Latest trial of the One Laptop Per Child running in India; Uruguay orders 100,000 machines
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Latest trial of the One Laptop Per Child running in India; Uruguay orders 100,000 machines

Thursday, November 8, 2007

India is the latest of the countries where the One Laptop Per Child (OLPC) experiment has started. Children from the village of Khairat were given the opportunity to learn how to use the XO laptop. During the last year XO was distributed to children from Arahuay in Peru, Ban Samkha in Thailand, Cardal in Uruguay and Galadima in Nigeria. The OLPC team are, in their reports on the startup of the trials, delighted with how the laptop has improved access to information and ability to carry out educational activities. Thailand’s The Nation has praised the project, describing the children as “enthusiastic” and keen to attend school with their laptops.

Recent good news for the project sees Uruguay having ordered 100,000 of the machines which are to be given to children aged six to twelve. Should all go according to plan a further 300,000 machines will be purchased by 2009 to give one to every child in the country. As the first to order, Uruguay chose the OLPC XO laptop over its rival from Intel, the Classmate PC. In parallel with the delivery of the laptops network connectivity will be provided to schools involved in the project.

The remainder of this article is based on Carla G. Munroy’s Khairat Chronicle, which is available from the OLPC Wiki. Additional sources are listed at the end.

Retrieved from “https://en.wikinews.org/w/index.php?title=Latest_trial_of_the_One_Laptop_Per_Child_running_in_India;_Uruguay_orders_100,000_machines&oldid=2526562”

A Rewarding Potty Training Session. Learn How!}

A Rewarding Potty Training Session. Learn How!

by

[youtube]http://www.youtube.com/watch?v=W2hhIWbz0Ns[/youtube]

William Rogers

Parenting Advice For Young And Old Alike!

Parenting can be extremely rewarding if you take the time to master the skills needed to perform the job correctly. This post offers helpful advice on having the most out of the experience of being a mother or father.You don’t always need to spend a lot of money on a nursery equipment. You can purchase high quality baby items at department stores.Babies and young children should not need to drink any kind of soda.Every parent requires an occasional break from taking care of their children.”Touch gently” is a more positive twist on a rule that doesn’t allow striking.By taking out some of their overlooked toys from the bottom of their toy chest, you add artificial novelty and variety to their playtime.Many airports now have these special lines. This allows you to not be rushed or feel that other travelers are getting impatient with your children through the longer lines. Everything is going to have to go through an x-ray machine, and that includes car seats and the kid’s shoes.These kinds of activities help your children to build their social skills and develop friendships, which will help your child all the way through adulthood.Encouraging your child to play team sports will help increase his or her self-esteem.You need to recognize that not every child is sociable. Some kids are quite shy, but that is alright. If your child is more withdrawn than normal, it might be wise to schedule a scheduled appointment with a doctor to be sure that there are no issues that you were unaware of.Children love praise; give it to them when they behave well. If being well-behaved does not get their parents’ attention, they may turn to bad behavior to get it. Parents who neglect to provide their children with positive attention for being good might actually encouraging them to behave poorly.As you have read, a bit knowledge can go quite a distance in turning the issues of parenting into surmountable challenges. Using the knowledge that other, more knowledgeable parents have already gained can help you parent your own child with more success. Try out this advice today!

In parenting your child , you want only systems that work. Carol Cline is the person to speak to when it comes to dealing with toddlers. You can get more of her ideas in her new system Start Potty Training. Visit this site http://spyreviewofpottytrainingboysandgirls.com/

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A Rewarding Potty Training Session. Learn How!}

Syrian citizen journalists risk death, targeted; city of Homs facing starvation
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Syrian citizen journalists risk death, targeted; city of Homs facing starvation

Saturday, February 25, 2012

Syrian forces have been shelling the Baba Amr district of Homs, Syria for almost a month. Civilians and journalists are amongst the dead, and Wikinews spoke to a local citizen journalist, attracting attention both from the world’s media and from the Syrian Armed Forces. According to Wikinews’ source, much of Homs is without water, and a city facing starvation.

