Friday, 12 September 2008

The LHC, Dark Energy, Black holes and us

I'm sure most of you have heard of this new experiment running at the Large Hadron Collider (LHC) at CERN in Switzerland. It's just one of those pieces of news that you have trouble avoiding with all the hyper media attention. Black holes and the possibility of the world ending as the scientists push the button for this gigantic machine to work!

Remember the Y2K bug? yeah almost forgotten by now, but at that time there was much speculation of the possibility of the world ending, with all the computers getting confused and unimaginable chaos to follow....... but you just woke up the next morning only to find that you are still alive and you still have to make your own cup of morning tea and go to work.

Same story.


So what's this thing about this LHC experiment?

Warning: Mild Science Content!

When I put on my scientific shoes, the Large Hadron Collider (LHC) experiments are one of the most exciting things to have ever happened, right there along with the man landing on the moon.
We might finally find the answer to the age old question of how did the Universe begin and
this might sound funny but what are we made of? and also was Einstein correct?

Now the possibility of answering these questions would get any scientist jumping up and down with excitement! And that is quite understandable for these were THE questions that kept these people awake at night for centuries. And the uncovering of these answers might open up a whole new dimension literally!


So what's the big deal you may ask, we can still go on living life without knowing these gobbledygook. That's where I put on my philosophical shoes.


It's true that we don't need to know how the world began or whether relativity is correct to go about our daily lives. And besides what's all this knowledge for? ok suppose we did prove that there was a big bang and the universe is expanding and we are made out of this elusive Higgs boson and that Einstein was correct! So what? We still have to take that crowded train to work, we still have to put up with the troublesome boss and we still have to eat through our mouths.

The pursuit of all this incomprehensible knowledge is just to quench the humans thirst for curiosity.


Or is it?


Since the beginning of time humans have had this curiosity, to know who's living in the next cave, to perfect the art of hunting and to find out what's up there in the heavens. This curiosity is what has brought us to where we are now.

Most of the time when discoveries are made we don't realize it's potential straight away, it takes time to find applications. So could these experiments at the LHC be one of those that hands us the key to unlocking a door, behind which lies endless possibilities???


Only time can tell!

Monday, 25 August 2008

The Mystical Dendenong Ranges and other stories

The Dandenong ranges are located just about an hours drive Eastwards from the City of Melbourne.

The area is a horticulturists paradise! Which does explain why there were so many plant nurseries, bonsai nurseries, gardens of all sorts and fertiliser vendors all over the place.
Mist.....thicker than the Beijing fog! This along with the winding mountain roads made driving a bit scary at times

I wandered lonely as a cloud
That floats on high o'er vales and hills,
When all at once I saw a crowd,
A host, of golden daffodils

There were Lots of unknown flowers like this one, even in the winter.


A green flower, looks like a variety of Euphorbia.



More Unidentifiable flowers and plants

Huge Gum trees!! makes you feel kind of ............... small.

?? Not sure what this was all about

A Crimson Rosella

A Laughing Kookaburra. There were plenty of these around but none came so close as to get a good shot. Why is it called a Laughing Kookaburra you may ask, well in that case you haven't heard the Kookaburra's call. Unfortunately I couldn't catch one on video for your listening pleasure so you'll have to have a listen here.

I wish more birds would sing like that!!

There are some very interesting aboriginal stories built around the Kookaburra. On Saturday night I read that aborogines in the area had this story that the Kookaburra's loud call is a request to the sky people to light up the mighty fire that lightens up the world. And sure enough the next day I heard the Kookaburras going on about something before day-break, and what do you know before long the sun was up!


A puffed up Australian Magpie


Ruby! One of our very friendly hosts for the night


mmmmmmmmmmmmmmmmmmm.......... a local lunch!

The William Ricketts Sanctuary
One of the renowned gardens & parks in this area. William Ricketts was a sculpture/ artist who was inspired by the spirituality among the aboriginal people.

It is said that the aboriginals have (more so had) a very close connection with mother nature, instead of fighting nature and overcoming it, the aboriginal people knew that the best way is to live with the nature in harmony.

