Saturday November 25, 2017

American Elementary School Offers Living Science Lessons to children

The innovative feature about the school is that whole building turns into a teaching tool or open laboratory where kids can’t help but learn about science and its uses

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Image Source : wikipedia

ARLINGTON, VIRGINIA— Discovery Elementary School is a school which truly understands the importance of the science. This elementary school based in America uses zero traditional energy and makes use of onsite renewable energy sources.

The innovative feature about the school is that whole building turns into a teaching tool or open laboratory where kids can’t help but learn about science and its uses. The school’s emphasis on science is so strong that kids learn about food waste management in cafeteria and in playground where they see renewable energy in action.

“Every single roof surface on the building is covered with the solar panels, the energy collected is then converted to alternating current which is put back into the grid” Said Greg Rusk, instructional technology coordinator.

An elementary school in US. Image source: Flicker
An elementary school in US. Image source: Flicker

More than three-fourth of the building has glass walls to increase the sun light coming into the building and maximise the use of day light. The use of solar tubes and highly efficient led has resulted in reduction of energy used as well for lighting the core areas of the building where sun light cannot reach.

The sealing also contain noise panels to reduce the overall noise level in the building.

Grey says “It a very open building, so there is large sound deflection and so the panels are in placed on the ceiling to absorb some of that sound to keep students  focused on learning.”

The school also has an inbuilt slide which can be used by the students to reach to different class with some fun. Every classroom has different type of seating to give students and teacher personal learning space.

“This kind of open building where it is highly configurable sort encourages students to work together and teachers are creating projects that help student understand the value of working together to solve bigger problems” explains Greg.

https://www.youtube.com/watch?v=_nJTRpgwcnQ

A student named Anna investigated the geothermal wells under the playground which captures energy from the Earth’s crust.

Anna says “I learned like where they were , how deep they were how they helped in that zero energy and how they played the part. If you are just reading science , you have pictures and examples but its also kind of cool to see them real life”

Erin Ruso, principle of the Discovery elementary says “ we are just beginning to learn about the building and to incorporate, how that can enhance student learning. So we always do say we are a work in progress.”

-by Bhaskar Raghavendran

Bhaskar is a graduate in Journalism and mass communication and a reporter at NewsGram. Twitter: bhaskar_ragha

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Thanksgiving Day Across the World

Thanksgiving Day is celebrated across the world and for each country, it has its own tale and tradition around food and days.

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Thanksgiving Day celebrations
Happy Thanksgiving Day, Wikimedia Commons

Thanksgiving Day. The name stands for itself as the day to give thanks and is celebrated as a national holiday in many countries like United States of America, Canada, Netherlands, Philippines, Grenada, Liberia while similarly named festival exists in Germany, Japan, and United Kingdom.
Thanksgiving holiday remains a day to give thanks at the close of the harvest season.

America
The official date for the American Thanksgiving that exists today was set by President Roosevelt to be on the fourth Thursday in November instead of the last Thursday in November as decided by President Lincoln as thanksgiving date.
But their thanksgiving is surrounded by a debate over the nation’s first celebrations and the two places embroiled in this debate are New England and Virginia as both the places provide certain proofs of being the spot for nation’s first celebrations for Thanksgiving.

Canada
Canadian Thanksgiving tradition is celebrated in the true spirit of giving thanks at the close of the harvest season. It is believed that due to the geographical differences from the USA, Canada’s Thanksgiving arrives on the second Monday in October as that is the close of their harvest season.

But in countries like Liberia, Netherlands, and Grenada, it is not just a day to give thanks at the close of the harvest season.

Liberia
In Liberia, Thanksgiving holiday is celebrated to mark the freedom from black slavery by the U.S.A. The Thanksgiving day’s date remains on the first Thursday of November and has been a tradition since 1820.

Netherlands
Netherlands celebrate thanksgiving to mark to commemorate the Pilgrims who had migrated and became residents of the city of Leiden and died at Pieterskerk. To commemorate the hospitality, the thanksgiving, a non-denominational Thanksgiving Day is celebrated as the same as American Thanksgiving Day’s morning.

But there are some countries like the Philippines where the tradition of Thanksgiving only arrived with the Americans due to it being an American colony in the early 20th century but the tradition of Thanksgiving there had seemed to die down.

