It might be something that you miss unless it's pointed out to you. Next time you go to a public bathroom, take a look before you sit down on the toilet seat. You won't see a circle shape, but something designed not connected in the front part: a U.

    This is an open-front toilet seat, and thanks to the American Standard National Plumbing (水管装置) Technology, it's the go-to for most public restrooms. This technology was created in 1955 and further developed by the Uniform Plumbing Technology in 1973, according to Mental Floss.

    As to the plumbing rules which fit water seats, the first two requirements are as follows:

    Toilet seats shall be of smooth, non-absorbed material.

    All Toilet seats, except those within apartment units, shall be either of the open front type or have an automatic seat cover.

    This part of the rules also clears up why you won't meet fur toilet seats in truck stop bathrooms. The reason for both of these rules comes down to health. With an open front, there's less surface area that can make incidental touch with your private regions. But what about the toilet seat covers you can use? Unfortunately, those don't offer as much protection against bacteria as you think they do.

    They were also designed with women in mind, according to Lynne Simick, the senior vice president of technology development at IAPMO. The open front of the seat is fairly good for women.

Now that you know why the public toilet seat is shaped the way it is, learn which one is the cleanest you can use.

The least-visited countries in the world

    It's every traveler's dream — a corner of the planet still undisturbed by tourists. And obviously, such places do exist. The United Nations World Tourism Organization lately reported the four least-visited countries globally.

    Liechtenstein (69,000)

    The sixth smallest country in the world is also one of the most undiscovered.

    Lying between Austria and Switzerland, Liechtenstein is an outdoor enthusiast's playground. It's the only country in the world to be totally in the Alps and a summer destination for hiking and cycling and snow-covered skiing perfection in winter, for those who can afford it.

    French Guiana (199,000)

    French Guiana is the least-visited country in South America, with some of the world's most diverse plant and animal life.

    While there is much to attract tourists to the area, not least its miles of jungle, the construction is in need of some attention.

    Montserrat (9,000)

    Once a popular holiday spot, this Lesser Antilles island has never quite recovered from a series of natural disasters. Hurricane Hugo in 1989 hit 90 per cent of the island and in 1995 the Soufriere Hills volcano erupted.

    These days, its volcano is now actually one of Montserra's main attractions, together with its beautiful beaches. Visitors can also go diving in its clear waters.

    Comoros (24,000)

    This collection of islands in the Indian Ocean near Madagascar serves as the perfect destination for those who want to get away from everyday city life.

Comoros offers beautiful volcanic scenery, fruitful forests, and remote sleepy towns. There are even some of the best undiscovered reefs(礁) just waiting to be explored by divers.

    Below is a web page from http://www.parents.com/ .

    Kid of the Year Photo Contest

    Enter your kid's photo today and win! We're giving away 52 weekly $250 prizes from Readers' Choice votes. PLUS our editors will select one entry (参赛作品) to win our grand prize of $7,000.

    Official Contest Rules

    No purchase necessary to enter or win. The Kid of the Year Photo Contest entry period begins at 12:00 a.m. March 23, 2019, and ends on January 21, 2020 (the “Entry Period”). Entries must be received by 9:00 p.m. on January 21, 2020 (“Entry Deadline”). Entries will not be acknowledged or returned.

    SPONSOR: Meredith Corporation, 1716 Locust Street, Des Moines, Iowa.

    ENTRY: There will be two methods of entry.

    Share My Entry:

    Visit http://www.parents.com/photos/photo-contests-1/kid-of-the-year/ and click the button to enter. Then complete the registration form and follow the instructions to upload one album of up to six photos of your child aged three months to eight years. Photos must be taken by entrant, non-professional, unpublished and may not have won any prize or award. Photos must be .jpeg or .bmp image formats (格式) and cannot exceed 3 MB.

    Facebook Entry:

    Visit Facebook.com/ParentsMagazine and click the Kid of 2019 tab. Fill out the registration form and upload one album of up to six photos of your child aged three months to eight years. You may provide one description and one album title that will be applied to all photos. Photos must be taken by entrant, non-professional, unpublished and may not have won any prize or award. Photos must be .jpeg or .bmp image formats and cannot exceed 3 MB.

