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Aida Hazlan
Lives in Kuching, Sarawak, Malaysia
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Hot Lava Over Cold Ice

❆ The 2010 eruption of Eyjafjallajokull in Iceland highlighted the importance of understanding what happens when volcanoes erupt through ice.

❅ In order to improve our understanding of these spectacular events, we have conducted large-scale experiments by pouring 100-300 kg (~220-660 pounds) of melted rock onto blocks of ice and snow (http://blogs.dickinson.edu/edwardsb/2012/08/29/lava-ice-snow-experiments-at-syracuse/).

❄ The preliminary results of this study are both expected (ice melts!) and somewhat unexpected (lava can travel on top of snow; melted water can bubble up through lava).

☼ Benjamin Edwards and colleagues have also tested the ability of layers of volcanic ash (sand in the experiments) to slow down the melting process.

☀ Results show that if ice or snow is covered by volcanic ash at the start of an eruption, this will significantly slow the rate of melting if lava flows later move over the ash-covered ice.

❃ These experiments show good agreement with observations from volcanic eruptions in Iceland and Sicily, including the ability of lava to find weaknesses in ice and a tunnel underneath ice.

❋ Once the lava has found its way to the base of the ice, it can continue to flow beneath the ice layers by exploiting pre-existing fractures.

References and Further Reading:

1. Article from : http://www.geosociety.org/news/pr/13-40.htm
2.http://geology.gsapubs.org/content/early/2013/06/20/G34305.1.abstract
3. http://www.earthmagazine.org/article/do-it-yourself-lava-flows

GIF Source : http://goo.gl/PSudht

#scienceeveryday   #lava   #ice  
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Captain Jack's profile photoKristin Gleitsman's profile photoЯвор Атанасов's profile photoita williams Jackson's profile photo
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Let's be honest everyone: you just made up reasons for you to get funded to pour lava on blocks of ice right?
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Aida Hazlan

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Phoenix - Lisztomania

Let's go slowly discouraged,
We'll burn the pictures instead
When it's all over we can barely discuss
For one minute only,
not with the fortunate only
Thought it could have been something else
These days it comes, it comes, it comes, it comes, it comes and goes
5
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4th April 2015 : Total Lunar Eclipse

Total Lunar Eclipse or “Blood Moon”, is on April 4, 2015 and The Moon will be totally eclipsed (totality) for about 5 minutes - shortest duration in the 21st century. From beginning to end, it will last for 3 hours and 29 mins. 

The reason why the Moon takes on a reddish colour during totality is a process called Rayleigh scattering. It is the same mechanism responsible for causing colourful sunrises and sunsets and the sky to look blue.

This will be the only lunar eclipse that can be observed in Malaysia this year. According to ANGKASA (Malaysia National Space Agency), the phenomena begins at 5.01 pm when the moon enters the penumbra. Full lunar eclipse will take place at 8 am and ends at 10.59 as the moon exits the penumbra phase. http://goo.gl/6o4WPt

#lunareclipse   #eclipse2015  
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Pam  Freeman's profile photoElizabeth Doxtator-Morenberg's profile photoCandid Soto's profile photoHami Asraff's profile photo
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+Pshtiwan Dler Today. 
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Aida Hazlan

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German Shepherd Puppy Helps Load The Dishwasher

Baron the German shepherd is a service dog in training who doesn't mind assisting with after-dinner chores. His owner, Linda Gonzalez, told The Huffington Post that teaching her pup the trick wasn't very difficult -- it was a simple step-by-step process. Baron was just six months old when the video was filmed

From +The Huffington Post http://goo.gl/fMcMKi #FidoFriday
2009
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Marionette The Puppet's profile photoKawaii Lorna's profile photoMichel darbo's profile photoRosa Morales's profile photo
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Impresive
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Aida Hazlan

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Sunny Caturday!

Time-lapse GIF of sunbathing cats moving With the sun ray.

Via : GIPHY http://goo.gl/ZgHzRE #caturday  
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Cats are getting the sun light that is cool 
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Popping Popcorn

Emmanuel Virot & Alexandre Ponomarenko, scientists at the Pierre and Marie Curie University investigated the critical temperature, jump and sound of the popcorn. 

Their findings concerning the physics of popcorn :

Critical temperature:  Tc ≈ 180 ◦C at which almost all of popcorn pops is consistent with an elementary pressure vessel scenario.
The jump : A leg of starch which is compressed to the ground.
The popping sound : Explosive release of water vapour.

Further reading : http://goo.gl/tD0zXj
GIF source : http://goo.gl/ZB97Mj 

#scienceeveryday   #popcorn  
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+Han Honso Water. 
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In light of today's event, I find this graphic hilarious !

Source : http://goo.gl/gjAfLC
Credit : Original joke & creator - Katie Mack http://goo.gl/93J7kl

  #sciencememe   #eclipse2015  
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coll!
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Danjon Scale : Rating A Lunar Eclipse

❂ The French astronomer A. Danjon proposed a useful five point scale for evaluating the visual appearance and brightness of the Moon during total lunar eclipses. 'L' values for various luminosities are defined as follows:

     L = 0     Very dark eclipse.
                   Moon almost invisible, especially at mid-totality.

