Holiday makers wanting to get away from the pressure of modern life might consider staying at a wooden hut in Sweden.

    The Kolarbyn Eco-Lodge Hotel is not for everyone. If you can't even understand the idea of living without electricity, running water, or a modern toilet, then the charm of this place will probably not appeal to you. But for anyone trying to escape the pressure and busy life of the big city or take a break from the Internet and other modern devices, this place is a paradise(乐园). Located 1 km south of Skarsjon Beach, in the middle of a pristine Swedish forest, Kolarbyn Eco-Lodge consists of 12 wooden huts with nothing but two sheepskin-covered wooden beds, and a wood stove that uses wood cut by the guests themselves.

    Self-catering breakfast, lunch and dinner consist of items like spaghetti（通心粉）, tomato sauce, bread, fruit and eggs that tourists have to cook themselves over an outside fire; there is no shower, only a nearby spring and as for toilet, visitors are encouraged to go behind a tree, or visit one of the two sheds（棚子）.

    Adding to the charm of this place is the long coal-making tradition of Kolarbyn. Locals have been building these huts from wood and mud for over 400 years, and a few of them came up with the idea of recreating a few of them in the woods as an eco-lodge to keep tradition alive in the area.

    “People visit Kolarbyn lodges because they want to experience the nature and to test sleeping in the historical huts. They want to get away from the normal life,” the owner Andreas Ahlsen said. “The huts themselves are relatively small, as if they are too big , it will destroy the nature experience.”

    July 16th was a bad day for Mr. Arthur Johnson. In the morning, he set out from his home in Santa Barbara, California. It was the start of his summer holidays and he decided to visit Wends at Las Vegas, then he hoped to go fishing in Lake Mead, 40 km from Las Vegas.

    Johnson's troubles started while he was driving happily across the Mojave Desert. His car went wrong and he tried to repair it. Then, to make matters worse, his attempts to start the car used up the battery (电池) and left it useless. After Johnson had waited an hour in the hot sun, a Canadian driver, John Williams, stopped and tried to help him. When both men failed, Williams promised to telephone a workshop to ask it to send a truck to pull the car away and repair its fuel pump.

    Johnson left the keys in his car and sat in the shade of a large tree. Soon he fell asleep. While he was sleeping, a repair truck arrived from San Pedro (the nearest town) and pulled his car away. Later on, Johnson woke up and thought that somebody had stolen his car. He started to walk back towards San Pedro but a police car stopped him to find out why he was walking in the desert.

    Johnson looked like a man wanted in Los Angels for robbery, so the police detained him at San Pedro for the night. The next day, Johnson telephoned his friends in Los Angeles. They drove to San Pedro and made the police believe that Johnson was a harmless salesman, so they set him free.

    Pacific Science Center Guide

    Visit Pacific Science Center's Store

    Don't forget to stop by Pacific Science Center's Store while you are here to pick up a wonderful science activity or souvenir to remember your visit. The store is located(位于) upstairs in Building 3 right next to the Laser Dome.

    Hungry

    Our exhibits will feed your mind, but what about your body? Our café offers a complete menu of lunch and snack options, in addition to seasonal specials. The café is located upstairs in Building 1 and is open daily until one hour before Pacific Science Center closes.

    Rental Information

    Lockers are available to store any belongings during your visit. The lockers are located in Building 1 near the Information Desk and in Building 3. Pushchairs and wheelchairs are available to rent at the Information Desk and Denny Way entrance. ID required.

    Support Pacific Science Center

    Since 1962, Pacific Science Center has been inspiring a passion(热情) for discovery and lifelong learning in science, math and technology. Today, Pacific Science Center serves more than 1.3 million people a year and brings inquiry-based science education to classrooms and community events all over Washington State. It's an amazing accomplishment and one we cannot achieve without generous support from individuals, corporations, and other social organizations. Visit pacificsciencecenter.org to find various ways you can support Pacific Science Center.

    Self-driving cars have been backed by the hope that they will save lives by getting involved in fewer crashes with fewer injuries and deaths than human-driven cars. But so far, most comparisons between human drivers and automated vehicles have been unfair.

    Crash statistics for human-driven cars are gathered from all sorts of driving situations, and on all types of roads. However, most of the data on self-driving cars' safety have been recorded often in good weather and on highways, where the most important tasks are staying in the car's own lane and not getting too close to the vehicle ahead. Automated cars are good at those tasks, but so are humans.

    It is true that self-driving cars don't get tired, angry, frustrated or drunk. But neither can they yet react to uncertain situations with the same skill or anticipation of an attentive human driver. Nor do they possess the foresight to avoid potential perils. They largely drive from moment to moment, rather than think ahead to possible events literally down the road.

