Google+ Stuff That Matters! : November 2014 Google+

Saturday 22 November 2014

Announcing the Calcutta Canvas initiative 

Well, this is my new initiative, to do something useful for my homecity. Please consider joining the cause, if you're from Kolkata, or simply like the city. 

Anirban Chatterjee originally shared:
Announcing the Calcutta Canvas initiative 

My friends, 
Once of the recent ideas that struck me, revolves around building a sort of central gathering point, a knowledgebase if you'd like, for the city of Kolkata. After years of searching online for more information on the city, I've seen that only a minimal amount of that is available. And this is what I'm intending to change. 

The result is Calcutta Canvas, a project/initiative/mission/cause dedicated to the singular purpose of gathering and catering quality information on the city. I have the following plans for the initiative: 

1. G+, Twitter & Facebook accounts, with automated posting support. Whenever an article is posted on the site, the followers on G+, FB and Twitter will be automatically notified (as you see with my StuffThatMatters posts). 

The blog address that I've registered is http://ift.tt/152XkIV and it'll be a group blog. I'll gladly accept anyone and everyone who can post anything on Kolkata. Whether you're from the city, or fancy it, or have taken a single trip to it, you're more than welcome to share your story, experience, info about anything Kolkata-specific etc. 

2. Noncommercial, no ads. For now at least, the project will be strictly noncommercial and voluntary. We won't generate any revenue from the service, because we too will benefit from the info available there. 

3. Dedicated forums and chatrooms. Once it gathers momentum, I'll build the necessary forum and chatrooms as required for the project, which will serve as a virtual gathering place for the readers and writers. 

4. Android app. Yes, I intend to make an Android app, for the task of bringing the latest articles from the site to the smartphone userbase. 

5. English, Bengali and Hindi, all 3 languages are welcome for posts. 

6. Dedicated categories for the articles include: 
A. My Story (about your experience in Kolkata)
B. News (anything relevant to Kolkata and Calcuttans)
C. Events (any event in and around Kolkata)
D. Reviews (got your opinion on a shop, restaurant, service etc? share it here) 
E. Tourism (about places in and around Kolkata, or anything in India, at least) 
F. Culture (stories, poetry etc as long as it's original)
G. Opinion (well, anything and everything about Kolkata)

Today, I've just started the project, at 7:00 PM. As such, it's still in infancy, as you see. Once the ball gets rolling, it'll benefit newcomers to the city, tourists, residents and everyone else. 

Disclaimer

I am just a resident of this city, and I intend to volunteer. Since this project is noncommercial, neither I nor anyone else will get money for working. Rather, it'll be like posting on social media, posting for posting's sake, but something that'll benefit a lot of people. 

If you're interested, please do immediately consider replying. Let us do something useful for the City of Joy!

http://ift.tt/1r9hDc8 

#westbengal   #calcutta   #kolkata   #india  

Calcutta Canvas - Google+
The beating heart of the City of Joy!


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Friday 21 November 2014

Turn the screen into your personal planetarium, with Stellarium 

Turn the screen into your personal planetarium, with Stellarium 
StuffThatMatters: Astronomy & Computing 

One of the greatest things about modern computer software, counting in the power and flexibility of open source and the imagination of human mind, is our growing ability to simulate natural systems using digital means. I discussed Step and Celestia as part of Linux's educational software suite, and this time, let's discuss Stellarium

Planetariums have always fascinated me, dedicated singularly to the task of catering audio-visual edutainment on a myriad variety of topics, centering around my favourite domain of study, the universe. I am lucky to be a resident of Kolkata, India which houses the second largest planetarium in the world, the M.D Birla Planetarium ( http://goo.gl/qlsN8M ) situated in the southern part of the megacity. But not every town has one, and this is where Stellarium enters the scene. 

What's this thing called 'Stellaium'? 

Basically, Stellarium describes itself as "free open source planetarium for your computer. It shows a realistic sky in 3D, just like what you see with the naked eye, binoculars or a telescope". And that pretty much sums it up for the masses. It's essentially a simulation of the night sky, which you can customize by changing the place or time, the direction of observation, the type of visual grid (if you want any) etc. And most certainly, being open source, it's free to download, install, study, modify and share. 

