Perhaps Nothing Is Meant To Last Forever

I suppose I’ve never actually thought about it until now, but I think I’ve been fooled into a subconscious assumption that modern science and civilized conscience can indefinitely protect whatever fragments of ancient life remain to us. But learning of yet another World Heritage Site in peril makes me realize that “indefinitely” is an unrealistically long time.

It’s been known since 2006 that melanin, a black pigment produced by a bacteria, has been staining the walls and permanently affecting the 17,000 year old cave paintings of Lascaux, in France.

According to CultureGrrl, Lascaux's administrators have been implementing an aggressive treatment they call "decolorization" to remove the melanin by physically scraping the affected areas. The scraping not only removes the melanin but also layers of the walls' surface, whether painted or unpainted, thus irrevocably altering one of mankind's most famous works of art.

While French officials assert the cave is close to reaching a microbiological equilibrium, members of the International Committee for the Preservation of Lascaux strongly disagree. They claim that just the opposite is happening. They can't both be right. We can only hope that this is not a case in which the cure is worse than the disease.

An incalculable amount of human creativity has been eradicated by war, arrogance and simple unmindfulness – realities of the human condition. But there’s something particularly sad about the destruction resulting from misguided preservation efforts. Our documentary use of today’s photographic technologies may be some consolation for generations to come who at least will have some visual evidence of what’s been lost. But they may well be saddened by the fact that they have the technology that could save what we couldn’t.

Going Beneath The Surface

X-ray technology is used in the art world to see beneath the surface of paintings, and under plaster on walls, to document the artist's process and to find lost works. This is done despite the fact that x-rays can damage the organic pigments ... I presume, because the learning is deemed to outweigh the risks.

According to the Discovery Channel, however, there’s a benign form of electromagnetic radiation that is beginning to be used in the art world. Most of us have never heard of T-rays (terahertz rays), although the technology has been in use by electrical engineers for decades. The new technique should be able to detect particular pigments in old artwork that other types of scans miss -- such as sanguine, a reddish-brown color that Flemish painters often used.

Right now T-ray images are only generated in black and white, but scientists are working on developing the technology to produce color images. From what I understand there are just two T-ray machines currently being used for scanning art, and only one of them is portable. Researchers at the University of Michigan are planning on using it to find murals hidden beneath layers of plaster in centuries-old churches in France.

I'd wager that we're going to be hearing alot more about T-ray scanning projects in coming years.