Syrian forces began a ground assault on Homs February 4, using troops, and bombarding the city with tanks and artillery. To this day, the bombardment continues. Soldiers frequently clash with anti-government protesters, and ‘freedom fighters’ of the Free Syrian Army in violent, often deadly encounters. In the Baba Amr district of the city, “Omar” [for his safety, we only use his first name, Ed.], a citizen journalist with the Homs Media Center, created an account on the Bambuser website where users can stream live footage from PCs or mobile phones. He then pointed a camera out of his home, overlooking the city, and began broadcasting footage live on the Internet.

The violent, often deadly, events following may have, indirectly, resulted from this action. Journalists discussed in this article put their lives in jeopardy to give the world a record of events; in some cases, dying doing so. But, their deaths may not have been accidental; evidence suggests possible intentional targeting by Syrian government forces.

Omar usually began broadcasting just before sunrise. At 5:18 a.m. (EET) in Homs on February 9, Omar started his live broadcast; the sky still dark, with only a few lights flickering around the area. Sporadic gun and rocket fire between Syrian forces and the Free Syrian Army audible on the live feed. By sunrise, gun battles had ceased, the city silent except for the occasional rooster welcoming the morning sun. As daylight broke tanks inside the city, and artillery on its outskirts, began shelling buildings and other targets. Throughout the morning, rocket fire and tank shelling could be heard getting closer and closer to Omar’s position.

At approximately 07:40 EET, nearly two-and-a-half hours into the broadcast, the camera’s microphone records the audio of the brief, but distinct, ‘whistle’ of a rocket or shell as it sails through the air. It strikes close to the camera’s position, causing it to wobble an shake, nearly tipping over; smoke obscures the camera’s view, debris falling onto it whilst sounds of parts of nearby buildings collapsing are heard.

The camera continues to film, apparently undamaged. Omar’s house isn’t so lucky, suffering a direct hit from a rocket. Out of the camera’s view, people inside the house begin to scream. Less than two minutes later, a second rocket strikes the house just above and behind the camera’s position; again, causing it to shake. The sun casts the rising smoke’s shadow on the house next door as more debris hits the camera. Further screams are heard as rubble collapses around people inside. Those inside, running and shouting, now make up most of the broadcast audio; some begin to pray, whilst others bring round a car to carry out the injured or dead. Moments later another rocket is fired, residents screaming warnings to each other of another possible incoming strike. An explosion is heard, and smoke can be seen rising, center-right of the camera shot, from the rocket striking nearby.

A few minutes later, two men are seen coming out onto their balcony and looking in the direction of the house that was just hit. They talk, looking and pointing in the direction of Omar’s house, with the sound of gunfire in the area. At 07:50, they go back inside and out of sight.

Three minutes later a rocket is fired, striking that house, exactly where the two men were standing. It is unknown if they were killed or injured in the attack, but according to Omar the attacks around his home left five dead, three women and two men; Omar himself survives unscathed.

Despite the deaths in the February 9 attack, Omar kept his camera rolling whenever awake; but, that was about to change.

February 15 was a relatively quiet morning but, as sunrise gave way to the daylight, rockets began hitting targets in the city for the eleventh consecutive day. Shortly before 08:00 EET, a small plume of black smoke appears, left side of the live broadcast, an oil pipeline having sustained its first direct hit. Moments later, a second strike on the pipeline is in-shot, also to the left of the camera’s view. The acrid smoke from this strike quickly begins to grow.

Shortly after the second hit on the pipeline Omar enters the room, moving the camera to show both strikes. Twin plumes of thick black smoke are now visible rising in the distance. Omar states the oil pipeline sustained damage from an attack by Syrian military aircraft. From a United States Department of State satellite photo taken after the bombing, the pipeline is seen near a densely populated area of the city, with farmland lying to the west. The smoke from the pipeline fire blankets nearly all of the populated area, to the east, in range of the photo.

After repositioning the camera, Omar decided to leave his house to undertake some field work; a fortuitous move as Omar stated on his Twitter stream, “after we left the house” a rocket made a direct hit on it, leaving a hole in one of the sides. There were no injuries in the attack, the building being unoccupied at the time.

With sunset closing in and the pipeline still ablaze, Omar turned off his camera, not just for the night — indefinitely. Omar now believes he is in too much danger to broadcast further, tweeting: “[I] really am confused […] am worried to turn the live camera on. It’s become very dangerous.” Omar has since left his home.