    This promotion is in no way sponsored, supported or run by, or associated with Facebook. You are providing your information to Parents Magazine and not to Facebook. The information you provide will only be used to run the promotion and register for Parents.com.

    Photos must not contain material that infringes the rights of another, including but not limited to privacy, publicity or intellectual property rights, or that constitutes copyright violation. Photos must not contain brand names or trademarks.

    LIMIT: One entry per household, per eligible (有资格的) child, per week. One weekly prize per child. For entries of more than one eligible child in the household, the entry process must be completed separately for each child. No group entries.

    On a recent night, while I was busy thinking about important social issues, like what to do over the week﹣end and who to do it with, I overheard my parents talking about my future. My dad was upset not the usual stuff that he and Mom and, I guess, a lot of parents worry about like which college I' m going to, how far away it is from home. Instead, he was upset about the world his generation is turning over to mine, a world he fears has a dark and difficult future if it has a future at all.

    "There will be a disease that kills millions, a disastrous energy crisis, a horrible worldwide depression and a nuclear explosion set off in anger."

    As I lay on the living room couch, listening to their conversation, starting to worry about the future my father was describing, I found myself looking at some old family photos.  There was a picture of my grandfather who was a member of the class of 1942, the war class. Next to his picture were photos of my great﹣grandparents. Seeing those pictures made me feel a lot better. I believe tomorrow will be better than today — that the world my generation grows into is going to get better, not worse. Those pictures helped me understand why.

    I considered some of the awful things my grandparents and great﹣grandparents had seen in their lifetimes: two world wars, killer flu, segregation（隔离） , a nuclear bomb.  But they saw other things, too, better things: the end of two world wars, passage of the civil rights laws.

    I believe that my generation will see better things, too that we will witness the time when AIDS is cured and cancer is defeated. I will see things as incredible to me today as the internet to my father when he was 16.

    “Who made your T-shirt?” A Harvard University student raised that question. Piertra Rivoli, a professor of business, wanted to find the answer. A few weeks later, she bought a T-shirt and began to follow its path form Texas cotton, to Chinese factory and to charity bin (慈善捐赠箱). The result is an interesting new book, The Travels of a T-shirt in the Global Economy.

    Following a T-shirt around the world in a way to make her point more interesting, but it also frees Rivoli from the usual arguments over global trade. She goes wherever the T-shirt goes, and there are surprises around every corner. In China, Rivoli shows why a clothing factory, even with its poor conditions, means a step towards a better care for the people who work there. In the colorful used-clothing markets of Tanzania, she realizes that, “it is only in this final stage of life that the T-shirt will meet a real market,” where the price of a shirt changes by the hour and is different by its size and even color. Rivoli's book is full of memorable people and scenes, like the noise, the bad air and the “muddy sweet smell of the cotton,” she says. “Here in the factory, Shanghai smells like shallow water Texas.”

    Rivoli is at her best when making those sorts of unexpected connections. She even finds one between the free traders and those who are against globalization. The chances opened up by trade are vast, she argues, but free markets need the correcting force of politics to keep them in check. True economic progress needs them both.

    Shakespeare's Birthplace and Exhibition of Shakespeare's World

    Welcome to the world-famous house where William Shakespeare was born in l564 and where he grew up. The property (房产) remained in the ownership of Shakespeare's family until 1806. The House has welcomed visitors travelling from all over the world, for over 250 years.

    Enter through the Visitors' Centre and see the highly-praised exhibition Shakespeare's World, a lively and full introduction to the life and work of Shakespeare.

    Stand in the rooms where Shakespeare grew up.

    Discover examples of furniture and needlework from Shakespeare's period.

    Enjoy the traditional English garden, planted with trees and flowers mentioned in the poet's works.

    The Birthplace is within easy walking distance of all the car parks shown on the map; nearest is Windsor Street (3 minutes' walk).

    The House may present difficulties but the Visitors' Centre, its exhibition, and the garden are accessible (可进入的) to wheelchair users

    The Shakespeare Coffee House (opposite the Birthplace).