Incredible Innovation by Unlikely Bird

Many people know that cockatoos are quite intelligent animals – they can learn to talk, do tricks and even to manipulate their owners in order to get what they want. However, Figaro, a Goffin’s cockatoo (pictured below), has learned how to get what he wants without the help of humans.

Sam Mugraby via Wikimedia Commons

Figaro has invented and used stick tools in order to reach objects that he is unable to get using his beak or claws. While there are reports of tool innovations in corvids, a family that includes most of the mischievous birds, such as crows and magpies, it is unusual to fine these innovations in  other families of birds.

Figaro’s ability became apparent when he was observed trying to use a piece of bamboo to retrieve a stone that he had been unable to reach using his claws. Immediately after this behaviour was observed Figaro was visually isolated from the group and testing began.

When researchers placed cashew nuts on the outside of the cage, Figaro broke off pieces from a large wood beam with his beak and used them to rake the nut towards him until he was able to reach it.

Figaro can be seen working with his tools in this video documenting the experiment:

YouTube Preview Image via youtube user Sergeytule

The time for manufacturing of the tools showed a dramatic decrease across trials; while the first tool took almost 25 minutes to make, the tools used in following trials only took about 2.5 minutes

Unfortunately, not all cockatoos are as intelligent as Figaro. When testing Pipin, another male in the same conditions as Figaro, he did not try to use tools. However, Hiedi, a submissive female whowas left with Figaro during the experiment, demonstrated some of Figaro’s behaviours like breaking off pieces of wood and pushing them through the wire cage,  but she did not exhibit the same success at tool making.

According to Frans de Waal , a neuroscience and animal behaviour researcher, discovering these skills in even a singular bird shows that the general intelligence that cockatoos are known to possess can lead to novel, innovative behaviours.

It is not clear what the cognitive mechanisms underlying these innovations are, and it is not known if tools play a major role in the species’ ecology, but the evidence found from this experiment provides a basis for much more in-depth research into the developmental history and evolution of this group of birds.

– Miranda Marchand

Environmental Change: the Impact on Animal Species

Recently, there has been increasing evidence of global environmental changes such as rapid Arctic ice melting at an unprecedented rate and increasing carbon dioxide emissions. Rapid changes in environmental conditions cause large impacts on nature, including different species of animals.

What are some of these species affected by changes in their environment?

1. Carbon dioxide emissions have increased the acidity of oceans, thus affecting the SEA OTTER’s food sources– clams, urchins and abalones are unable to produce their carbonate shells.

A sea otter swimming Mike Baird via Wikimedia Commons

2.Warming, acidifying waters affect the CORALS because it causes destruction of their habitat and coral bleaching.  Bleaching occurs when zooxanthellae algae decrease in their photosynthesis pigments and fail to provide oxygen for the coral.   

Coral by NOAA Photo Library via Wikimedia Commons

3. One of the smallest whales present in the Arctic, the BELUGA WHALE, has a melon shaped head and a broad beak. Their abundance has decreased due to melting ice sheets and human intrusion by boats.

Beluga at Vancouver Aquarium taken by Stan Shebs via Wikimedia Commons

4. The KOALA BEAR acquires nutrients from EUCALYPTUS TREE leaves, however, increasing CO2 levels in atmosphere have affected the quality of the leaves being produced.

A Koala bear crawling by Thomasgl via Wikimedia Commons

Eucalyptus Tree by Jeantosti via Wikimedia Commons

 

 

 

 

 

 

So what are some steps that we can take to slow down the rate of environmental destruction?

We can decrease the use of energy and simply being aware of what changes are happening around the world. 

Losing any kind of species causes imbalance to the ecosystem and is not very good news for life on Earth. Though we cannot easily reverse the damage done to these environments, the steps noted above can definitely contribute to helping to lessen the amount of species extinctions.

-Candy KT Fu

Laughter is the Best Medicine?

Now I know, we’ve all heard time and time again “Laughter is the best medicine”, but where did this saying even come from? Is there any scientific backing to this?

Laughing child
(Picture from Pixabay.com, user Greyerbaby)

Well, turns out there is.

Dr. Lee Berk, an associate professor  at the School of Allied Health Professions at Loma Linda University, has been studying the effects of laughing, or humor, on the human body for years. In one of his experiments in the 1990’s, it was found that after watching something comedic, or funny, ones immune system created more t-cells, which are essential for fighting off infected cells in the body. Watching something funny and laughing ‘mirthfully’, as he describes it, helps to lower ones blood pressure, and improves the function of blood vessels.

It is also known that laughter releases endorphins in the body, which are neurotransmitters, responsible for the the ‘feel good’ chemicals of the body. Laughing also helps to relax muscles, and decrease pain.
YouTube Preview Image
Video: youtube user LifestyleMagazine08
Above is a video of an interview with Dr. Berk himself explaining his work, and some of his findings.

Researchers estimate that laughing 100 times is near the equivalent of using a rowing machine for 10 minutes, or an exercise bike for 15 minutes! Did you ever wonder why after a good long laugh you have trouble breathing, or your abdominal area hurts? Its because laughing is near the equivalent of an aerobic workout! Just make sure your laugh is a full and hearty one, fake and/or light laughter is not nearly as effective.

So next time you’re feeling under the weather, don’t mope about it. Pop in a funny movie and let your laughter help heal you!

-Christina Bell

Fire rainbows – not really a rainbow on fire

A fire rainbow, via deviantART user: ~daslasher1 For more pictures from ~daslasher1, click here.