Food:
The American Thanksgiving seems to dominate the Thanksgiving menu when it comes to this holiday. Their famous turkey, stuffing, cranberry sauce, gravy, pies, mashed potatoes, and yams are signature dishes related to this day.

Black Friday:
Not only food, American Thanksgiving has also made Black Friday, an informal day following the Thanksgiving Day to mark the beginning of their country’s Christmas season sales and it has been in the history books since 1952 such that it has become a tradition of its own now.

Thanksgiving Day remains an occasion for many families to get back together and celebrate this holiday in the spirit of one while giving the rise to the excitement of upcoming Christmas also which remains barely a month away from Thanksgiving day.

Samridhi Nain is a student of Philosophy (Hons.) from University of Delhi.

 

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Study: Drinking and Smoking can cause Problems to the Dental Fillings

Failure of Dental fillings in smokers and alcohol drinkers.

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Smoking causes failure of Dental fillings
Smoking causes failure of Dental fillings. Pixabay
  • Indulging in smoking or drinking alcohol may not only damage your teeth but also lead to increased incidences of failure in dental fillings, warned researchers.

The findings, led by researchers from the University of Pittsburgh, showed that within two years of the dental procedure, Dental fillings failed more often in patients who drank alcohol, while the overall filling failure rate was higher in men who smoked.

Furthermore, people with a difference in the gene for matrix metalloproteinase (MMP2) — an enzyme found in teeth — were at increased risk of Dental filling failure.

This could be because MMP2 might be able to degrade the bond between the filling and the tooth surface, potentially leading to failure, the researchers said.

The results, published in the journal Frontiers in Medicine, suggest that genetic analysis might help dentists to personalize treatments for their patients, which could lead to improved outcomes.

“A better understanding of individual susceptibility to dental disease and variation in treatment outcomes will allow the dental field to move forward,” said Alexandre Vieira, a researcher from the varsity.

“In the future, genetic information may be used to personalize dental treatments and enhance treatment outcomes,” Vieira added.

For the study, the team from America and Brazil analyzed dental records of 807 patients.
Fillings can fail for a variety of reasons, including re-emergence of the initial tooth decay or the filling becoming detached.

The researchers also examined if newer composite resin Dental fillings are as durable as traditional amalgam fillings, which have been in use for more than 150 years but which contain mercury, a toxic metal.

The researchers found that overall, there were no major differences between patients receiving amalgam or composite Dental fillings in terms of filling failure rates. (IANS)

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Astronomers discovered Sun-like star that devoured its own planets

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sun
Astronomers discovered Sun-like star that devoured its own planets

New York, Oct 13: Astronomers have discovered that a Sun-like star lurking around 350 light-years away consumed the rocky equivalent of 15 Earths.

Dubbed Kronos after the child-eating Titan of Greek mythology, the star is the clearest and most dramatic case yet of a Sun-like star consuming its own planets, said Semyeong Oh, astrophysicist at Princeton University in New Jersey and lead author of the study.

“Even if our Sun ate the entire inner solar system, it wouldn’t come close to the anomaly we see in this star,” study co-author David Hogg from the Flatiron Institute in New York added.

The research did not begin as a hunt for a planet-eater.

Oh was analysing a catalog of new star data collected by the European Space Agency’s Gaia spacecraft for pairs of stars with similar speeds and trajectories.

Such duos are typically twin stars that formed close together from the same ingredients.

The analysis ultimately led to the identification of Kronos and its lesser known brother Krios.

Their official designations are HD 240430 and HD 240429, and they are both about 350 light years from Earth.

The keys to the discovery were first confirming that the widely separated pair are in fact a binary pair, and secondly observing Kronos’ strikingly unusual chemical abundance pattern, Oh explained in a statement released by the Princeton University.

Other co-moving star pairs have had different chemistries, Oh explained, but none as dramatic as Kronos and Krios.

Most stars that are as metal-rich as Kronos “have all the other elements enhanced at a similar level,” she said, “whereas Kronos has volatile elements suppressed, which makes it really weird in the general context of stellar abundance patterns.”

In other words, Kronos had an unusually high level of rock-forming minerals, including magnesium, aluminium, silicon, iron, chromium and yttrium, without an equally high level of volatile compounds — those that are most often found in gas form, like oxygen, carbon, nitrogen and potassium, the study said. (IANS)