This lead William Ricketts to do his bit to let the word spread. Therefore his sculptures depicted aboriginal figures blending in with the soil and the trees and the rest of mother earth.



A man with two lyer birds on his shoulders

Mother Earth


Thun Sithaka Raavaya
And to top off the great weekend, we got to listen to some intoxicatingly beautiful voices.

Dooooowili.................


This was not really in the Dandenong ranges, but it's not often that the diaspora get to listen to this kind of thing so didn't want to miss this!
The unforgettable Apple mala

Thun Sithaka Raavaya taking leave from the stage.

They didn't forget to sing all my favourites.........which was quite a lot!!

Thursday, 21 August 2008

Tuesday, 12 August 2008

Through the eyes of a wild animal: Part 2

Our general idea of an eye is a round white ball with a black circle in the middle of it. However not all animals have this kind of geometrical arrangement. One example you would be most familiar with is the cats eye, which takes an elongated oval shape during the day time. But you probably wouldn't have come across some of these unusual pupil shapes that I've got below.


Most of us know the cat's version of the story. These cute fur balls have eyes that are able to see in dark conditions, increasing their sensitivity to light. Thus to protect their eyes from the glare of the sunlight during daytime the pupils contract to a mere thin vertical line. And if you see a cat lying around with droopy eyelids with that typical 'don't care' attitude, it's nothing more than trying to protect his eyes!


Next time you visit New Zealand, you can directly look in the eye of a local and see if this is true. Sheep and even horses (below) have a horizontally elongated pupil, increasing their field of view to around 290 degrees. Again another adaptation for a animal of prey.


I have no idea why these beasts have got a bean shaped pupil, the elongation is probably to do with being the hunted party.


Look at those heavy eyelashes! Would work very well for a mascara advertisement!!?
Seriously, the square shape is a very uncommon shape in nature. The heavy lashes are to protect their eyes against sand storms, but square pupil?? no idea.


That shape looks quite funny, but that bump in the pupil is to give the hippo the ability to see out over the surface of the water. So he can keep himself half immersed in his luxurious bath and gaze out over the water level.


The magnificent horse has a blind spot directly in front of it, so even if he can see a wide field of view, the image will have a dark slit at the front.


This half circle can be rotated. So when the deer is grazing the hemispheric pupil will come down, keeping level with the horizon.

I must mention that I borrowed these pictures from this site (what with all these allegations of photo theft going around in the blogosphere!) And if you do like to know some more interesting stuff about how frogs, birds etc use their vision you will find them here.

Saturday, 2 August 2008

Through the eyes of a wild animal: Part 1

The location and structure of the human eyes enable us not only to see how long and wide an object is but also to see how far away it is from us and how thick it is. If we had 2D vision (like what you get when you close one eye and look through the other) we would still be able to see objects clearly but judging the distance would be a problem, so we would look rather clumsy trying to grab things that are further beyond our reach.

So for this reason nature has decided to give the natural predators/ carnivores the ability to see in 3D. Or else finding something to eat would be quite a challenge! Thus most of the predators have their eyes located at the front of their head, a feature of 3D or stereoscopic vision. So think of the big hunters like the tiger, cheetah, leopard, lion (lioness rather), wolf, hawk (more or less), bear, owl etc. all of these have their eyes located at the front of their heads. This gives them the ability to judge the distance to their food and pounce upon it at the right moment.




awww.......... purrr

And what about the prey? the hunted? Well, as far as they are concerned they would rather prefer to have the ability to scan a wide area than be able to see in 3D. Because ill judging the distance to the grass patch is not going to be fatal, but not being able to see the hunter creeping up from behind is! Therefore most of the hunted animals have their eyes located on either side of their heads giving them access to a panoramic view. Deer, antelope, horse, zebra, goat , sheep, buffalo and the like. These animals can only see in 2D, but they have a wide field of view almost close to 360 degrees enabling them to spot any suspicious activity around them.


