In the 1962 movie Lawrence of Arabia, one scene shows an American newspaper reporter eagerly snapping photos of men robbing a damaged train. One of the robbers, Chief Auda abu Tayi of the Howeitat clan, suddenly notices the camera and snatches it. “Am I in this?” he asks, before smashing it open. To the dismayed reporter, Lawrence explains, “He thinks these things will steal his virtue. He thinks you're a kind of thief.”

As soon as colonizers and explorers began taking cameras into distant lands, stories began circulating about how native peoples saw them as tools for black magic. The “ignorant natives” may have had a point. When photography first became available, scientists welcomed it as a more objective way of recording faraway societies than early travelers' exaggerated accounts. But in some ways, anthropological(人类学的) photographs reveal more about the culture that holds the camera than the one that stares back. Up into the 1950s and 1960s, many ethnographer(人种学者) sought “pure” pictures of “primitive” cultures, routinely deleting modern articles for daily use such as clocks and Western dress. They paid men and women to re-enact rituals or to pose as members of war or hunting parties, often with little regard for truthfulness. Edward Curtis, the legendary photographer of North American Indians, for example, got one Makah man to pose as a whaler with a spear in 1915 — even though the Makah had not hunted whales in a generation.

    These photographs reinforced widely accepted stereotypes that native cultures were isolated, primitive, and unchanging. For instance, National Geographic magazine's photographs have taught millions of Americans about other cultures. As Catherine Lutz and Jane Collins point out in their 1993 book Reading National Geographic, the magazine since its founding in 1888 has kept a tradition of presenting beautiful photos that don't challenge white, middle-class American conventions. While dark-skinned women can be shown without tops, for example, white women's breasts are taboo. Photos that could unsettle or disturb, such as areas of the world torn apart by war or famine, are discarded in favor of those that reassure, to conform with the society's stated pledge to present only “kindly” visions of foreign societies. The result, Lutz and Collins say, is the display of “an idealized and exotic world relatively free of pain or class conflict.”

    Lutz actually likes National Geographic a lot. She read the magazine as a child, and its lush imagery influenced her eventual choice of anthropology as a career. She just thinks that as people look at the photographs of other cultures, they should be alert to the choice of composition and images.

    A culture's values can be mirrored by its humor. Humor has been evaluated by many great minds such as Thomas Hobbes, who, In"On Nature", disliked humor," Laughter is nothing else but sudden glory arising from sudden thought of feeling far better than others." He thought humor to be a negative quality of human narrow-mindedness.

    However, Mordechai Gordon, PhD of Education, insists," Humor allows us to view the world from an angle that is amusing rather than serious." I agree with Gordon. Learning to look at the world through humor is important.

    In the United States, every four years an election occurs. Without humor as a way to express their feelings, how would Americans be willing to support the election? Television shows like "The Daily Show" have become important parts of American culture. They are mothering the masses by unconsciously inputting politics into our mouths. They make politics fun.

    Of course, politics is only one type of humor. Social humor helps people through the twists and turns of the human condition. American pop culture promotes an unhealthy self image. On the topic of self-image, Hari Kondabolu stands out. He has a joke about the popular musical group "The Pussycat Dolls", describing their hit song "Don't Cha" as a negative representation of women. He points out an obvious offence in American culture.

    A study from Loyola University of Maryland has shown that humor is one determining factor for selecting a mating partner. Amongst other things, mates look for an outstanding funny bone in a potential partner.

    Of course, humor is not always used for good purposes. Humor can be linked to vulgarity（粗俗）and racism, but, like everything else, it has potential to unite human beings by allowing us to laugh at ourselves, our failures and our connection with one another.

    Though life may seem tough and depressing at times, all I have to do is look in the mirror at my increased wrinkles（皱纹）to know that there is a comedy out there that even Chaplin wasn't aware of.

    With that in mind, remember to laugh with humanity and sometimes at humanity.

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    With online courses, anyone can gain knowledge in any field of interest for free. You can educate yourself and get a certificate after finishing the course.

Coursera

    It offers high-quality courses from top universities for free to everyone to improve your resume, advance your career, expand your knowledge, and gain your confidence. This online learning website provides courses from Princeton University, Stanford University, University of California, and University of Pennsylvania. Learn more at https://coursera.com

Udemy

    Its goal is to promote education by enabling anyone to learn online. It seeks to hugely change education by inviting millions of experts worldwide to teach and share what they know. Whether you want to learn business, arts, health, music or technology, there is a course for you. Learn more at https://udemy.com

iTunes U

    If you are a student who uses Apple devices, you will be happy to know that you have access to iTunes U, which gives you access to different educational courses from all leading universities for free! Learn more at https://iTunesU.com

Skillfeed

    If you hope to learn a new skill, or improve your Photoshop skills, it offers unlimited access to high-quality video courses from a worldwide community of instructors. You have a month's free trial, after which you will pay a monthly fee to gain unlimited access to all courses. Learn more at https://skillfeed.com

UC Berkeley

    It offers courses in Japanese, legal studies and public health. Since they are recordings of actual lectures, they are short of lecture notes and extra materials. However, each course has audio recordings of lectures through iTunes U or video recordings of lectures through YouTube. Learn more at https://ucberkeley.com

    Sharpshooters refer to those who are skilled at firing a gun and accurately hitting what they are aiming at. However, some fish are also called amazing sharpshooters. People wonder how they hit their targets without using tools? By spitting! The fish shoot so accurately that they rarely miss their target.

