mykonos, but if you just want to explore local Greek culture, you can walk on the streets of Greece, or adventure across the smaller islands around like Kefalonia or Piraeus or Los!

    National Coal Mining Museum

    Wacky Wednesdays—the perfect way to entertain the kids under 5!

    Each week during term-time from 10:15-l1:00 we combine storytelling, singing and craft（工艺）activities—the perfect opportunity to drop in and have a good time with your under-5s.

    Designed for children from 9 months.

    Doors open early at 9:30, so come and enjoy a coffee, juice and cake before the event starts!

    Sign in from 10 for a 10:15 start.

    Only 20 children are expected to take part in the event (we prepare crafts for 20). This makes it enjoyable for all. On very few occasions when too many kids want to join in there are always plenty of other things to do at the Museum.

    Why not make a day of it?

    ▲Stay for lunch in our family-friendly cafe

    ▲Explore the Nature Trail

    ▲Discover our indoor soft play area for under-5s

    ▲Play in the wonderful NEW Adventure Playground

    ▲Visit the small horses and our Clydesdale Finn

    ▲Download the iSPY Explore App and explore the Museum together

    Each event starts at 10:15 and finishes at 11:00.

    2017

    Sept 13th-Oct 18th                        Nov 1st-Dec 6th

    Wacky Wednesday Christmas Special 13th Dec (Payment & Booking Required)

    2018

    Jan 10th-Feb 14th                        Feb 28th-Mar 28th

    Apr 18th-May 23rd                        Jun 6th-July 18th

    Free entry, but we welcome donations to cover the cost of materials.

    Sometimes people add to what they say even when they don't talk. Gestures are the "silent language" of every culture. We point a finger or move another part of the body to show what we want to say. It is important to know the body language of every country or we may be misunderstood.

    In the USA, people greet each other with a handshake in a formal introduction. The handshake must be firm. If the handshake is weak, it is a sign of weakness or unfriendliness. Friends may place a hand on the other's arm or shoulder. Some people, usually women, greet a friend with a hug.

    Space is important to Americans. When two people talk to each other, they usually stand about two and a half feet away and at an angle (角度), so they are not facing each other directly. Americans get uncomfortable when a person stands too close. They will move back to have their space. If Americans touch another person by accident, they say, "Pardon me" or "Excuse me". Americans like to look at the other person in the eyes when they are talking. If you don't do so, it means you are bored, hiding something, or are not interested. But when you stare at someone, it is not polite.

    For Americans, thumbs-up means yes, very good, or well done. Thumbs-down means the opposite. To call a waiter, raise one hand to head level or above. To show you want the check, make a movement with your hands as if you are signing a piece of paper. It is all right to point at things but not at people with the hand and index finger (食指). Americans shake their index finger at children when they scold them and pat them on the head when they admire them.

    Learning a culture's body language is sometimes confusing. If you don't know what to do, the safest thing to do is to smile.

    Chester City Library offers a range of Library Special Needs services to people who don't have access to our library service in the usual way. As long as you live in Chester City, we'll provide a wide range of library services and resources including:

    Large printed and ordinary printed books            Talking books on tape and CD

    DVDs and music CDs          Magazines         Reference and information requests

    Home delivery service

Let us know what you like to read and we will choose the resources for you. Our staff will deliver the resources to your home for free. We also provide a service where we can choose the resources for you or someone instead of you choose the things from the library. You can also choose the resources you need personally.

    Talking books and captioned videos

    The library can provide talking books for people who are unable to use printed books because of eye diseases. You don't have to miss out on reading any more when you can borrow talking books from the library. If you have limited hearing which prevents you from enjoying movies, we can provide captioned videos for you at no charge.

    Languages besides English

    We can provide books in a range of languages besides English. If possible, we will request these items from the State library of NSW, Australia.

    How to join

   Contact the library Special Needs Coordinator to register or discuss if you are suitable for any of the services we provide—Tuesday, Wednesday and Thursday 9 am—5 pm on 4297 2522 for more information.

Donna Strickland was awarded the 2018 Nobel Prize in Physics jointly with Arthur Ashkin and Gérard Mourou.It's the first time in 55 years that a woman has won this famous prize, but why has it taken so long? We look at five other pioneering female physicists — past and present — who actually deserve the prize.

Jocelyn Bell Burnell

Perhaps the most famous snub (冷落): the student Bell discovered the first radio pulsars in 1967, when she was a PhD student at Cambridge.The Nobel Prize that recognised this landmark discovery in 1974, however, went to her male supervisor, Antony Hewish.Recently awarded a £2.3 million Breakthrough Prize, which she gave away to help under-represented students, she joked to The Guardian, "I feel I've done very well out of not getting a Nobel Prize."

Lene Hau

Hau is best-known for leading the research team at Harvard University in 1999 that managed to slow a beam of light, before managing to stop it completely in 2001.Often topping Nobel Prize prediction lists, could 2019 be Hau's year.

Vera Rubin

Rubin discovered dark matter in the 1980s, opening up a new field of astronomy.She died in 2016, without recognition from the committee.

Chien-Shiung Wu

Wu's "Wu experiment" helped disprove the "law of conservation of parity".Her experimental work was helpful but never honoured, and instead, her male colleagues won the 1957 Nobel Prize for their theoretical work behind the study.

Lise Meitner

Meitner led groundbreaking work on the discovery of nuclear fission.However, the discovery was acknowledged by the 1944 Nobel Prize in Chemistry, which was won by her male co-lead, Otto Hahn.