Eyes focused on the grass


But of course nature is pretty diverse. And there are very many types of visionaries and all of them can't be categorised into these two classes. But at any time in your life if you do find some unidentifiable wild animal charging towards you, and if it has got its eyes at the front of its head, you are in deep trouble!

And what about us humans? does this mean that we are born predators? Well I'm not an expert in natural history but if you ask one he or she would probably argue that this has to do with humans being descendents of apes, if you believe in Darwin that is (the natural historian not the blogger). So for our predescessors it was vital to be able to judge the distance to the next swingable tree branch (I just made that word up I think). So we humans inherited the 3D vision due to this reason.


So you could say we were born to be Tarzan!

Monday, 21 July 2008

A Bird's Tale

Reading Gallicissa's blog reminded me of an incident that took place about 3 years ago.

Setting: Sri Lanka, parent's home

It wasn't just once when birds searching for a place to make a nest to raise a family decided the best location for the new house was on a Ficus tree in our courtyard, inside the house. The parents-to-be would come into the house, inspect the location, the tree, all the branches and all the while talking with each other (trying to make a decision I guess) and then leave, after about 2 or 3 inspections, they would decide whether they are going to build the nest or not.

The first time someone decided that a high-up branch on the tree is the best spot were a couple of Kondayas (apologies for not knowing the real or scientific name of these birds, maybe Gallicissa can help!).

They built the nest and laid the eggs. There were 3 small eggs with brown spots. We could conveniently see into the nest from the second storey. We watched as the parents took turns in hatching the eggs, and going out in search of food. We watched as the eggs hatched and two teeny weeny pinky babies came out. The third one was a bit late, but eventually did manage to squeeze out. We watched as they grew feeding on whatever their parents brought home.

And then one fine day the little ones decided that it was time to stretch their wings. This was quite an exciting and anxious time, not only for the parents but even more for us, because just a few feet away from the foot of the tree was the fish pond. And then there was good old Bingo. Dogs are not generally interested in a bird for a meal, not even for an afternoon snack for that matter, but anyone fluttering around in 'his' house becomes his problem, so was a bit scary. And then there was the stealthy kitty cat, always choosing the most inappropriate times to show up.

So the little birdies took to the sky...... or more towards the ground. They would fly as far as their little wings would carry them........like a few centimeters at a time. Then they would sit on a low hanging branch of a plant, sometimes on a fern just over the edge of the pond (gulp!) and rest for about an hour before finally gathering up the strength to do it all again! The bird parents were behaving like any normal Sri Lankan parent would when their little ones first start moving around.......screaming, or rather chirping at high frequency and running behind the little ones excited and nervous at the same time. And whenever it seems that the babies were having trouble getting back to the nest, the mother or the father would demonstrate how it should be done, over and over again until the little birdie made the attempt.

This drama went on for a few days, quite nerve wracking for us knowing the potential dangers lurking in the vicinity. Fortunately everything went according to plan. Once the babies had had enough training the parents led them out to see the wide world. They flew up to the window, sat there for what seemed like ages, and finally made the move. The younger sibling, who seemed a bit smaller and backward than the others took a few more hours in mustering up the strength, but he (or she) too finally joined the others. The parents were heard making quite a racket outside for a while.

A couple of days later I spotted three Kondayas on the bird's eye chili tree (their favourite fruit, I think) and I knew it was them because one seemed a bit smaller than the other two. And they seemed to be happy, and it was really nice to see them doing well in bird society!

However not all bird's tales have a fairytale ending.

A few months later (or was it a year.....not sure) a couple of kondayas came in to inspect the ficus tree (Deja vu). I'm not sure if it were the same couple, for birds don't have facial features where we humans can distinguish between Tom, Dick and Harry (or maybe more likely chirp, choop and cheep). Anyhow, they built the nest again, and this time there were 2 little eggs. The eggs hatched and two little kondayas came out.

But this time the story took an unexpected turn, the bird mother was most tragically murdered.... the suspect was caught red handed (or feather mouthed) licking its paws and lying on its side quite content with the deed. The cat didn't get any lunch from me that day, he didn't seem to need any either....well, that's what he was born to do I guess.