    These amazing fish are archerfish (印度射水鱼).There are several different types of archerfish living in Southeast Asia. They spit at their dinner to catch it. To catch dinner, a fish first sets itself in a certain place, for example just below the surface of the water. It puts the tip of its mouth so it barely breaks through the water. Then, the fish waits for an unsuspecting insect to land on a leaf or branch hanging over the water.

    When an unsuspecting, or unknowing insect lands, the fish attacks. The fish squeezes its gill (腮)covers very rapidly, which forces water into the fish's mouth. In the roof of its mouth the fish has a groove (槽）. The fish forms the small groove and its tongue into a narrow tube by pressing its tongue up against its groove. The water forced into the fish's mouth is forcefully pushed out of the fish's mouth through the tube. Archerfish have been known to send a stream up to 5 meters (16 feet). However, archerfish can only shoot insects up to 1-2 meters (3-6 feet) away due to their limited accuracy.

    When the unsuspecting insect is hit with a sudden stream of water, it is knocked into or falls into the water. Once in the water, the insect becomes dinner. Archerfish learn how to spit when they are young. They get more accurate with practice. Adult archerfish rarely miss.

    Within a meter, archerfish will often spring out of the water and grab an insect in their mouths.

    Eight Days Best of China Tour

    This tour covers two ancient capital cities of China — Beijing & Xi'an, as well as the most developed city — Shanghai. It's not overstated to call it the most classic China tour, for China's past, present and future are epitomized（成为…的缩影）in the golden triangle cities for your exploration.

    Highlights of this tour:

    Be thrilled by the grand of Great Wall, as well as the delicacy and majesty of Forbidden City and Summer Palace in Beijing.

    Experience the World Heritage Site of Terracotta Warriors in Xi'an, the ancient capital city of China.

    Feel the charm and vitality of Shanghai, the most prosperous and modernized city in China.

    Our tour — at a glance

    Day 1-4 Arrival & Beijing Tour

Two full days and a half day sightseeing covering the grand Tiananmen Square, historical Forbidden City, spectacular Temple of Heaven, manmade wonder Great Wall of China, royal park Summer Palace and traditional Hutong.

    Day 5-6 Xi'an Tour & Flight to Shanghai

    One full day to visit the incredible Terracotta Warriors, leisurely walk on the Ancient City Wall and Muslim Quarter. Before leaving for Shanghai, explore the Big Wild Goose Pagoda and Shan'xi History Museum.

    Day 7-8 Shanghai Tour & Departure

    Experience the great contrast of Shanghai by visiting the traditional Yu Garden and Jade Buddha Temple, modern and prosperous Shanghai World Financial Center, Nanjing Road and the Bund, etc.

    Start planning your tailor-made holiday by contacting one of our specialists. Once enquired, you'll get a response within 0.5-23.5 hours.

    Supercomputers which can analyse blood samples and predict which patients are likely to become seriously ill could save tens of thousands of lives a year, it was revealed last night, according to The Daily Express.

    The artificial intelligence (AI) system, developed at University College London and set to be piloted in NHS hospitals later this year, will screen "at risk" patients so doctors can take early action to prevent death or serious illness. Prof Young, a consultant surgeon at Southend University Hospital, said: "I am so excited about this form of technology." Instead of people getting sick or dying because they are not picked up in time, this will allow us to step in earlier which will save lives and an enormous amount of money. "I think the potential of AI in healthcare like this is as big as the Industrial Revolution was—and signals a completely new example in the way we manage healthcare."

    The technology is the brainchild of Dr Vishal Nangalia, a consultant at the Royal Free Hospital in London. He used AI to analyse a billion stored blood samples from 20 different UK hospital trusts dating back up to 12 years. Computers assess blood test results by picking up subtle changes in red and white blood cells, suggesting a patient is going downhill.

    He found the technique forecast outcomes of patients with kidney problems with up to 95 per cent accuracy. Traditional methods highlighting serious patient concerns picked up as few as 16 percent of patients who went on to die. "This gives us the opportunity not only to save lives but to prevent serious illness, making the health service not only safer but more efficient." Prof Young said, "Instead of waiting for people to get worse, we will be able to treat them earlier."