     L = 1     Dark Eclipse, gray or brownish in coloration.
                   Details distinguishable only with difficulty.

     L = 2     Deep red or rust-colored eclipse.
                   Very dark central shadow, while outer edge of umbra
                   is relatively bright.

     L = 3     Brick-red eclipse.
                   Umbral shadow usually has a bright or yellow rim.

     L = 4     Very bright copper-red or orange eclipse.
                   Umbral shadow has a bluish, very bright rim.

❂  The assignment of an 'L' value to lunar eclipses is best done with the naked eye, binoculars or a small telescope near the time of mid-totality. It's also useful to examine the Moon's appearance just after the beginning and before the end of totality.

Source : http://eclipse.gsfc.nasa.gov/OH/Danjon.html

#scienceeveryday   #lunareclipse   #eclipse2015   #BloodMoon  
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Superhydrophobic Coating Art

Seattle-based artist Peregrine Church created a series of street art pieces called “Rainworks,” which are activated when it rains. An invisible ink, its superhydrophobic coating is non-toxic and temporary. Although the use of superhydrophobic coating first began in Germany to fight off public urination, Church has modified its use for an artistic and inspirational project.

It would be nice if the municipal council in Kuching made these on the streets / building walls because Kuching is the wettest populated area (on average) in Malaysia with an average of 247 rainy days per year!

Source : +Culture N Lifestyle http://goo.gl/6zYTiI

#science   #art   #hydrophobic  
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What a great idea. Both as a safety measure, and as art - we have 4-month long monsoons, and it could work so well!
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Earth's Plates Change Over Time

⇛ The GIF is showing frame by frame in 1 million year increment model of tectonic movement.

⇚ According to Sabin Zahirovic, a geodynamicist at the University of Sydney in Australia the tectonic plates can change their motion (speed and direction) over geologically short periods of time, about 1 million years.

⇎ Earth is in a constant state of change and it looks different than it was 250 million years ago when there was only one continent, called Pangaea, and one ocean, called Panthalassa.

⇕ At an average rate of 1.53 cm, land masses move apart and toward each other. The heat from radioactive processes within the planet’s interior causes the plates to move, sometimes toward and sometimes away from each other.

Sources :

HuffPo Science : http://goo.gl/pzhqVy
USGS : http://goo.gl/PozQLi
NOAA : http://goo.gl/6u6vcf

#sciencesunday   #tectonic  #geography 
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Thanks for the explanation and responsr +Kenneth Schmandt​ 👍
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Catapult Chameleon Tongue

❧ Chameleons may be best known for their amazing colour-changing ways, but their tongues may be even more amazing. To capture prey, chameleons ballistically project their tongues as far as 1.5 body lengths with accelerations of up to 500 m s(-2).

❧ At the core of a chameleon's tongue is a cylindrical tongue skeleton surrounded by the accelerator muscle. Previously, the cylindrical accelerator muscle was assumed to power tongue projection directly during the actual fast projection of the tongue.

❧ However, high-speed recordings of Chamaeleo melleri and C. pardalis reveal that peak powers of 3000 W kg(-1) are necessary to generate the observed accelerations, which exceed the accelerator muscle's capacity by at least five to 10-fold

❧ Extrinsic structures might power projection via the tongue skeleton. High-speed fluoroscopy suggests that they contribute less than 10% of the required peak instantaneous power. Thus, the projection power must be generated predominantly within the tongue, and an energy-storage-and-release mechanism must be at work. All just to send a tiny tongue flying towards tiny prey!

Sources: 
Proc Biol Sci. 2004 Apr 7; 271(1540): 761–770.http://goo.gl/uUWyNz
Huffpost Science : http://goo.gl/ZVgw4D

#scienceeveryday   #chameleon   
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+Aida Hazlan that's the kind of irrational rage against a particular depiction of a superhero that I can actually support :D "Make Chameleon worthy of its name!"
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Sodium polyacrylate: The fluff that absorbs water!

❅ Sodium polyacrylate is an example of a super-absorbing polymer. It is a cross-linked (network) polymer that contains sodium atoms. It absorbs water by a process called osmosis. 

Explanation from; http://goo.gl/IPzPU2 (h/t +Rajini Rao)

The white powder is a polymer of sodium polyacrylate. The particles have a membrane of the polyacrylate which surrounds the sodium ions. By the process of osmosis, the water is attracted to the sodium polyacrylate because it contains sodium ions (an ion that you would find in table salt).

It expands the crystals of the powder and makes it into solid like gel. This is an example of an osmosis process reaction involving a polymer. Sodium polyacrylate contains a high number of sodium ions within each particle. Water is highly attracted to sodium ions. So when the water is poured into the beaker containing the sodium polyacrylate, it moves into the individual powder particles and expands the polymer particles to become a solid like gel.

❄  Sodium polyacrylate can absorb 800 times its weight in distilled water, but only 300 times its weight in tap water, since tap water contains some sodium, calcium and other mineral salts.

Source : http://goo.gl/PwVwUT   #sciencesunday   #scienceeveryday   #chemistry  
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Nice information
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