It packs in latest and detailed information on more than 6,00,000 stars by default, and over 200 million stars can be added by enabling additional catalogues, and several additional interstellar objects as of now, and the list continues to grow each day. But if that's not enough for you, then there's always room for expanding the software using custom add-ons that can be written using the Qt scripting engine. This feature makes it possible for us to make small programs that can be executed by Stellarium itself, for the purpose of showing presentations, educational documentaries etc. 

Together with Celestia that I covered in a previous post (here: http://goo.gl/pi0fXC ), Stellarium forms a sophisticated astronomy software bundle. 

Features 

1. Software freedom: Pardon me for repeating this part like a mantra, being the open-source advocate that I am, but Stellarium is free, as in speech! You can freely download and distribute it as you see fit, being the good neighbour in the neighbourhood. In addition, the codebase of the software is available to study, modify and redistribute, as long as you follow the GPL. 

2. Lightweight: Although it looks really fancy, Stellarium consumes very little system resources, and can run smoothly on comparatively older systems. This gives us plenty of opportunities and ideas, to recycle that old computer sitting in the garage. 

The officially listed minimum system requirements show that even 256 MB of RAM and 150 of hard disk space can run Stellarium. 

3. Detailed and informative interface: The easy-to-use UI of Stellarium is packed with features. In addition to stars, nebulaes, planets, moons and even spacecrafts are simulated. 

4. Full customizability: The Settings allow you to tinker the configurations to your choice, helping you set the degree of detail you want, the amount of information visible by default, whether or not constellations are displayed as art, figures etc. 

5. HQ graphics: Well, the screenshots below do the talking, I guess. :) Eclipses are simulated nicely, and even the stars can be seen to be twinkling. The atmosphere is very realistic, and sunrise, sunsets, clouds etc are rendered beautifully. 

6. Telestope control: Other than all the software capabilities mentioned above, Stellarium serves as a master program for controlling digital telescopes attached to the computer, using an additional plug-in. A growing list of telescopes are being supported at present, and the list grows, as usual. 

Details can be found here: http://goo.gl/8lqLYN 

7. Extendibility: The default features of Stellarium are sufficient, but that doesn't restrict the user from programming additional content for the software. Scripts can be written using ECMAScript language, which Stellarium natively supports. But please ensure that you download the latest version of the software, because older versions aren't compatible with ECMAScript, relying instead on Stellarium's own scripting language, StratoScript. 

Even if you don't code yourself, there's a wealth of online plugins, some of them adding additional control or features, others unlocking additional details and objects. Even DSOs (Deep Space Objects) have been added to the program. 

In addition to all these, Stellarium supports graphical visualizations of supernovae, which are some of my favourites. The official site http://ift.tt/HEbSin mentions the features of stellarium in further detail. 

Experience 

Stellarium has a broad userbase - including scholars, researches, enthusiasts, academics and so on. Most certainly, a certain amount of astronomical know-how is expected from the userbase, but it's not mandatory. 

Having used Stellarium since 2009, I have personally used this software for aiding my studies, preparing projects and reports, simply delighting my friends and neighbours, and just satisfying my own curiosity. 

There's a well-maintained user manual if you're interested, which can be found on the official site. 

Availability 

Stellarium is available free of cost, for most major platforms out there. Linux users can install it using their reposiroties, while dedicated binaries are maintained for Windows and Mac users. 

Download: http://ift.tt/HEbSin (just select your system type, and the download will start). 

Conclusion 

Stellarium, as a complement to my beloved KDE Education Software bundle, is a fabulous and fantastic software. It's a testament to the glory and power of open source, and as such, it deserves placement inside every astronomy class. But then again, even students of humanities will find this software useful, in my opinion, because it is our birthright to know about the universe we inhabit. 

After all, that's the motto of science and philosophy, my twin teachers. 

Sources and acknowledgement 

http://ift.tt/HEbSin 

http://ift.tt/1iSjTPi

http://ift.tt/Q4IRhf

http://ift.tt/1xb7xcK

Image credits: Wikimedia, Stellarium.org and my Linux box. ;) Collaged, as usual, with #GIMP

#stellarium   #linux   #universe   #space   #freesoftware   #physics   #astronomy  




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Tuesday 18 November 2014

Hellenistic philosophies, what are thy actually? 

