The case of the vanishing da Vincitags: Leonardo da Vinci
One of Leonardo da Vinci's masterpieces, drawn in red chalk on paper during the early 1500s and widely believed to be a self-portrait, is in extremely poor condition. Centuries of exposure to humid storage conditions or a closed environment has led to widespread and localized yellowing and browning of the paper, which is reducing the contrast between the colors of chalk and paper and substantially diminishing the visibility of the drawing.
A group of researchers from Italy and Poland with expertise in paper degradation mechanisms was tasked with determining whether the degradation process has now slowed with appropriate conservation conditions—or if the aging process is continuing at an unacceptable rate.
comments powered by Disqus
- New museum in Poland -- the grandest space created since 1989 -- tells the story of the Jews
- Lewinsky mistreated by authorities in investigation of Clinton, report says
- Scientists Say Proof Of Jack The Ripper's Identity Is Fatally Flawed
- Memorial for black Revolutionary War soldiers finds spot on Mall after 30 years
- Sherlock Holmes star to feature in a new movie about Alan Turning
- How Laurel Thatcher Ulrich caught up with the past
- Postal Workers Take on Harvard President, historian Drew Faust
- Symposium held in honor of John D’Emilio
- Thousands of Historic Archives from British Asylums to Go Online
- American Studies Association boycott of Israel: Conservatives say it’s weakening