Larry Ritsema was out for an early morning jog around his neighborhood one day. On a quiet street, he began to feel weak. Suddenly, everything went black. Larry fell to the ground.

    Less than a minute later, Tom Alguire passed by on his bicycle. He caught sight of a man lying on the roadside, so he jumped off his bike and ran over. He recognized Larry immediately, because he had been Larry's doctor for nearly 20 years.

    Dr. Tom felt for a pulse (脉搏) at first. Finding none, he began to give Larry first aid. It wouldn't restart Larry's heart, but it would keep the blood flowing until someone else arrive d. Tom could only hope someone would come by soon, at around six o'clock in the morning on a holiday weekend. Tom couldn't stop pressing Larry's chest to run for help — Larry's brain cells would die without the blood. And Tom didn't have a cell phone with him.

    Soon, a car did drive by. But the driver ignored Tom's appeal for help. What was he going to do? Tom was very worried. Finally, another car came down the road, driven by Michael Saliot, a U.S. Coast Guard Officer. Michael wasn't one to pass up a chance to help a person in need. He quickly dialed 911.

   Doctors then found that Larry had suffered a heart attack and there were severe blockages in two of Larry's major arteries (动脉). Only the timely arrival of Dr. Tom saved his life.

   How did Dr. Tom happen to be bicycling that morning, down that quiet street? It turned out that as Tom rode, his bike chain fell off. He spent about eight minutes fitting it back; otherwise, he would have seen nothing of Larry's problem.

    Electrical devices (仪器) could soon use power made by human energy. Scientists say they have developed an experimental device that produces electricity from the physical movement of a person walking. British scientist Max Donelan and other scientists in Canada and the United States developed the device.

    The device connects to a person's knee. As the person walks, the device captures energy each time the person slows down. To do this, the device helps with the slowing down movement of the leg. The movements of the walking person push parts of a small machine that produces electricity. Using the device, an adult walking quickly could produce thirteen watts of electricity in just a minute. Donelan says walking at that speed could produce enough power to operate a laptop computer for six minutes.

    There are several possible uses for the device. Developers say it could help people who work in areas without electricity to operate small computers. The device could also be used in hospitals to operate heart pacemakers (起搏器). It could even be used to assist in the movement of robotic arms and legs.

    The experimental version of the device weighs about one and a half kilograms, but it is too costly for most people to buy. But the researchers hope to make a lighter, less costly version. An improved version should be ready in one year.

    The developers hope the device will one day help developing countries. Nearly twenty-five percent of people around the world live without electric power.

    A similar product was invented in 2005 by Larry Rome of the University of Pennsylvania. He created a bag carried on a person's back that also produces power from walking. The knee device does not produce as much electricity as the bag. But the bag requires the walker to carry a load of twenty to thirty kilograms.

    One morning more than thirty years ago, I entered the Track Kitchen, a restaurant where everyone from the humblest(卑微的) to the most powerful came for breakfast. I noticed an empty chair next to an elderly, unshaven man, who looked somewhat disheveled. He was wearing a worn-out hat and was alone. I asked if I might join him. He agreed quietly and I sat down to have my breakfast.

    We cautiously began a conversation and spoke about a wide range of things. We never introduced ourselves. I was concerned that he might have no money and not be able to afford something to eat. So as I rose to go back to the counter and buy a second cup of coffee, I asked,

    “May I get you something?”

    “A coffee would be nice.”

    Then I bought him a cup of coffee. We talked more, and he accepted another cup of coffee, Finally, I rose to leave, wished him well, and headed for the exit. At the door I met one of my friends. He asked,

    “How did you get to know Mr. Galbreath?”

    “Who?”

    “The man you were sitting with. He is chairman of the Board of Churchill Downs.”

    I could hardly believe it. I was buying, offering a free breakfast, and feeling pity for one of the world's richest and most powerful men!

    My few minutes with Mr. Galbreath changed my life. Now I try to treat everyone with respect, no matter who I think they are, and no matter another human being with kindness and sincerity.

    It's a white Christmas in the United States today, with snow falling from Seattle to Maine.

    •Northeast

    Biting winds with snow swept the Northeast.

    Earlier, up to 15 inches of snow fell during a snow storm in Maine, while up to one foot fell in New Hampshire. Winds reached 76 mph on Cape Cod, Massachusetts, while up to 61 mph winds tore through Long Island, New York. Falling snow collected on the runways at Boston's Logan International Airport, causing temporary flight delays.

    The wind was so severe in Pennsylvania and New Jersey that the annual (重演) of George Washington and his soldiers' crossing the Delaware River was canceled, the Washington Crossing Historic Park told ABC News.

    •Midwest

    Heavy lake effect snow fell in western Michigan.

    The National Weather Service has issued a wind-chill warning and advisory (公告) from Montana to Michigan. Bitter cold air in the Midwest produced wind chills Monday morning as low as minus 48 degrees in North Dakota and minus 47 in northern Minnesota.

    As this bitter cold made its way east overnight, it was expected to move over relatively mild Great Lakes, producing intense lake-effect snow bands capabie of producing 2 to 4 inches of snow in an hour.

    •West Coast

    That storm system moved overnight through the Rockies, bringing more snow and the threat of avalanches (雪崩). The National Weather Service has issued an avalanche warning for the Wasatch Range Mountains outside Salt Lake City.

    Researchers in Australia have discovered an effective new method to capture the atmospheric carbon dioxide that is damaging our planet and transform it into something solid, making it much easier to store.

    Carbon capture isn't new, but previous methods call for the gas to be compressed into liquid and then injected underground. Widespread usage of that technology has been locked by economic and environmental concerns due to possible leaks. Instead, in a study published in Nature Communications, the group details their sustainable and cost-effective plan for transforming CO₂ into coal.

    This new process involves a liquid metal catalyst(催化剂)that is efficient in conducting electricity. CO₂ gas is dissolved in a container with some liquid. Once electricity charge is introduced, the CO₂ begins to turn into solid pieces of carbon, which can be collected and stored.

    What makes this particularly unique is that the entire process can occur at room temperature. Previous experiments have only shown a gas to solid conversion at extremely high temperature, which made it impossible on a large scale. Now, the researchers are hoping that their work will be used to create even further when it comes to carbon storage.

    In an interesting side benefit, the solid carbon also works as an electrode(焊条), which opens up a world of possibilities. "A side benefit of the process is that the carbon can hold electrical charge, becoming a super battery, so it could potentially be used as a part in future vehicles," explains Dr. Dorna Estrafilzadeh, a researcher. "The process also produces fuel as a by-product, which could also have industrial applications."

This document sets out the display standards for Glasgow Museums. This guide will help exhibition planners provide access to exhibitions in our museums. Glasgow Museums' aim is to improve access to collections by having as many items as possible on display and without physical barriers. We also try out best to protect these objects without limiting access to them.

Object Placement

·Don't place objects in such a way that they could present a danger to visitors.

·All object displays, cased or otherwise, must be viewable by all, including people who are small in figure or in wheelchairs.

Open Display

·All objects on open display must be secure from theft and damage.

·All objects identified for potential open display must be viewed and agreed on an object-to-object basis by the Security Manager of the museum.

*In some cases, 600mm may be acceptable, provided the plinth height is above 350mm.

Cased Objects

·All cased displays should fall within the general optimum（最优的）viewing band of 750-2000mm. Ensure everything is visually accessible from a wheelchair.

·Position small objects or those with fine detail in the front part of a case, with larger items behind.

·Position small items or those with fine detail no higher than 1015mm from floor level. Objects placed above this height are only seen from below by people in wheelchairs or people who are small in figure.