Crucial as some of the live footage may be at getting pictures of bloodshed inside Syria out; for now, much of the output which ended up hosted on Bambuser has dried up. On February 17, the Syrian government blocked access to the website and its mobile phone application. Despite government action, some isolated examples of live footage continue making their way out of Syria, mainly from mobile phones.

Bambuser speculate that Syrian authorities’ move to block access may be a result of Omar’s live footage showing the oil pipeline fire on Feburary 15. That footage was rebroadcast on several major news networks, including CNN, BBC News, Al Jazeera and Sky News.

“We believe this footage was the trigger for the Syrian government to block access to bambuser.com and disable the possibility to broadcast live video with mobile phones on Syrian 3G,” said a Bambuser statement on their website. Bambuser has been blocked previously in other countries. Access to the site was blocked by Egypt in January 2011, during their revolution. Bahrain blocked the site six months ago, and it remains blocked to this day.

Bambuser’s statement continues: “Not only have we helped them get their message out, but they also say it means much in terms of morale for everyone in this situation. They [The Syrian people] know the world is watching, sharing and it gives them hope. No matter where in the world there is unrest, we at Bambuser always do our best to support and help observers”.

Omar is not alone in being at-risk; on February 18 a funeral for three men, shot and killed by Syrian forces during an anti-government protest the prior day, was being held in the central Mezzeh district of Damascus.

Over fifteen thousand people, including women and children, filled the streets paying their respects. After a prayer, during which mourners remained completely silent, the procession turned into a mass-protest. With mourners-turned-protesters marching down the streets, the sky over Damascus darkened and snow began falling. With the change of weather appearing to embolden the protesters, their chants grew louder.

Shortly thereafter, Syrian forces surrounded the front of the march, and opening fire with live rounds and tear gas. Panicked people quickly scattered, turning the once-peaceful march into a stampede. At least one was shot and killed. Dozens of others sustained injuries. This was the first time Syrian forces opened fire on protesters in central Mezzeh.Those people are just a small fraction of those who have been killed or injured since the uprisings began. It is estimated that from five thousand to upwards of seven thousand people have been killed since January of last year. As a result, on February 20, the International Committee of the Red Cross (ICRC) announced it was attempting to negotiate a cease fire by all parties “to facilitate swift Syrian Arab Red Crescent and ICRC access to the people in need.”

The ICRC wants troops to halt their attacks in cities that have seen the most fighting in order to deliver care packages. Bijan Farnoudi, a spokesman for the Red Cross, said discussions include “several possibilities” in which the packages can be delivered. Though the organization has been delivering food and supplies to as many cities and citizens as possible, heavy fighting in areas such as the Baba Amr district of Homs has made it increasingly difficult for aid to be delivered. Even while the Red Cross worked to negotiate a cease fire, reports out of Homs on February 20 said Syrian forces were amassing troops and tanks outside the city in preparation for an all-out ground invasion. According to Omar, the shellings continued, but on February 24, the Red Cross announced it was allowed to begin evacuating injured women and children from the city.

On February 21, a member of the Homs Media Center was killed by a rocket as Syrian forces continued their bombardment of the city for an eighteenth straight day. Rami al-Sayed was reported to have been severely injured by a rocket while attempting to evacuate individuals to a makeshift hospital, during what activists call the worst day of bombardment since Syrian forces began their attack on the city on February 4. According to Bambuser, he and three others were inside a car when it was hit by a mortar, immediately killing the others. Sayed bled to death at the hospital.

Sayed was a videographer “crucial in getting the truth out through his videos posted on the Internet. We will really miss him, especially the medical team who relied on him to document all the civilian injuries and deaths on video,” said Omar in an interview with CNN. Sayed also was one of the men affiliated with the account ‘syriapioneer’ on Bambuser. Like Omar, he would broadcast live footage of the events on the ground in Homs. Bambuser published the last known message sent out to friends and family: “Babaamr is facing a genocide right now. I will never forgive you for your silence. You all have just give us your words but we need actions. However our hearts will always be with those who risk their life for our freedom. … In a few hours there will be NO place called BabaAmr and I expect this will be my last message and no one will forgive you who talked but didn’t act.” Sayed, 26, had a daughter of 18 months. In December, a citizen-journalist cousin of Sayed’s, Basil al-Sayed, was also killed. In a statement to Wikinews Omar described Sayed as “my best friend” and they both have worked as citizen journalists for about “10 months”, around the beginning of the uprisings.