    To a self-driving car, a bus full of people might appear quite similar to an uninhabited corn field. Indeed, deciding what action to take in an emergency is difficult for humans, but drivers have sacrificed themselves for the greater good of others. An automated system's limited understanding of the world means it will almost never evaluate (评估) a situation the same way a human would. And machines can't be programmed in advance to handle every imaginable set of events.

    Some people may argue that the promise of simply reducing the number of injuries and deaths is enough to support driverless cars. But experience from aviation (航空) shows that as new automated systems are introduced, there is often an increase in the rate of disasters.

    Therefore comparisons between humans and automated vehicles have to be performed carefully. To fairly evaluate driverless cars on how well they fulfill their promise of improved safety, it's important to ensure the data being presented actually provide a true comparison. After all, choosing to replace humans with automation has more effects than simply a one-for-one exchange.

Luxury symbols of China, all-inclusive cruise and Mount Fuji adventure

From the architectural riches of China to the awe-inspiring beauty of Mount Fuji, discover wonders of the world during this epic adventure, paired with hotel stays in interesting cities and an all-inclusive cruise on board Silver Muse.

Days 1-3 Beijing—Hotel Stay and Tour

Discover China's greatest treasures during a fully accompanied tour, wonder at the weaving Great Wall of China, admire the Temple of Heaven and uncover history in the Forbidden City.

Days 4-5 Xi'an—Hotel Stay and Tour

Travel by fast train to Xi'an, one of the birthplaces of Chinese civilization. Here you'll visit the Terracotta Army, one of the greatest archaeological sites in the world.

Day 6 Shanghai—Embark Silver Muse

Today you'll embark Silver Muse for your cruise to Osaka. Settle into your surroundings and choose from a wealth of dining experiences, personalise your suite to the finest detail— including your choice of perfume, toiletries and pillow—and get to know your personal butler who will keep your fridge stocked with your favourite drinks. Cruising with Silversea is simply impressive.

Days 7-9 Osaka—Disembark Silver Muse, Tokyo Hotel Stay and Tour

You'll disembark in Osaka and transfer to the airport for your flight to Tokyo. Japan's capital boasts an incredible combination of both modern and tradition as soaring neon skyscrapers gather next to ancient temples. During your three-night stay you'll embark on a fully accompanied tour of sacred Mount Fuji. Witness its splendid appearance during a ride on the Hakone Ropeway cable car, admire its quietness during a cruise trip across Lake Ashi and experience the speed of the bullet train as it whisks you back to Tokyo.

Days 10 Tokyo—Fly Home

Any schoolchild knows that a whale breathes through its blowhole. Fewer know that a blowhole is a nostril （鼻孔） slightly changed by evolution into a form more useful for a mammal that spends its life at sea. And only a dedicated expert would know that while toothed whales, such as sperm whales, have one hole, baleen （鲸须） whales, such as humpback and Rice whales, have two. 

Even among the baleen whales, the placing of those nostrils differs. In some species they are close together. In others, they are much further apart. In a paper published in Biology Letters Conor Ryan, a marine biologist at the Scottish Association for Marine Science, suggests why that might be. Having two nostrils, he argues, helps whales smell in stereo （立体空间）. 

Many types of baleen whales eat tiny animals known as zooplankton （浮游动物）， which they catch by filtering （过滤） them from seawater using the sheets of fibrous baleen that have replaced teeth in their mouths. But to eat something you first have to find it. Toothed whales do not hunt by scent. In fact, the olfactory bulb-the part of the brain that processes smell-is absent in such creatures. But baleen whales still have olfactory bulbs, which suggests smell remains important. And scent can indeed give zooplankton away. Zooplankton like to eat other tiny creatures called phytoplankton （浮游植物）. When these are under attack, they release a special gas called dimethyl sulphide, which in turn attracts baleen whales. 

Most animals have stereoscopic senses. Having two eyes, for instance, allows an animal to compare the images from each in order to perceive depth. Having two ears lets them locate the direction from which a sound is coming. Dr Ryan theorized that paired blowholes might bring baleen whales the same sorts of benefits. 

The farther apart the sensory organs are, the more information can be extracted by the animal that bears them. The researchers used drones to photograph the nostrils of 143 whales belonging to 14 different species. Sure enough, baleen whales that often eat zooplankton, such as the North Atlantic right whale, have nostrils that are farther apart than do those, such as humpback whales, that eat zooplankton occasionally. Besides allowing them to breathe, it seems that some whales use their blowholes to determine in which direction dinner lies.