A 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 Laster 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 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 @ 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 connect achieve without generous support from individuals, corporations, and other social organizations. Visit pacificsciencecenter.org to find various ways you can support Pacific Science Center.

    A long-term American study shows the importance of early education for poor children. The study is known as the Abecedarian Project. It involved more than one-hundred young children from poor families in North Carolina.

    Half of the children attended an all-day program at a high-quality child-care center. The center offered educational, health and social programs. Children took part in games and activities to increase their thinking and language skills and social and emotional development. The program also included health foods for the children.

    The children attended the program from when they were a few weeks old until the age of five years. The other group of children did not attend the child-care center. After the age of five, both groups attended public school.

    Researchers compared the two groups of children. When they were babies, both groups had similar results in tests for mental and physical skills. However, from the age of eighteen months, the children in the educational child-care program did much better in tests.

    The researchers tested the children again when they were twelve and fifteen years old. The tests found that the children who had been in the child-care center continued to have higher average test results. These children did much better on tests of reading and mathematics.

    A few years ago, organizers of the Abecedarian Project tested the students again. At the time, each student was twenty-one years old. They were tested for thinking and educational ability, employment, parenting and social skills. The researchers found that the young adults who had the early education still did better in reading and mathematics tests. They were more than two times as likely to be attending college or to have completed college. In addition, the children who received early education were older on average, when their first child was born.

    The study offers more evidence that learning during the first months and years of life is important for all later development.

    The researchers of the Abecedarian Project believe their study shows a need for lawmakers to spend money on public early education. They believe these kinds of programs could reduce the number of children who do not complete school and are unemployed.

    England's highest main-line railway station is in serious trouble, deserted and unmanned since it was officially closed in 1970, Dent, located high in the hills of Yorkshire, wakes up on six summer weekends each year, when a special train unloads walkers, sightseers and people who simply want to catch a train from the highest station to its platforms.

    But even this limited being may soon be brought to an end. Dent station located on the Settel to Carlisle railway line, is said to be surrounded by the most beautiful scenery in the country. But no amount of scenic beauty can save the line because of the British Rail's money problems.

    It is now an open secret that British Rail sees no future for this railway line. Most of its trains disappeared some time ago. Bridges, built a century ago, are falling down. It is not alone. Half a dozen railway routes in the North of England are facing a similar threat. The problem is an old system and an almost total lack of cash to repair it. Bridges and tunnels are showing their ages, the wooden supports for the tracks are rotting（腐烂） and engines and coaches(车厢) are getting old.

    On main lines between large cities, the problem is not too bad. There lines still make a profit and cash can be found to keep them in good condition. But on the country branch line, the situation is different. As track wears out, it is not replaced. Instead speed limits are introduced, making the journey longer than necessary and discouraging travelers.

    If a bridge is dangerous, there is often only one thing for British Rail to do: go out and find money from another places. This is exactly what it did a few months ago when a bridge at Bridling station was threatening to fall down. Repairs were calculated at 200,000 pounds just for one bridge, so British Rail was pleased, and rather surprised when two local councils(理事会) offered half that amount of money.

    Louis Pasteur was born in Dole, France on December 27, 1822. His family was poor, and during his early education Pasteur was an ordinary student who enjoyed art and singing. However, when Pasteur was exposed to science as a teenager, he knew he had found his career.

    In 1838, Pasteur went to college to become a science teacher. He then became a chemistry professor at the University of Strasbourg. He got married in 1849 and had five children. However, three died young from typhoid fever (伤寒症). It was the deaths of his children that drove Pasteur to investigate the infectious disease in order to find a cure.

    During Pasteur's time, people believed that bacteria (细菌) appeared due to “spontaneous generation (自然发生)”. They thought that the bacteria just appeared out of nowhere. Pasteur earned out experiments to see if this was true. Through his experiments he proved that germs (细菌) were living things that came from other living things. They didn't just spontaneously appear. This was a major discovery in the study of biology and earned Pasteur the title of Father of Germ Theory.

    As Pasteur learned more about bacteria, he began to think they may be the cause of diseases in humans. When the French silk market was threatened by a disease to silkworms (蚕), Pasteur decided to investigate. He discovered that this disease was caused by germs. By killing them from the silkworm farms, he was able to cease the disease and save the French silk business.

    Today Louis Pasteur is known as one of the most important scientists in history. His discoveries led to an understanding of bacteria and diseases that has helped save millions of lives.

    3D printing is a recent technological development that has started making its way into the marketplace. It is a way of making 3D objects from computer models. 3D printing works by adding together layers of material. This pattern is repeated until the layers form a shape for almost any purpose. The almost unlimited possibility of 3D printing is quickly leading to a revolution in how things are made and produced. As with most technology, 3D printing may help to create things that could benefit humans. However, it could also be used to create things that could harm other people.

    One of the promising aspects (方面) of 3D printing is that it may help doctors treat patients in need. Currently 3D printing is being used to create prostheses (假体) that helps replace missing noses and eyeballs, thus greatly cutting down on the usual wait time for a new prostheses. Dentists are also using 3D printers to create custom toothbrushes for patients' teeth. The toothbrush fits a person's teeth well, which means that they get a much cleaner mouth than with regular toothbrushes. Many scientists see the potential for 3D printing to create replacement organs for people who need organ transplants. This would save lives as it remove the need for such patients to wait for an organ donation (捐献).

    Although many people believe 3D printing is a positive technology that could help humans, it may also have the opposite effect. There is a recent controversy (争议) about the ability of 3D printing to produce arms such as guns. Recently, one organization announced the plans to produce a 3D plastic gun. Anyone with the proper technology and with the determination to make a gun could potentially do so. Will the future of 3D printing provide hope or danger to humans?

What is the best part of a typical relaxing summer day? Nothing is better than sitting in an armchair with a beer and some chips in your hand, enjoying the great comfort.

The much-loved combination of beer and chips is being exploited for the first time to deal with climate change. Chips firm Walkers has adopted a technique it says will cut CO₂ emissions (排放) from its production process by 70%.

The technology will use CO₂ captured from beer processing in a brewery (啤酒厂), which is then mixed with potato waste and turned into fertilizer. It will then be spread on UK fields to feed the following year's potato crop. Creating fertilizer normally produces high CO₂ emissions, but the technology adopted by Walkers makes fertilizer without generating CO₂. So, the beer-and-chips combination performs a double function. It stops the emission of brewery CO₂ into the atmosphere — and it saves on the CO₂ normally generated by fertilizer production.

This Creative win-win solution was developed with an approval from the UK government by a 14-employee start-up called CCm. The fertilizer was experimented on potato seed beds this year, and next year Walkers will install CCm equipment at its Leicester factory to prepare for its 2022 crop.

A decision has not yet been made on which brewery Walkers will work with on this. The new technology adds to carbon-saving techniques already under way. The firm has installed an anaerobic digester (厌氧消化池), which feeds potato waste to bacteria to produce a useful gas. The gas is burned to make electricity for the chip-frying process — so this saves on burning gas or coal.

The new system will go a step further by taking away potato "cake" left after digestion — and mixing the brewery CO₂ into it to make an enriched fertilizer which will help put carbon back into the soil as well as encouraging plant growth.

It's an example of scientists finding ways to use CO₂ emissions which otherwise would increase the over-heating of the planet.