I’m sure we all have seen rainbows after the rain and rosy-hued clouds during the sunset. The rainbows and the sunsets can make beautiful sceneries, but if the two phenomena could happen at once, wouldn’t it be twice as beautiful?

A 22° halo, via wikimedia commons user: Andrzej Barabasz

Indeed, such phenomenon does occur. It is better known to the public as the “fire rainbow,” than its actual name, the “circumhorizontal (or circumhorizon) arc.” Although it is called a fire rainbow, it is neither a rainbow nor is related to fire. It is really a halo that is made by ice crystals in the cloud refracting the sunlight. The circumhorizontal arcs are unlike common halos (22° halos). Whereas 22° halos are seen fairly close to the sun, circumhorizontal arcs form much further, closer and parallel to the horizon. In addition, to observe, the circumhorizontal arc requires specific angles of the sun and a specific kind of cloud.

cirrus cloud, via wikimedia commons user: Saperaud

Firstly, there need to be cirrus clouds.  Cirrus clouds form more than 6000m high, and contain ice crystals in which sunlight is refracted. The arc is brighter if the cloud is thicker, since more crystals will refract more sunlight. Secondly, the sun must be higher than 58°. Such height of the sun is possible only between latitudes 55°N and 55°S. It is impossible to see the circumhorizon arc outside of these latitudes, because the sun will never rise high enough. Fortunately, the latitude of Vancouver is 49°N. This link (click here) shows a graph of months in a year when circumhorizontal arcs can be formed. In Seattle, the arcs may be observed from mid-April through mid-August. Since Vancouver is just north of Seattle, there won’t be much difference.

So, during the summer when the sun is at its highest and if there are some cirrus clouds in the sky, be sure to look around! You may be able to witness a beautiful fire rainbow as these seen in New BrunswickSeattle (and another), and Toronto.

Meet Angelina: Is Sci-Fi no longer fiction?

Our sci-fi movie industry makes intelligent machines seem a thing of the distant future, but that may not be so true after meeting Angelina. Michael Cook from Britain’s Imperial College in the Department of Computing has taken the first step towards creating an intelligent system that uses previous games to create an entirely new one. This field in the computing sciences is called Artificial Intelligence  or AI. Michael Cook’s system, named Angelina, falls right into this category as it allows a computer system to perform a task that would normally require a human programmer.

Michael Cook: PhD candidate from Imperial College who created Angelina.                   Credit: Micheal Cook

So is it true? Will machines be better workers at some of our jobs?

Not quite.

Angelina (or “A Novel Game-Evolving Labrat I’ve Named Angelina”) takes chunks of previously written code, examines their usability and applies them when required to a new program. The combination of borrowed code resulted in a fully running Christmas-themed video game called “A Puzzling Present” created by Angelina. Though ‘her’ ability to correct mistakes, analyze difficulty levels and reference previously written code is a powerful advancement in the field of technology, it does not substitute human programmers. Yet. Intriguingly, another feature Cook has been able to incorporate into his system Angelina, is the ability to identify a bug (a faulty piece of code) and turn it into a feature. This ability is now more than just copying and pasting or understanding how code works, this is now modifying for a purpose. This may not seem like much, but the ‘thought-process’ and learning is what counts.

A Puzzling Present: video game created by Angelina
Credits: Michael Cook

Angelina may not be up to the standards of the movie Eagle Eye yet, but her new features make this system a powerful asset and resource to our current technology. According to Cook’s predictions, Angelina will not be able to replace programmers, but rather aid them as an expert assistant.

2013 will shed light into new features of Angelina, as she is still a work in progress. To all the sci-fi movie lovers out there, keep in mind that fiction may now be onto something.

-Andrea LeonChu

 

Levitation by Superconducting Materials

File:Levitation of a magnet on a superconductor.jpg

Here is a photo of a magnet levitating above a super conductor.
via Wikimedia user Judobroff

Above you see a photo of a magnet that is “magically” floating. This photo raises many questions. How is this magnet floating? Could this lead to floating objects in real life? Could we float cars? Well here are your answers:

The magnet floats because of the surface composition. The surface is made of sapphire crystals, an aluminum oxide compound, which are poor conductors. Then it is coated with yttrium copper oxide which is a super conductor. Super conductors are compounds that will conduct electricity without resistance below a certain temperature.

More over, Super conductors hate magnetic fields due to the Meissner Effect. They allow electric current to flow easily. When this surface is put near a magnetic field currents are created to expel the field inside. Then the magnet doesn’t move because the surface doesn’t want to change it’s magnetic field. The magnet is held above the surface because of tiny gaps in the surface that the magnetic field seeps into.

Here is an example of what happens when the super conductor is made into a disc and is placed above magnets.

YouTube Preview Image

via youtube user newscientistvideo

In this video you see that the disc is suspended about the magnets just as the magnet is suspended in the photo above. This happens for all the reasons are listed above.

So the questions remains, is this going to be the new technology that leads to hovering objects or even hovering cars? Well firstly, the superconducting surface only works because it is cooled with liquid nitrogen. Therefore we would have to have our roads covered in liquid nitrogen which is not quite possible yet. In addition, these cars would have to be completely made of magnets. So unfortunately, no. I don’t think this is going to lead to hovering cars anytime soon.

This is unfortunate because hovering cars could be useful to us in life. If the magnets were powerful enough and the technology was advanced enough we could have more freedom on the roads. Cars would no longer have to stick to the road and stay behind each other. We would have the freedom to float anywhere and maybe even fly under or above other cars. For now though, we are going to need to stick to the same old technology of wheels rolling along the pavement.