Wednesday, April 2, 2008

Another discovery

Big and small, near and far, old and new; the range and diversity of discovery continually amazes me.

Secret 'dino bugs' revealed

It is like a magic trick - at first there is nothing and then it appears: a tiny insect unseen by any eye for 100 million years.

We are with Paul Tafforeau who is scrolling through images on his computer.

His pictures have been produced by a colossal X-ray machine that can illuminate the insides of small lumps of clouded amber (fossil tree resin).

As he plays with the settings, what starts out as grey nothingness suddenly becomes the unmistakable outline of a "wee beastie".

Who knows? This little creature could once have buzzed a dinosaur. It's certainly the right age.

Tafforeau is a palaeontologist. But whilst others of his profession will be in the dirt with a rock hammer and trowel, you'll find him at the end of one of the most remarkable "cameras" in the world.

The European Synchrotron Radiation Facility (ESRF) in Grenoble, France, produces an intense, high-energy light that can pierce just about any material, revealing its inner structure.

Tafforeau and colleague Malvina Lak have put kilos of opaque amber chunks in the way of this beam and have found a treasure trove of ancient organisms.


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