Posts Tagged ‘sun’

Enjoy the Sunlight

Friday, April 16th, 2010

I often joke about how as a lighting designer I never actually get to see the sun because I am stuck inside theaters all day long. While this is not wholly accurate there is a degree of truth to it that is in many ways less than ideal. While many to most of my designs are not attempts at naturalistic recreations of daylight, even the abstract work is grounded in an understanding of natural light.

Before I got into lighting design I was an avid photographer. This was back in the ancient days of film photography where, rather than sitting in front of a computer screen, the photographer would spend hours in a darkroom manipulating the light that passed through a negative to create an image on paper. I remember spending an entire weekend teaching myself split filter processing in order to make a not so good negative into a rather stellar print, because I loved the composition so much.

My point in mentioning this is that I spent a lot of time, energy, and attention studying light before I ever started manipulating it directly on stage. This ties in to the idea I discussed Monday in my post On Visual Thinking. To be a visual artist one must first learn to see. We must train our mind to think with our eyes and not just with words. We must be able to take in the visual world and analyze it for form, shadow, contrast, composition and the like. Once we have the ability to directly analyze the visual world, then we can begin to make art.

I see a lot of designers get caught up in the technology of lighting, because it is really cool stuff, to the detriment of the art of lighting. Certainly there is a time and place for high tech, but if one does not understand the medium itself, light, then all the technology in the world will not create a work of beauty. Neither a fancy drafting program nor a fancy lighting console will make you a better designer.

I see a similar problem with photographers. I brought a friend in to shoot a recent show of mine because I was less than thrilled with the company’s house photographer. I overheard the company photographer say something like “those will be good photographs, he has a really nice camera.” And right there I knew why the house photographer was not very good. He mistook the technology for the art. A good photographer can make beautiful work from a polaroid if need be. The art does not come from the machine.

In lighting we can get so caught up with Eos and Source-4 and Vectorworks and Lightwright that we forget what we are doing is manipulating light. Some of the most interesting work I have done came from limitations like a dozen dimmers and a small hand full of plugstrips to control fluorescents and A-lamps.

Even color, a subject I love, is secondary to effective lighting. When, as a designer, you have a clear understanding of how light moves and how light is perceived, you can do amazing things with very little. It also means that when you have a quarter million dollar lighting package you can really push it to make some truly amazing and spectacular creations.

But before learning about how to program a lighting console, before memorizing gel books and gobo catalogues, before reading every lighting textbook theory, before knowing the intricate details of every new automated lighting fixture on the market, you need to step outside and enjoy the sunlight. Get your eyes off the stage and onto the work of the most amazing lighting designer you will ever encounter. Nature. Observe the difference between 4:30 in the afternoon during the summer and during the winter. What are the colors of a sunrise in the plains vs. on the coast? How do sunsets differ in New York and Los Angeles? Does the shade of a forest differ from the shade on a porch?

Just as painters use real models to create portraits, so too must lighting designers have a real understanding of light in order to make truly powerful creations. If your options are limited, perhaps you can’t travel, or work or school take up too much of your daytime, then explore light in books. Discover the world of black and white photography or classical European painting. You can learn almost as much about light and shadow from Paul Strand or Caravaggio as you can by stepping outside for a few hours. But you will need to step outside and see for yourself to truly develop your own voice.

Seeing for yourself will lead you to create your own visual language. You will start learning words and phrases. You will decipher your own grammar and syntax. As you begin to look with your own eyes and analyze the light in the world around you, your eye will develop and become increasingly subtle in its distinctions and degrees of understanding. You will see more detail. And every day you will enjoy the sunlight more.

key 23

Friday, March 28th, 2008

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Solar Cycle 23, how can we miss you if you won’t go away? Barely three months after forecasters announced the beginning of new Solar Cycle 24, old Solar Cycle 23 has returned. Actually, it never left.

“This week, three big sunspots appeared and they are all old cycle spots,” says NASA solar physicist David Hathaway. “We know this because of their magnetic polarity.”

Earlier today, the Solar and Heliospheric Observatory (SOHO) made a magnetic map of the sun.

It shows the north and south magnetic poles of the three sunspots. All are oriented according to the patterns of Solar Cycle 23. Cycle 24 spots would be reversed.

What’s going on? Hathaway explains: “We have two solar cycles in progress at the same time. Solar Cycle 24 has begun (the first new-cycle spot appeared in January 2008), but Solar Cycle 23 has not ended.”

