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Turn up your sound and click on the VIDEO above to see a lifesaver sparking away. ItБs a hot night in the Adirondack mountains, crickets are playing their evening sonata and IБm watching cool-blue sparks in the dark. Four tweens in their bunk beds have now independently confirmed what two minutes ago was just a rumor to us: Wint-O-Green Life Savers spark in the dark. And itБs awesome. So what causes the cool light show? When you crunch down on a candy, you shatter its sugar crystals. (Chemists define a solid crystal as a substance where each unit of matter repeats with a regular pattern. Think: or diamond) Scientists believe that the structure of a crystal determines whether or not it will emit light when broken, a phenomenon dubbed triboluminescence. Crystals in which every unit is
Dear Science,б I'm so glad that it's finally fall Б I love this weather. But as usual, I've got a cold. It seems like everyone gets sick as the seasons change. Is this true? Does Бcatching a chillБ really make you sick, or is it something else? б Are you really more likely to get sick when the seasons change? Kinda sorta. If weБre talking about colds and other upper respiratory infections, doctors say infection rates areб fairly consistent throughout the year. But there are small upticks in cold and flu contagions in fall, winter and spring Б when the weather isб chillier. [ ] Allergies definitely do rear their ugly heads when the seasons shift, because different pollens and other allergens are wafting through the air. So as spring melts into summer, you might feel crummy more often
Probably one of the most well-regarded films about urban planning is now available online. *, a 1979 documentary by, explores the successes and failures of public spaces in New York City. It was made as part of a research effort spearheaded by The Street Life Project in conjunction with the Municipal Art Society of New York. For Whyte, small urban places are Бpriceless,Б and the city street is Бthe river of lifeБwhere we come together. ...
Turkey and feeling sleepy go together like mash potatoes and stuffing on Thanksgiving. ItБs hard to have one without the other. However, contrary to popular belief, eating turkey isnБt necessarily what makes you tired. Tryptophan commonly gets the blame for your post turkey feast hangover. Tryptophan is an essential amino acid that our bodies cannot produce. Therefore, we need to get tryptophan from our diets. Foods that contain tryptophan include meat, cheese, yogurt, fish, eggs, and poultry. Every three-ounce serving of Turkey contains 250 to 310 milligrams tryptophan. Once turkey is eaten, our bodies use the tryptophan to make niacin, which is a B vitamin that produces serotonin. Serotonin is a chemical that transmits impulses between nerve cells and contributes to our wellbeing and
When the flies come through cracks in your walls or through open doors and windows it's often difficult to get out. They fly toward the light of windows, but when the windows are closed, the flies can't escape. Blow flies won't breed additional generations once inside your home, unless more animals die inside the walls or in the attic, for example. House flies, however, can lay eggs inside your garbage can before you even know you have a problem. They gravitate toward sugary liquids for food, but they'll also land on anything sitting out, including meat, which blow flies also enjoy. ...
"Come on! ALL of us are cutting math. Who wants to go take that quiz? We're going to take a walk and get lunch instead. Let's go! " says the coolest kid in your class. Do you do what you know is right and go to math class, quiz and all? Or do you give in and go with them? As you grow older, you'll be faced with some challenging decisions. Some don't have a clear right or wrong answer like should you play soccer or field hockey? Other decisions involve serious moral questions, like whether to cut class, try, or lie to your parents. Making decisions on your own is hard enough, but when other people get involved and try to pressure you one way or another it can be even harder. People who are your age, like your classmates, are called peers. When they try to influence how you act, to get you
Why do we need biodiversity? Each and every species has a particular function in an ecosystem. Some species can capture energy in various forms: for example they can produce organic material, contribute to the nutritive system of the ecosystem, control soil erosion, act as a protection from pollution of the atmosphere and regulate the climate. Ecosystems contribute to improving the production of resources, as for example, soil fertility, pollination of plants and decomposition of vegetables and animals. They also carry out real services such as: purifying the air and water, moderating the climate and controlling the rain or drought, and other environmental disasters. Obviously all these important functions are fundamental for human survival. The more varied the ecosystem is, i. e. the
While sending flowers to the funeral home is a common and thoughtful gesture in many parts of the county, you should not send flowers to a Jewish funeral. Jewish funerals are quite solemn and often occur within 24 hours of the time of death. The family is in mourning, and this is not a time to celebrate the life of the deceased. The Jewish funeral takes place as soon after death as possible, although it may be delayed to allow time for planning or to allow mourners to travel. The body is washed according to ritual tradition and buried in a simple wooden casket, without embalming. The immediate family, including parents, children and siblings observe a seven day period of intense mourning, or shivah, in which the family remains at home, prayers are said, and mourning practices are