The killings didn’t end there. Another two journalists were killed February 22, whilst at the Homs Media Center. Marie Colvin, a Sunday Times journalist, and award winning French photographer Rémi Ochlik, were killed when rockets hit the center. At least two others were injured in the attack, French journalist Edith Bouvier and British photographer Paul Conroy.

The Syrian government denies involvement, saying their deaths were “absolutely not” caused “by Syrian armies.” The following day Bouvier made a video plea to Syrian forces that she be allowed to leave Homs to seek medical attention. Conroy stated, despite leg wounds, he was “OK.”

Omar was in a Skype conversation with a friend at the media center when the attack took place. He recorded the call’s audio using a web camera and posted the video on YouTube; sounds of explosions and possible gunfire can be heard throughout. Reports strongly suggest the media center attack was deliberate; radio communications between Syrian government forces indicate orders to attack the building — whilst making it appear individuals died caught in a gun battle with terrorists.

HAVE YOUR SAY
What are your thoughts on the situation in Syria?Is the report from the Arab League credible in light of our video footage?How do you believe the international community should respond?
Add or view comments

It is because of situations such as that on February 16, the United Nations General Assembly (UN GA) voted, “[…] overwhelmingly to call on both the government and allied forces and armed groups to stop all violence or reprisals immediately.” The UN GA press release expressed grave concern at the Syria’s deteriorating situation and, “[…] condemned a raft of violations carried out by the authorities, such as the use of force against civilians, the killing and persecution of protesters and journalists, and sexual violence and ill-treatment, including against children.”

Calling on Syria to abide obligations under international law, the UN GA “[…] demanded that the Government, in line with the 2 November 2011 Action Plan of the League of Arab States, and its decisions of 22 January and 12 February 2012, without delay, stop all violence and protect its people, release all those detained during the unrest, withdraw all armed forces from cities and towns, guarantee peaceful demonstrations and allow unhindered access for Arab League monitors and international media.”

137 nations voted for the General Assembly’s resolution, twelve opposed and 17 abstained. As with many UN GA resolutions, the findings and conclusions are non-binding.

Earlier, on February 4, the United Nations Security Council failed to pass resolution S/2012/77, supporting Arab League actions pursuing peace in Syria. This resolution was vetoed by Security Council members China and Russia.

The Arab League’s goal, according to their report on Syria, “is to protect Syrian citizens through the commitment of the Syrian government to stop acts of violence, release detainees and withdraw all military presence from cities like Homs, and an end to violence in Syria.” The League noted Homs, Dera‘a, Idlib, and Hama as the cities primarily affected by such incidents. The report claims all such incidents were caused by “armed groups” or “entities not mentioned in the protocol [report].”

Despite the League’s claim, live footage broadcast more than a month after the report was filed suggests the opposite as tanks continued to bombard cities like Homs. The League, in their report, go on to say Syrians “believe the crisis should be resolved peacefully through Arab mediation alone, without international intervention. Doing so would allow them to live in peace and complete the reform process and bring about the change they desire.”

Omar disagrees with the League’s conclusion that Syrians do not want international intervention. He believes if “the world” doesn’t act soon, many more will die from starvation. Medical supplies have not been making their way to makeshift hospitals and food is scarce. Much of the city is without water and Syrian forces continue their assault on the city. In a statement to Wikinews on Wednesday, Omar said “if they stay like this [the world] just watching us, people will die not because of the shelling, they will die because of starvation. We are surrounded. There is no food, no water and no medical supplies. If the world doesn’t do anything we will die from starvation. In the coming days I can see a massacre from starving.”