Strange as it sounds, this is perfectly normal. Around the time of solar minimum–i.e., now–old-cycle spots and new-cycle spots frequently intermingle. Eventually Cycle 23 will fade to zero, giving way in full to Solar Cycle 24, but not yet.

Meanwhile, on March 25th, sunspot 989, the smallest of the three sunspots, unleashed an M2-class solar flare. Flares are measured on a “Richter scale” ranging from A-class (puny) to X-class (powerful). M-class flares are of medium intensity. This one hurled a coronal mass ejection or “CME” into space, but the billion-ton cloud missed Earth.

[Snip]

The real significance of these spots is what they say about the solar cycle, says Hathaway. “Solar Cycle 24 has begun, but we won’t be through solar minimum until the number of Cycle 24 spots rises above the declining number of Cycle 23 spots.” Based on this latest spate of “old” activity, he thinks the next Solar Max probably won’t arrive until 2012.

Sonic Solar Flares

Sunday, April 22nd, 2007

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Immense coils of hot, electrified gas in the Sun’s atmosphere behave like a musical instrument, scientists say.

These “coronal loops” carry acoustic waves in much the same way that sound is carried through a pipe organ.

Solar explosions called micro-flares generate sound booms which are then propagated along the coronal loops.

“The effect is much like plucking a guitar string,” Professor Robert von Fay-Siebenbuergen told BBC News at the National Astronomy Meeting in Preston.

Cosmic Lighting Effects

Wednesday, March 7th, 2007

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The constant bombardment of billions of tiny particles from the Sun is shaping the Solar System, studies have shown.

As the fine solar shower rains down on objects, such as asteroids, it can steadily alter their orbit and spin.

Although the mechanism that describes the effect has been known for many years, it has never been seen.

Now, separate studies published in the journals Nature and Science have observed and measured the tiny stellar shoves on two spinning asteroids.

They reveal that both are gradually starting to spin faster and faster, which could eventually create new Solar System landmarks.

“If we can spin up an asteroid so fast, there’s a really good chance that these things will fly apart,” said Dr Stephen Lowry, a planetary astronomer at Queen’s University Belfast and one of the authors of the Science paper.

In this case, the fragments could form a binary asteroid where two objects orbit each other, he said.

“This is a phenomenon that gradually affects the evolution of the Solar System,” said Dr Mikko Kaasalainen of the University of Helsinki, who is an author of the Nature paper.

[SNIP]

“We must include this radiation effect because it can transport asteroids between different orbital states and effect their rotation,” he said.

“We now know the Solar System doesn’t just evolve due to gravitation.”

Dr Lowry also believes it is a key finding for looking back through history.

“Asteroids are the leftovers from the start of the Solar System, so by understanding these asteroids, we may get an idea of what the Solar System was like before the planets formed,” he said.

“I don’t want to call it a dawn of a new age of astronomical sciences but it will certainly spark a whole range of new studies.”

Here Comes the Sun

Friday, March 2nd, 2007

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The first solar observatory in the Americas may have been uncovered in coastal Peru. The ceremonial site provides evidence of sophisticated ‘cults of the Sun’ operating in South America as early as 2300 years ago.

Other ancient structures around the world – such as Stonehenge, which is estimated to be 5000 years old – are aligned with the rising and setting of the Sun on certain days called the solstices. These occur twice a year, around 22 June and 22 December, when the Sun appears to reach its highest point above or below the equator.

Previously, archaeologists had uncovered 4000-year-old gourd fragments in Peru showing images of a “staff god” with rays emanating from its head, perhaps like the Sun (see America’s oldest religious icon revealed).

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Within Chankillo, 13 regularly spaced rectangular towers run the length of a 300-metre ridge like a spine, creating an artificial horizon from some vantage points.

On either side of the ridge are the remains of a western observatory and, lesser so, an eastern observatory, which scientists say were used to watch the Sun rise or set between those towers. On the summer solstice, the Sun rose between Tower 1 and a nearby mountain, Cerro Mucho Malo, and on the winter solstice, the Sun rose around Tower 13.

The Sun appeared for only one or two days in each gap between towers, taking six months to go from one end of the structure to the other. So it is possible the different towers were meant to divide the year into regular intervals lasting about 10 days – the time it takes for sunrises to occur between adjacent towers in the central part of the structure.


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