Hellenistic philosophies, what are thy actually? 
StuffThatMatters: Philosophy 

In this era of the constant evolution of new-age movements, ranging from Iskon in the east to Scientology in the west, people are genuinely confused. Yes, like the sheer diversity of smartphone apps waiting to do your bidding, there are whole belief systems out there dying to grab your attention. Every path screams "_This is the true path! Join us!"_, and maybe they do provide solace to some people, if not all of their followers. 

As rational organisms, we are always striving to make sense of the complexity that surrounds us.Why are we here, What's our purpose in this universe, and most importantly, How do we live properly and fruitfully, etc are the questions we humans (and our ancestors) have always asked ourselves. Strictly because of this, there developed a series of brilliant philosophies in Greece, following the death of Alexander the Great. 

What were those philosophies? 

These philosophies are usually regarded as Hellenistic philosophies, and they essentially began after the death of Alexander's tutor Aristotle, to be more precise. Before, philosophers like Plato, Aristotle and the pre-Socratics believed that philosophy should be used for making sense of the world around us - a tool for exploration of complex questions regarding the origin of the world, the nature of reality, and so on. But this all changed with Socrates, who shifted the focus of philosophy from metaphysics to ethics. 

According to Socrates, philosophy should instead deal with more practical, down-to-earth questions - such as how should we live fruitfully, how can we maximize our potential as human beings, how to have a good life, and so on. This is what served as the motivation for the post-Socratic philosophers of the Hellenistic age, nearly all of whom traced their beginnings to Socrates. 

Common Hellenistic philosophies 

Of the Hellenistic philosophies, four were the chief contestants for king of the hill title, each of which aimed to provide ataraxia (freedom from disturbances), alongside a good, meaningful and happy life. These were: 

I. Stoicism

Stoicism is derived from the word Stoa, which refers to the painted porch or colonnade, where the fathers of this philosophy used to gather. It was founded by Zeno of Citium, a merchant turned philosopher, who wanted to devise a practical philosophy of life that would answer the crucial questions. By far, Stoicism became the most important and successful of the Hellenistic philosophical schools, and became the de facto philosophy of the Roman intellectual majority, in the following years. 

The Stoic ideal is the Sage, a physicial embodiment of the Stoic philosophy, who is untouched by anger or grief, familiar with and yet isolated from anguish and anxiety, whose actions resound with the will of the cosmos. Notable Stoics included the early fathers of Stoicism, such as Zeno, Cleanthes and Chrysippus, while later Stoics are usually more familiar because their writings survive till date. Seneca, Rufus, Epictetus and emperor Aurelius of Rome form the paragon of Roman Stoicism. 

Salient teachings of Stoicism at a glance

1. Events and happenings don't affect us in any positive or negative way, rather we are affected by our judgements on them

2. Only our choices, thoughts and judgements are up to us. We can choose not to be bothered even in the face of adversities. 

3. The 'Self', in Stoicism, is our true nature. It is separate from the body, the senses and the thoughts. It is detached from all suffering, and is the impassive observer of everything. 

4. The only good in the world is virtue, the state of living in perfect accordance with nature. The nature here refers both to the cosmic intelligence (called Logos) as well as our individual natures. 

5. One is to nurture his/her mind constantly, and practice prosokeh or unfailing attention, to ensure that he/she doesn't stray away from the path of his/her philosophy. Stoicism is a living philosophy, and practical side of its teachings are as important as, if not more than, its theoretical side. 

II. Epicureanism

Epicureanism is a rival philosophy that grew out of the teachings of , a notable thinker of the Hellenistic age. Although people confuse the Epicureans with pleasure-seeking hedonists, the hedonism is the Epicureans is far from the usual frenzy of pleasure-mongering that we witness today. Instead, Epicurus teaches us to liv a very simple lifestyle, where we live contended with very little. 

Epicurus taught his disciples, and lived in harmony with them, in his house just outside Athens. The house had a garden attached, and thus the Epicurean school came to be known as The Garden

Points of Epicureanism 

1. Pleasure is the ultimate good, but there are two kinds of pleasure - kinetic pleasure (involving some sort of activity on our part) and static pleasure, which is just the absence of pain. Static pleasure is better than kinetic pleasure. 

2. Pain and pleasure are the two Masters, and the natural tendency of man and beasts alike, is to go towards pleasure and away from pain. 