Retrieved from “https://en.wikinews.org/w/index.php?title=Syrian_citizen_journalists_risk_death,_targeted;_city_of_Homs_facing_starvation&oldid=3863610”

Disney to shut down Blue Sky Studios, animation studio behind ‘Ice Age’
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Disney to shut down Blue Sky Studios, animation studio behind ‘Ice Age’

Wednesday, February 10, 2021

Yesterday, US-based entertainment company Disney announced its plans to shut down Blue Sky Studios, the animation studio behind the Ice Age movie franchise.

“Given the current economic realities, after much consideration and evaluation, we have made the difficult decision to close filmmaking operations at Blue Sky Studios”, Walt Disney Studios said in the statement. According to The Hollywood Reporter, the studio will cease producing a movie-adaptation of Nimona, which was scheduled to be released next year.

Based in Greenwich, Connecticut, Blue Sky Studios was founded in 1987, and was later acquired by 20th Century FOX in 1999. Blue Sky’s control went to Disney in 2019 when Disney bought assets of FOX Studios for around US$71 billion. Blue Sky had worked on Joe’s Apartment, A Simple Wish, Alien Resurrection, and Fight Club. The studio went on to produce five Ice Age films, two Rio movies, The Peanuts Movie as well as Ferdinand, which received an Academy Award nomination for best animated feature film.

Disney also owns two other significant animation studios, Pixar and Walt Disney Animation Studios. During the COVID-19 pandemic, Disney has closed Radio Disney and Radio Disney Country. Disney planned last year to lay off about 32 thousand employees, many from Disney’s theme parks. Disney also sold mobile video game unit FoxNext Games Los Angeles. Disney reported a US$2.8 billion net loss in the 2020 fiscal year.

Retrieved from “https://en.wikinews.org/w/index.php?title=Disney_to_shut_down_Blue_Sky_Studios,_animation_studio_behind_%27Ice_Age%27&oldid=4608264”

2008 TaiSPO: Interview with Ideal Bike Corporation and Gary Silva
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2008 TaiSPO: Interview with Ideal Bike Corporation and Gary Silva

Friday, March 28, 2008

2008 Taipei International Cycle Show (Taipei Cycle) & Taipei International Sporting Goods Show (TaiSPO) not only did a best reunion with conjunctions of the launch of Taipei World Trade Center Nangang Exhibition and the concurrent cycling race of 2008 Tour de Taiwan but also provide opportunities and benefits for sporting goods, bicycle, and athlete sports industries to establish the basis of the sourcing center in Asia and notabilities on the international cycling race.

Although the Taipei cycle was split from the TaiSPO since 1988, but the trends of sporting good industry in Taiwan changed rapidly and multiply because of modern people’s lifestyles and habits. After the “TaiSPO Innovation Award” was established since 2005, the fitness and leisure industries became popular stars as several international buyers respected on lifestyle and health.

For example, some participants participated Taipei Cycle and TaiSPO with different product lines to do several marketing on bicycle and fitness equipments, this also echoed the “Three New Movements” proposed by Giant Co., Ltd. to make a simple bicycle with multiple applications and functions. As of those facts above, Wikinews Journalist Rico Shen interviewed Ideal Bike Corporation and Gary Silva, designer of “3G Steeper” to find out the possibilities on the optimizations between two elements, fitness and bicycle.

Retrieved from “https://en.wikinews.org/w/index.php?title=2008_TaiSPO:_Interview_with_Ideal_Bike_Corporation_and_Gary_Silva&oldid=4608359”

Cook Top Quality Benihana Style Fried Rice

Cook Top Quality Benihana Style Fried Rice

by

Ben Christie

If you have ever been to a Teppenyaki restaurant, you will have experienced excellent quality food alongside some top quality entertainment. Teppenyaki is the ultimate dining experience as it is not only a sit-down meal, but you get to watch the expert chefs cook it before your very eyes. The restaurant chain Benihana made the Teppenyaki style cooking famous in America and are well renowned for their food. Want to learn how to cook Benihana fried rice? Read on…

Benihana s first restaurant was opened in New York in 1964 by Rocky Aoki and has developed into an extremely popular family restaurant chain ever since. Their food is famous and here we can teach you their secret recipe to getting the perfect Benihana fried rice. You will need:

4 cups cooked converted or parboiled rice (1 cup uncooked)

1 cup frozen peas, thawed

2 tablespoons finely grated carrot

[youtube]http://www.youtube.com/watch?v=PeUHy0A1GF0[/youtube]

2 eggs, beaten

1/2 cup diced onion (1/2 small onion)

1 1/2 tablespoons butter

2 tablespoons soy sauce

Salt

Pepper

Cook the rice by bringing 2 cups water to the boil adding the rice and pinch of salt. Reduce the heat, cover the saucepan and simmer for 20 minutes. Pour rice into a large bowl to let it cool in the refrigerator.