The bird father had his hands full bringing up two children on his own. The elder one seemed a bit rebellious, for he left the house and straight into the wide world while the father was away gathering food. The father returned to find only the younger child on a plant in the courtyard, so he rushed outside chirping away to look for his other child.
The next day the younger one was seen sitting on the window grill looking into the unknown world out there. He looked quite vulnerable without the mother to guide him out.

Later on the day I was just outside that window, filling in the bird bath under the frangipani tree, when the little guy suddenly decided to make a dash for the nearest frangipani branch. Awwww...

As I watched the little bird sitting on the branch, I could see past him another pair of eyes watching intently. Kurulugoya! (again sorry I only know the names of these birds in layman's terms). It was such a helpless moment....I knew what's going to happen, and I knew I can't do anything about it, but I wanted to do something to save this innocent fellow, but there was nothing I could do....I can't shoo away the little guy for he could hardly fly, I can't stop the predator bird I didn't have enough time to cover ground...And all of these within a fraction of a second. So I watched helplessly as the big bird whizzed in.... like a missile, eyes focused on its target.

Swooooosh!!

Gone!

Wednesday, 16 July 2008

Spam News

I'm doing some experiments today and taking some measurements. In between each set of measurements I have to keep an interval of about an hour for the machine to cool down before I take the next set of readings. I need to take about 5 sets of readings which means it's going to take 5+ hours of the day, and in between those readings what do I do?

First hour or two I managed to finish off tit-bits of other unfinished work, play a game of sudoku, arrange my desktop folders etc. Then I opened my junk mail folder to sort through the junk and to see if some non-junk mail has been wrongly accused by the mail authorities. Fortunately there wasn't any, however one mail title caught my eye

"Afghan bomber kills Bush"
This sudden suppressed laugh/murmer escaped me. Seems the spammers are being creative nowadays. They are probably begining to realize that the old fashioned 'remedies for bodily defects', 'designer wear at low prices', 'free tickets to watch Oprah', 'Winning a lottery ticket in some remote land' and of course 'the death of an unknown relative who left you a million dollars' is now a bit too known to their victims.

So they are coming up with new ideas to get those people to click! And of course who can resist "Afghan bomber kills Bush" I have to give credit to those spammies, that title looks very tempting!

Sunday, 29 June 2008

Pani Kadju!


Crush the cashews


Caremelize some sugar
Stir in the crushed nuts into the mixture
Pour it over a flat surface and cut into squares


Simple as that!!

Wednesday, 25 June 2008

Mrs. Craddock by W Somerset Maugham

Bertha Ley is a beautiful, intelligent and well- refined young lady who falls madly in love with the handsome Edward Craddock, a farmer and a tenant of his father. The objections of her well-bred relatives’ only aids in driving this determined young woman to marry this man who she believes is the only man for her. But the honeymoon ends too soon and Bertha realizes that Edward can’t return her the romantic love she offers him. Edward is a dutiful and rather self-centred gentleman who respects everyone’s wishes in the same way as to those of his wife’s. He has no priority set towards his wife’s requests and sets out to drive two ladies to town while his wife is on sick bed after a still birth simply because Bertha’s request for him to stay at home with her came later than the ladies’ request of driving them to town.

Depressed and bored Bertha sets out to join her aunt in travelling to Rome on holiday only to return to Edward again and again, and find herself trapped in a loveless marriage that she didn’t wish for. Ironically the man who was initially loved only by Bertha but looked down upon by everyone else ends up being loved and highly admired by all but one…...Bertha.

Somerset Maugham takes us into the lives of a handful of characters very different to each other and when brought together inflicts pain and joy upon each other due to their differences in nature, and not because one person is morally better than the other.

Nice read.

Tuesday, 17 June 2008

What goes into a Marshmallow



Heaps of sugar mixed with a little bit of water



A touch of Gelatine for that sticky feeling



Pinch of colour & essence
And a dip in icing sugar for the finishing touch




And loads and loads of air bubbles trapped inside!!