3. All matter, including our bodies and souls, are made up of atoms. Therefore, there's no existence before birth, or following death. The atoms that make up our bodies, simply go and form something else after our deaths. Therefore, there's nothing to fear about death. 

4. Friendship, and living in a commune, is the ultimate way to enjoy pleasures. A simple diet of bread and water can suffice for Epicurean students, but according to them, he is poor who dines alone. 

5. Pain and pleasure are two sides of the same coin. What is the source of pleasure today, can cause us pain tomorrow. For example, something you love gives you pleasure, but its loss causes you pain. 

III. Scepticism

Scepticism or Skepticism   was developed by Pyrrho, who also served as its ultimate living embodiment. Sceptics were the ultimate doubters, who doubted their judgements, those of others, and even their own senses. However, weird as it may sound today, it was the way to peace for its followers. 

Scepticism teaches us that we can't be certain about anything, no matter how certain or reasonable it may seem. - as long as there's room for doubt. Therefore, all external disturbances are reasonable and apparent appearances at best. By shifting our attention from such potentially false projections of our senses (i.e false impressions), the Pyrrhonic skeptics argued that ataraxia can be attained. 

Scepticism at a glance 

1. There is no way we can be sure regarding the truth of the things that appear before us. It is up to us to make the judgement, but since senses are flawed, we can't reasonably conclude that they are real

2. Suspension of judgement, originally a Stoic development, has been incorporated into Scepticism. When we are unsure about the reality of anything, we should suspend our judgements on them. 

3. Complete knowledge of anything relies on flawless perception of the external circumstances, which is impossible because of our limited and flawed senses. Therefore, complete knowledge is unattainable. 

4. Even the thoughts are coloured by our perceptions, which can not be therefore relied upon. 

5. By shifting our attention from potential sources of worry to a thoughtless, relaxed state of the mind, is the key to freedom from disturbances. 

IV. Cynicism 

Cynicism, in my humble opinion, is the most radical and extreme of these philosophies. It advocates a state of constant practice of one's philosophy, but in addition, the philosophy of Cynicism advocates complete mental detachment from the societal norms, standards, customs etc

The name Cynicism is derived from the Greek work Kynikos, which literally refers to dogs. And in fact, the Cynics, like Crates and Diogenes, lived an existence that would be closer to that of the dogs than men. Diogenes famously resided inside a tub, masturbated in the open, ate scraps of food from the streets and even behaved like a dog when he was treated thus. Yet, Diogenes and Crates are regarded as the among the greatest of the Hellenistic philosophers. 

Cyncism at a glance 

1. Man is happier in his original state of nature, as opposed to in the artificial society created by man himself. 

2. The way to happiness is to isolate the mind from the dictations of the society. To live happily, one must actively learn to detach himself from the demands, norms and standards of the society. 

3. Man's true existence relies on very few things - sufficient food, a shelter and some garments. Everything else, be it jewels, fame or acceptance in the eyes of others, is additional, tne not worth the trouble. 

4. The wise man is he, who has mentally isolated himself from the society. However, this shouldn't refer to physical isolation, because the Cynic can fully well live inside the human society. 

5. The less you possess, the less you have to worry about. Thus, wealth and fame are the roots of much of our anxiety, worry and suffering. 

Other Hellenistic schools 

There were other Hellenistic schools of thought, such as Peripateticism (followers of Aristotle), Cyrenaicism (ultra-hedonists) etc but for most part, these schools were the ones that took the limelight. 

Besides, the modern day sees a lot of activity with regard to Stoicism, Epicureanism and Scepticism, especially. I strive to be a Stoic myself, to be honest with you, and there are a wealth of resources available online, regarding how to live happily and meaningfully with the use of these ancient bits of wisdom. 

In my humble opinion, man has realized that the standard, mainstream religions are not really the source of contentment or joy that they claim to be. That's why, we are once again switching back to the ancient philosophical wisdom. 

After all, philosophy is indeed the love of wisdom. :) 

Sources and acknowledgement 

1. A little history of philosophy (Warburton) 
2. Stoicism (John Sellar) 
3. Stoic Handbook (Newstoa) 
4. Philosophy for life and other dangerous situations (Evans)
5. A guide to a good life (William Irvine) 

Image credits: Wikimedia, collaged by me using #GIMP

#Stoicism   #Epicurus   #philosophyofhappiness   #philosophy   #peace  




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