Monday, May 25, 2009


In our everyday myriad insignificant living day in and day out, maybe we have stopped asking some basic questions we use to intrigue ourselves regularly “when we were young”. It is often reflected when I go for my fortnightly visit to my barber – I ask him incessantly “am I going bald” – he normally reverts back asking “is your father bald” – my answer is a blank stare and rhetoric pause and the emphatic NO soon follows suit.

If I am so obsessed with asking if I were going bald, why not excite myself with the most common desert view I see regularly and try to pique myself to find out why it happens. My uncle use to give me money for buying books – the first instalment of money put together and I bought a series called “TELL ME WHY” – and later argue endlessly with my childhood and still friends Bedanta lovingly called “bedu” on various unnatural phenomenon and common unscientific Harry Houdini stuff.

It took Ani while swinging in the back seats of my frowning Mitshubishi Lancer to look out the window and ask all of us “What is that phenomenon called”, we instantly chorus voiced “it’s a MIRAGE”, on being prodded why – I simply answered back “it’s an optical illusion” and then came the million dollar question “WHY DOES IT HAPPEN”

I simply couldn’t reach out to my “TELL ME WHY” collection in the old dusted library lying near my low lying bed in my bedroom few oceans and mighty rivers away in India (Assam – Duliajan). They have been long forgotten and married to fine dust.

Shubha and her father too tried with similar results. So, here I am going back to finding out WHAT IS AN MIRAGE? And here’s what I found out – this time googling away to glory.

Wiki says: “A mirage is a naturally occurring optical phenomenon in which light rays are bent to produce a displaced image of distant objects or the sky. In contrast to a hallucination, a mirage is a real optical phenomenon which can be captured on camera, since light rays actually are refracted to form the false image at the observer's location”
You see it not only in desert but also hot summer days in your lane as well, false impression of water reflecting from the surface – as scientist and ignorant observers say, it is also seen in Polar Regions albeit with different effect. We will come into that later, but first a little primer in physics you ignorant adult communion!!

“Mirage occurs due to total internal reflection of light. When the sun is high in the sky, the sand gets heated first and then the layers of air above it. The rays from the trees travel from an optically denser air layer to a rarer layer and hence bend away from the normal. This bending continues and a stage is reached where the angle of incidence becomes greater than the critical angle and total internal reflection takes place”

Need any illustrated diagrams we used to draw with a scale and pencil rubbing our running noses:
Wiki adds: “The model given above explains the cause of the inferior mirage, called "inferior" because the image seen is under the real object. The real object is the (blue) sky or any distant object in that direction, meaning we see a bright bluish patch on the ground in the distance. For exhausted travelers in the desert it appears as a lake of water. On tarmac roads it may seem that water or even oil has been spilled. This is called a "desert mirage" or "highway mirage".

Now since you know why it happens in desert and the whole funda about warm air and cold air – what really happens in roads while we drive something which Ani noticed!! How come water appears in the distant highway?

A highway mirage is an inferior mirage which can be seen very commonly on roadways by day or by night. The hot-road mirage is usually most noticeable on hot sunny days.

Warm air is less dense than cool air, and the variation between the hot air at the surface of the road and the denser cool air above it creates a gradient in the refractive index of the air. Light from the sky at a shallow angle to the road is refracted by the index gradient, making it appear as if the sky is reflected by the road's surface. The result looks to the human mind like a pool of water on the road, since water also reflects the sky

Now let’s talk about the other phenomenon – also called superior mirage often seen in polar “chill” regions.

Going back to wiki: “Superior mirages are most common in polar regions, especially over large sheets of ice with a uniform low temperature. They also occur at more moderate latitudes, however, although in that case they are weaker and not so smooth. For example a distant shoreline may be made towering, looking higher (and thus perhaps closer) than it is in reality, but because of the turbulences there seem to be dancing spikes, towers and so forth. This type of mirage is also called the Fata Morgana or, in Icelandic, halgerndingar.”

Now you know why MIRAGE happens – Ani this goes for you for bringing back the TELL ME WHY avatar in me long known to be dead!!

Saturday, May 23, 2009


Role of a Documentary DirectorThe role of a documentary director varies considerably from project to project, and from filmmaker to filmmaker. Great documentaries have had origins in the dark depths of a research centre; others haves been born out of curiosity in street graffiti, and still others are out of decades-old home movie video-diaries. There is very little that is similar in how two directors approach the same topic, or even how they’d define legitimate, film-worthy subject matter.

Despite varied approaches, the relationship a director forms with a film’s subject is critical. As cinema verite director Chris Hegedus describes it -

“I think you can’t help but want to protect your characters in the film, especially in situations where you become friends with them, which we were in There were so many different aspects during the process of making that film were difficult for me as a filmmaker. One was that in filming the dissolving of a relationship I was party to certain information that I felt like I wanted to pass on to the other persons, and tell them. But I couldn’t quite do it, because even as filmmakers we didn’t really know the whole story. So you just have to let what happens. In front of you! And then when you’re editing it, you also want to be protective of them. You don’t want to make somebody seem like they’re jerky, or being villainous, or being a victim, because everybody in their lives is all those things at one point. There’s a time that you’re a victim, there’s a time that you’re a villain. As a filmmaker, its very complicated. The hardest thing is when you show the film to the people in it, and they see themselves”

Director Erol Morris – whose work in many ways stands a critique of cinema verite filmmaking – sees himself as an investigator exploring subjectivity, exploring “how people see the world, their mental landscape, their own private ways of seeing themselves and the world around them” Rather than follow his subjects throughout their days, capturing their mundane activities and waiting for a moment of natural drama, Morris brings his characters into a studio where he controls the scope of the conversation. Peering at them, the director with his image projected in front of them through the Interrotron, a dual TelePrompTer contraption he invented, Morris uses an assertive interview style to encourage his participants to tell their story in what he calls “true first persona” cinema. His stylized editing reveals exceptional aspects of the subject’s story, but his aspects of the subject’s story, his documentaries are heavily directed. Morris's films possess a controlled editorial voice, draped in dramatic musical scores and lavish cinematography. Through fictional re-enactments, moviegoers are given Morris’s interpretation of what the interviewee’s stories might look like.
A note on objectivity
In the first day of film class everybody ought to just completely forget about objectivity. God is objective, and she is not telling us. So each form of film is an attempt to organise the chaos that is life, the universe. I think we come to a kind of shorthand that fiction is narrative and untrue, and that documentaries are true and objective. And that’s not true. We know from literature that some of the greatest truths emerge from fiction, and that it is possible for a fiction film to carry incredible amount of truths.

I work in a medium – documentary – that’s interested in fact-based dramas, fact based narrative, and that’s a huge difference. I think what makes the documentary a kind of lesser animal, in the scale of things, is that for too long it was a didactic, essayistic thing, an expression of someone else’s already-arrived-at ends, and not interested in the narrative.

Follow ideaminefield

Design by Free WordPress Themes | Bloggerized by Lasantha - Premium Blogger Themes | Best Web Hosting Coupons