Scramble the eggs in a small pan over a medium heat. While cooking, separate the egg pieces into smaller chunks (about the size of a pea).

When the rice has cooled to room temperature, add diced onion, peas, grated carrot and the scrambled egg to the bowl. Toss all the ingredients together.

Melt 1 tablespoons butter in a large frying pan or wok over a medium/high heat. Once the butter has melted, tip in the contents of the bowl of rice. Then, add the soy sauce and season with salt and pepper. Cook the rice for 6-8 minutes, stirring regularly.

So, that is it, delicious rice without too much fuss! If you are cooking the rice ahead of time, this Benihana fried rice recipe is still suitable for you. Perhaps you are having a lot of people round for some food and want to do as much preparation the day before as you possibly can so that you re not panicking on the day. No problem.

Just cook the rice then add the peas, carrots and egg plus half the soy sauce. Keep this refrigerated, then when you are ready for it, fry it in the butter then add the salt, pepper and the rest of the soy sauce. It s like having Teppenyaki style food made in your own kitchen.

If you re a fan of Japanese cuisine or just eager to explore the techniques used at Benihana, this Benihana Fried Rice recipe is the best way to cook rice if you re bored of having plain boiled rice and want some alternative flavours.Be sure to check out Recipe Bridge for other types of Benihana Recipes.

Learn more from Benjamin Christie about

Benihana Recipes

on this website URL: http://www.recipebridge.com/r/benihanas-fried-rice-recipes

Article Source:

ArticleRich.com

Creator of website satirizing Glenn Beck on winning domain name case
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Creator of website satirizing Glenn Beck on winning domain name case

Tuesday, November 10, 2009

Wikinews interviewed the creator of a parody website satirizing American political commentator Glenn Beck, about his thoughts after prevailing in a domain name dispute brought by Beck before the World Intellectual Property Organization (WIPO) in Geneva, Switzerland. Florida resident Isaac Eiland-Hall created the website in September, and it asserts Beck uses questionable tactics “to spread lies and misinformation”. Eiland-Hall was represented in the case by free speech lawyer Marc Randazza.

Wikinews interviewed Randazza for the article “US free speech lawyer Marc Randazza discusses Glenn Beck parody”, and previously reported on the Beck v. Eiland-Hall case in articles, “US free speech lawyer defends satire of Glenn Beck”, “Satirical website criticizes Glenn Beck for ‘hypocritical’ attempts to silence free speech”, and “Glenn Beck loses domain name case over parody website”.

Retrieved from “https://en.wikinews.org/w/index.php?title=Creator_of_website_satirizing_Glenn_Beck_on_winning_domain_name_case&oldid=4466832”

News briefs:June 4, 2010
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News briefs:June 4, 2010

Wikinews Audio Briefs Credits
Produced By
Turtlestack
Recorded By
Turtlestack
Written By
Turtlestack
Listen To This Brief

Problems? See our media guide.

[edit]

Retrieved from “https://en.wikinews.org/w/index.php?title=News_briefs:June_4,_2010&oldid=1042714”

