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Energy Drinks Linked to Heart Problems - Nature World News

Energy Drinks Linked to Heart Problems - Nature World News | 9 Science | Scoop.it
Nature World News
Energy Drinks Linked to Heart Problems
Nature World News
Energy drinks - with high sugar and caffeine content - can lead to heart problems, a new study states. Several researches have linked ...
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New Zealand's Biggest Solar Panel Installation - Yealands Family Wines

Yealands Family Wines http://yealands.co.nz Aaron Black, Winery Engineer, discusses New Zealand's largest solar panel installation at Yealands Estate Seaview...
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Insulation Basics: Heat, R-Value and the Building Envelope

Insulation Basics: Heat, R-Value and the Building Envelope | 9 Science | Scoop.it
Learn how heat moves through a home and the materials that can stop it, to make sure your insulation is as effective as you think (Make sure you’re up on #insulation basics from @houzz, it could save you a lot of money!
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Solar-panel skin could make Dutch homes energy neutral | GizMag.com

Solar-panel skin could make Dutch homes energy neutral | GizMag.com | 9 Science | Scoop.it

Around 60 percent of the homes in the Netherlands are row house terraces, with around a quarter of those built in the post-war period. While these constructions characterize much of the Dutch urban landscape, they weren't exactly built with energy efficiency as their first priority. A team of Delft University students has developed a concept for a solar-powered skin designed to optimize energy usage, while also preserving this classic Dutch architecture.

 

The skin covers the exterior of the existing house from font to back, one side fitted with glass and photovoltaic panels to harvest the energy from the sun, while the other contains added insulation to trap the heat indoors. According to team, this concept demonstrates how 1.4 million similarly built Dutch homes could become entirely energy neutral.

 

Critical to the skin's effectiveness is its adaptability. During winter, the skin encloses the house entirely to contain heat, then in the autumn and spring it opens partially to provide ventilation. In the hotter months of the year, it is opened up completely to maximize airflow using what is known as the "stack effect." This refers to a difference in density between the indoor and outdoor air which in turn creates a buoyancy force, driving natural ventilation through the building.

 

Click headline to read more and view pix gallery--

 


Via Chuck Sherwood, Senior Associate, TeleDimensions, Inc
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Tea Bag Rocket

In this video I show you a fairly well known stunt involving a tea bag, commonly known as the 'Tea Bag Rocket'. Try this at home.
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How to make a hot air balloon | Do Try This At Home | At-Bristol Science Centre

How big is a hot air balloon? What's it made from? Join Ross of the Live Science Team as he shows you how to make a small hot air balloon at home & discovers...
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Radiation, Conduction, Convection Song

Here is a song I created for my 6th grade science students. I hope you enjoy When the days are cold This is what we're told The transfer of heat From hot to ...
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Bouncy kangaroo robot is unstoppable | SmartPlanet.com

Bouncy kangaroo robot is unstoppable | SmartPlanet.com | 9 Science | Scoop.it

Here’s the happiest robot I’ve seen this year! And it’s super efficient, using energy from one hop to power the next.

 

Festo’s BionicKangaroo recovers the energy when jumping, stores it, and then uses it for the next jump. Elastic springs in each leg stores energy on landing -- just like the tendon in a real kangaroo’s leg -- converting the kinetic (motion) energy of the jump into potential energy. Real kangaroos depend on that ability to store and reuse energy from each landing to hop long distances in the wild -- they’re the only large animals we know of that uses hopping as their primary means of locomotion.

 

Every year, the Germany-based company comes up with new robots as part of its Bionic Learning Network. The company actually spent two years analyzing kangaroos to recreate its movements. They're not aiming to build a kangaroo robot army; rather, they’re interested in exploring ways of recovering energy in industrial automation, IEEE Spectrum reports, and new ways of combining electronics with pneumatics (technology that’s powered by air or gas under pressure). Some more details about the BionicKangaroo:

 

Click headline to read more and watch video clip--

 


Via Chuck Sherwood, Senior Associate, TeleDimensions, Inc
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Jack 4 years old singing The NEW Periodic Table Song

Jack is 4 years old and learned the whole Periodic Table Song by himself. His favourite element is number 116 - Livermorium. Here are the lyrics: There's Hyd...
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Asapscience Periodic Table Song 10 hours

Song: (New) Periodic Table Song Artist: Asapscience I thought that this needed a little loving loop. Hopefully by the end you will know the elements of the p...
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Water Cycle Yr 9 Science. by Julian Adamson

Water Cycle Yr 9 Science. by Julian  Adamson | 9 Science | Scoop.it
TOUCH this image to discover its story. Image tagging powered by ThingLink
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How to use Windows Live Movie Maker

My Tutorial on how to use Windows Live Movie Maker Channels http://youtube.com/domingo0022iway http://youtube.com/d22responses http://www.youtube.com/domingo...

Via Sheila Opsal
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Scanning Your Dinner to Determine Its Calories | MIT Technology Review

Scanning Your Dinner to Determine Its Calories | MIT Technology Review | 9 Science | Scoop.it
Low-energy microwaves can tell you the caloric content of food, providing a more accurate estimate of what is on your plate.

