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martedì 11 marzo 2014

Public Opposition Affects Tidal Power Projects

Public Opposition Affects Tidal Power Projects





via Environmental Management & Energy News:


sustainability result prioritization power methods guest column gas energy earth social entrepeneurship More and more companies are realizing that the prioritization of safe, reliable energy methods is the best way to reduce greenhouse gas emissions. By using the Earth’s natural, predictable energy from tidal power, we can generate reliable electricity while conserving other resources. However, some environmental groups oppose new tidal projects due to fear that the […]


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giovedì 28 novembre 2013

Figure eights and peanut shells: How stars move at the center of the galaxy

Figure eights and peanut shells: How stars move at the center of the galaxy



The November Blues November brings out the best in many people. The spirit…On MyBiologica.comHealth is the level of functional or metabolic efficiency of a living being. In humans, it is the general condition of a person’s mind and body, usually meaning to be free from illness, injury or pain.Alternative medicine is any of a wide range of health care practices, products and therapies, using methods of medical diagnosis and treatments which, at least up to the end of the twentieth century, were typically not included in the degree courses of established medical schools teaching medicine. Examples include homeopathy, Ayurveda, chiropractic and acupuncture.On MyBiologica.com all you are looking for about alternative medicine and health.Coming soon section with best cheapset health insurance offers …



via My Biologica:



Figure eights and peanut shells: How stars move at the center of the galaxy



Two months ago astronomers created a new 3-D map of stars at the center of our Galaxy (the Milky Way), showing more clearly than ever the bulge at its core. Previous explanations suggested that the stars that form the bulge are in banana-like orbits, but a new article suggests that the stars probably move in peanut-shell or figure of eight-shaped orbits instead.



via ScienceDaily: Top Science News:


Nov. 27, 2013 — Two months ago astronomers created a new 3D map of stars at the centre of our Galaxy (the Milky Way), showing more clearly than ever the bulge at its core. Previous explanations suggested that the stars that form the bulge are in banana-like orbits, but a paper published this week in Monthly Notices of the Royal Astronomical Society suggests that the stars probably move in peanut-shell or figure of eight-shaped orbits instead.The difference is important; astronomers develop theories of star motions to not only understand how the stars in our galaxy are moving today but also how our galaxy formed and evolves. The Milky Way is shaped like a spiral, with a region of stars at the centre known as the “bar,” because of its shape. In the middle of this region, there is a “bulge” that expands out vertically.In the new work Alice Quillen, professor of astronomy at the University of Rochester, and her collaborators created a mathematical model of what might be happening at the centre of the Milky Way. Unlike the Solar System where most of the gravitational pull comes from the Sun and is simple to model, it is much harder to describe the gravitational field near the centre of the Galaxy, where millions of stars, vast clouds of dust, and even dark matter swirl about. In this case, Quillen and her colleagues considered the forces acting on the stars in or near the bulge.As the stars go round in their orbits, they also move above or below the plane of the bar. When stars cross the plane they get a little push, like a child on a swing. At the resonance point, which is a point a certain distance from the centre of the bar, the timing of the pushes on the stars is such that this effect is strong enough to make the stars at this point move up higher above the plane. (It is like when a child on the swing has been pushed a little every time and eventually is swinging higher.) These stars are pushed out from the edge of the bulge.The resonance at this point means that stars undergo two vertical oscillations for every orbital period. …


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Figure eights and peanut shells: How stars move at the center of the galaxy


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martedì 5 novembre 2013

An Experience at the Store with My Three Year Old Son

An Experience at the Store with My Three Year Old Son



A few days ago, I found myself at a store with my three year old son. I had to stop in and pick up a few items because we had some extended family members visiting us.So, the two of us strolled through the store. He’s decided that he’s too big to ride in the shopping cart, so we have a simple rule that he has to either hold my hand or hold onto the cart while we’re in the store.Almost immediately, he asked to visit the toy section. I told him that if he was good, we could visit the toy section for five minutes on our way out of the store. That seemed to please him, so I found the items on my shopping …



via The Simple Dollar:



A few days ago, I found myself at a store with my three year old son. I had to stop in and pick up a few items because we had some extended family members visiting us.


So, the two of us strolled through the store. He’s decided that he’s too big to ride in the shopping cart, so we have a simple rule that he has to either hold my hand or hold onto the cart while we’re in the store.


Almost immediately, he asked to visit the toy section. I told him that if he was good, we could visit the toy section for five minutes on our way out of the store. That seemed to please him, so I found the items on my shopping list and put them in the cart while he behaved himself.


Because he did so well, we went to the toy section. I told him on the way there that we were only staying for five minutes and that we weren’t buying any toys today.


I bet you can guess what happened.


Very quickly, he found the single toy he wants most in the world – a Transformers Rescue Bot (which is a simple transforming robot toy that three year olds can easily manipulate). He spent the whole five minutes sitting there studying this toy and trying to play with it through the packaging.


When I told him it was time to go and that he had to put the toy back on the shelf, he went into meltdown mode. He pulled the “going limp” trick. He cried and shouted.


I promptly picked him up, put him in the cart, and left the store as quickly as possible.


There are a few things worth noting here.


First, there was no way on Earth I was giving in to his request for a toy. It simply was not going to happen. I made it clear to him that there would be no toys bought on that day and I stuck to my word.


Second, once he became upset and refused to leave, my goal was to exit the environment with him with as little fuss as possible. Again, there’s no negotiation here. He was allotted some time to look at toys and that time ended, so we leave.


What I’ve found is this: if you stick to the enforcement of these kinds of rules when they’re young and easy to carry, they abide by them much easier when they’re older. I sometimes had meltdowns like this with my other children when they were younger, and I responded by picking them up and removing them from the situation. I cannot recall the last time either one of my older children had such a meltdown.


In the end, though, this type of situation is all about learning impulse control, something that can be a struggle all throughout our lives.


One of my key roles as a parent is to give my children the cognitive and emotional tools they’ll need to be successful adults.


Throughout their lives, my children are going to find themselves in situations where they’re going to desire some material object. They’re going to want it so badly. They’re going to want to buy it now.


If they give into that impulse repeatedly, they begin to set up a pattern where they do not have to wait for material gratification. They view “having it now” as normal, and when it becomes possible for them to spend their own money (or their own credit) in such a way, they’ll continue that “have it now” mindset and spend with reckless abandon.


I did it myself, as have countless other adults out there who dug themselves a healthy debt hole.


Children are going to want things. The job we have as parents is to teach them to control those desires in an effective way that won’t lead them to financial ruin down the road.


The post An Experience at the Store with My Three Year Old Son appeared first on The Simple Dollar.




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