How Model Airplanes Fly

After the successful flight of the man-carrying vehicle made by the Wright brothers, interest in aviation spread rapidly and many models were made. Model airplane enthusiasts are already existing in the early 1900s’. Most of the models are rubber powered, twining type with double stick fuselages that are common in Europe. But even in the early days of model flying, small petrol and compressed air engines are already being used. The materials used in model constructions are birch strips, veneer, spruce, piano wire or bamboo and oiled silk covering. Then balsa structure and tissue covering appeared in the United States in the late 1920s’. So much for the history of model aircraft. So you see, even today, the airplane structure and how it fly is no different from the one we are flying today. The wings, fuselage, vertical and horizontal stabilizers, propellers, engines, landing gears are the same. The airplane, to fly and have control during flight uses them. The wings are obviously responsible why the airplane can stay in the air for a long time. With proper design of the airplane, dimensions, weight considerations and aerodynamic design characteristics it will fly successfully. The aerodynamic principles behind it is what really makes it fly. But even though it has a good design, weight and balance plays a major role. There was a saying that a feather flies better than a brick which is true because a very heavy airplane wont fly if it cannot be sustained by its power plant (engine, propeller, and fuel tank). And with regards to balancing, a well-balanced airplane is controllable during flight. Usually the fulcrum or center of gravity is located of the wing chord. Balancing it is by placing your fingers on both sides of the wing, then relocating the receiver, batteries and servos until the airplane is balanced. You may ask why the center of gravity is located of the wing chord? It has something to do with aerodynamic center, neutral point that can be explained in detail with some illustrations by following the link on the bottom. When you look at the cross section of the wing, the shape is called an airfoil. Basically the airfoil consist of upper and lower camber, leading and trailing edge. When the airplane is flying, there are aerodynamic forces that interact with the wings, vertical and horizontal stabilizers because the airplane is going against the air or commonly called relative wind. Then it creates a variance of pressure on the upper versus the lower camber of the airfoil (or the wing itself) which generates lift. The air that passed the lower camber should have a higher pressure against the upper camber to sustain flight. This has something to do with law of continuity. The air molecules that separates from the leading edge, going to the upper and lower camber, should meet at the trailing edge at the same time. Since the upper camber has a greater curve than the lower camber, the distance on the upper camber is longer and therefore requires more velocity to meet the air on the lower camber. This creates a lower pressure on the upper camber based on the Bernoulli’s theorem, “as the velocity of air increases, pressure decreases”Hope my brief explanation is understandable. If you want to know the details with visual aids about the model airplane theory of flight, I suggest going to my site: Model Aeronautics for Dodos to know more about rc model airplanes

Neuroscientists tell Wikinews about empathy and harm aversion observed in lab rats
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Neuroscientists tell Wikinews about empathy and harm aversion observed in lab rats

Thursday, April 30, 2020

In findings published last month in the journal Current Biology, neuroscientists from the Netherlands Institute for Neuroscience examined harm aversion in laboratory rats for conspecifics — rats not wanting to hurt other members of the same species — and reported which region of the brain was crucial for it. Wikinews caught up with Dr Christian Keysers and Dr Valeria Gazzola, two of the authors who contributed to the paper.

For the experiment, the rats were put in a container with two levers. The rats were trained to develop a preference for one of the two levers: each delivering one pellet of sucrose. One of the two levers was harder to press.

After developing a preference, the preferred lever was wired to deliver a shock to another rat in a neighbouring compartment, while delivering a single pellet of sucrose. The study showed the actor rat, which pressed the lever tend to switch the lever to avoid shocking the other rat. The rat receiving the shock was called a victim rat.

Aversion of harm to fellow rats was reported to be equal in both male and female rats. If the actor rats were previously exposed to the shocks, their degree of harm aversion for others was heightened, the study revealed.

The investigation reported the rats avoided pressing the preferred lever to shock another rat, even if that lever delivered two sucrose pellets and the no-harm lever delivered only one. However, this was not the case when the rats were given three pellets by the shock lever. Most of the actor rats did not switch when they received three pellets pressing the lever, which also delivered an electric shock. Dr Gazzola called it a “tipping point” and said it was a “cost-benefit” function.

The study also revealed the importance of the anterior cingulate cortex (ACC) region of the rat’s brain for harm aversion. The scientists tested harm aversion for conspecifics in the rodents after deactivating the ACC using muscimol. Muscimol was injected in the rats belonging to the test group, while saline water was injected to rats in the control group. The observations showed without the active ACC due to muscimol, the active rats in the test group were no longer averse to harming the victim rats, but degree of harm aversion did not drop in the control group rats.

Retrieved from “https://en.wikinews.org/w/index.php?title=Neuroscientists_tell_Wikinews_about_empathy_and_harm_aversion_observed_in_lab_rats&oldid=4574481”

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