Via AAM Associates
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Eating to Boost Energy from the Academy of Nutrition and Dietetics

Eating to Boost Energy from the Academy of Nutrition and Dietetics | 9 Science | Scoop.it
Let' s face it, we are are busy, overweight, stressed, out of shape and have poor eating habits — all contributing to low energy levels. One way to fix our energy deficit is how we eat. The right combinations of food can give you a much needed boost.
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Residential Solar Power Solutions in New Zealand

Solar Power for homes, businesses and farms in New Zealand. Right House customers talk about the fantastic results they are seeing and how easy the process w...
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Insulating Your House | CMHC

Insulating Your House | CMHC | 9 Science | Scoop.it
Reduce your energy consumption and save money by choosing an effective insulation system.  Learn more about insulation materials and their installation. (Renovating for energy savings?
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Advanced Energy Technology of the Week: Efficient Building Insulation - Energy Collective

Advanced Energy Technology of the Week: Efficient Building Insulation - Energy Collective | 9 Science | Scoop.it
Advanced Energy Technology of the Week: Efficient Building Insulation
Energy Collective
One key building material that greatly impacts the efficiency of a building is insulation. Up to 45% of a building's heat can be lost through the roof.
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Fashion meets renewable energy – clothes that charge your smartphone

Fashion meets renewable energy – clothes that charge your smartphone | 9 Science | Scoop.it
From fibres that convert sunlight into electrical energy, to uploading your kinetic energy to a green energy bank, the worlds of fashion and technology are merging (The future has arrived!
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What is kinetic energy? Can it be harnessed to power our stuff ...

What is kinetic energy? Can it be harnessed to power our stuff ... | 9 Science | Scoop.it
There's motion everywhere in our world. What if we could harness energy that would otherwise be wasted to power our gadgets and generate clean electricity? Is it too good to be true?
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Is it possible? Atoms at a temperature below absolute zero

Is it possible? Atoms at a temperature below absolute zero | 9 Science | Scoop.it
On the absolute temperature scale, which is used by physicists and is also called the Kelvin scale, it is not possible to go below zero – at least not in the sense of getting colder than zero kelvin.

 

According to the physical meaning of temperature, the temperature of a gas is determined by the chaotic movement of its particles – the colder the gas, the slower the particles. At zero kelvin (minus 273 degrees Celsius) the particles stop moving and all disorder disappears. Thus, nothing can be colder than absolute zero on the Kelvin scale. Physicists have now created an atomic gas in the laboratory that nonetheless has negative Kelvin values. These negative absolute temperatures have several apparently absurd consequences: although the atoms in the gas attract each other and give rise to a negative pressure, the gas does not collapse – a behavior that is also postulated for dark energy in cosmology.


The meaning of a negative absolute temperature can best be illustrated with rolling spheres in a hilly landscape, where the valleys stand for a low potential energy and the hills for a high one. The faster the spheres move, the higher their kinetic energy as well: if one starts at positive temperatures and increases the total energy of the spheres by heating them up, the spheres will increasingly spread into regions of high energy. If it were possible to heat the spheres to infinite temperature, there would be an equal probability of finding them at any point in the landscape, irrespective of the potential energy. If one could now add even more energy and thereby heat the spheres even further, they would preferably gather at high-energy states and would be even hotter than at infinite temperature. The Boltzmann distribution would be inverted, and the temperature therefore negative. At first sight it may sound strange that a negative absolute temperature is hotter than a positive one. This is simply a consequence of the historic definition of absolute temperature, however; if it were defined differently, this apparent contradiction would not exist.

 

This inversion of the population of energy states is not possible in water or any other natural system as the system would need to absorb an infinite amount of energy – an impossible feat! However, if the particles possess an upper limit for their energy, such as the top of the hill in the potential energy landscape, the situation will be completely different. The researchers in Immanuel Bloch’s and Ulrich Schneider’s research group have now realised such a system of an atomic gas with an upper energy limit in their laboratory, following theoretical proposals by Allard Mosk and Achim Rosch.

 

In their experiment, the scientists first cool around a hundred thousand atoms in a vacuum chamber to a positive temperature of a few billionths of a Kelvin and capture them in optical traps made of laser beams. The surrounding ultrahigh vacuum guarantees that the atoms are perfectly thermally insulated from the environment. The laser beams create a so-called optical lattice, in which the atoms are arranged regularly at lattice sites. In this lattice, the atoms can still move from site to site via the tunnel effect, yet their kinetic energy has an upper limit and therefore possesses the required upper energy limit. Temperature, however, relates not only to kinetic energy, but to the total energy of the particles, which in this case includes interaction and potential energy. The system of the Munich and Garching researchers also sets a limit to both of these. The physicists then take the atoms to this upper boundary of the total energy – thus realising a negative temperature, at minus a few billionths of a kelvin.


Via Dr. Stefan Gruenwald
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Atomic Structure meets the Periodic Table

See our other videos at http://www.atomickids.org. Electrons are wrapped around the nucleus in shells. It is no coincidence that the first shell can accommod...
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How to Edit with Windows Movie Maker

Watch this tutorial on how to create stunning videos using Video Blocks footage in Windows Movie Maker. Visit http://www.videoblocks.com/freeclips for 7 days...

Via Ileane Smith
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