Скачать презентацию Hans van Meegeren On Trial Hans van Скачать презентацию Hans van Meegeren On Trial Hans van

aa1d887278f05602d77387c1ae21fe4a.ppt

  • Количество слайдов: 43

Hans van Meegeren On Trial Hans van Meegeren On Trial

Hans van Meegeren • Born in Deventer, The Netherlands in 1889 • An architect Hans van Meegeren • Born in Deventer, The Netherlands in 1889 • An architect at first, but turns to art in 1913 when he wins first prize for a drawing of the interior of a church • He began to research for the forgery of a Vermeer in 1932 and had begun by 1936 • Arrested for conspiring with the enemy in 1945; his confession that he forged the paintings saved him from this charge • Found guilty of forgery; died in prison of a heart attack less than a year later

Why Forge? • Not very successful on his own • Bitterness toward the art Why Forge? • Not very successful on his own • Bitterness toward the art world because of this “The defendant’s character leads to sensitiveness to criticism, fed by • Mental condition a revenge complex which explains his anti-social tendencies (i. e. – crime)” • Financial gain – van der Horst Van Meegeren’s Best Known Work

Why Vermeer? • Fairly unknown during his lifetime • Small body of works • Why Vermeer? • Fairly unknown during his lifetime • Small body of works • Not an “heirloom” painter (vs. Rembrandt) Girl with a Pearl Earring

Christ in the House of Martha and Mary Christ in the House of Martha and Mary

Caravaggio- Supper at Emmaus Caravaggio- Supper at Emmaus

The Technique Christ at Emmaus The Technique Christ at Emmaus

Tests Woman in Blue Woman with a Lute Tests Woman in Blue Woman with a Lute

Pigments Ultramarine White Lead Yellow Ochre Green Earth Vermillion Indigo Pigments Ultramarine White Lead Yellow Ochre Green Earth Vermillion Indigo

Crack Lines Girl with a Pearl Earring Crack Lines Girl with a Pearl Earring

Crack Lines Christ at Emmaus Crack Lines Christ at Emmaus

Crack Lines Crack Lines

Phenolformaldehyde resin Phenolformaldehyde resin

Examining Christ Examining Christ

The Last Supper The Last Supper

I Have Summoned up the Depths I Have Summoned up the Depths

Girl with a Pearl Earring The Last Supper Girl with a Pearl Earring The Last Supper

Physics Radiograph Analysis Christ at Emmaus Washing of the Feet Physics Radiograph Analysis Christ at Emmaus Washing of the Feet

Sketch at Trial Radiograph Christ at Emmaus Sketch at Trial Radiograph Christ at Emmaus

Physics Radiograph Analysis Christ at Emmaus Washing of the Feet Physics Radiograph Analysis Christ at Emmaus Washing of the Feet

Radiograph Washing of the Feet Radiograph Washing of the Feet

XRF Analysis Examination of Christ’s Robe Woman Taken in Adultery XRF Analysis Examination of Christ’s Robe Woman Taken in Adultery

Na 8 -10 Al 6 Si 6 O 24 S 2 -4 Ultramarine Na 8 -10 Al 6 Si 6 O 24 S 2 -4 Ultramarine

Characteristic X-Ray Transitions Ex = (Z-1)2 · 13. 6 [e. V] · (1 - Characteristic X-Ray Transitions Ex = (Z-1)2 · 13. 6 [e. V] · (1 - 1/ni 2) Na = 1. 02 ke. V Al = 1. 47 ke. V Si = 1. 72 ke. V S = 2. 295 ke. V

Counts Na Al Si S Counts Na Al Si S

Counts Na ? Al Al Si S Counts Na ? Al Al Si S

Na 8 -10 Al 6 Si 6 O 24 S 2 -4 Ultramarine Co. Na 8 -10 Al 6 Si 6 O 24 S 2 -4 Ultramarine Co. O · Al 2 O 3 Cobalt Blue

Ex = (Z-1)2 · 13. 6 [e. V] · (1 - 1/ni 2) Co Ex = (Z-1)2 · 13. 6 [e. V] · (1 - 1/ni 2) Co = 6. 895 ke. V !

Counts Na Co Al Al Si S Counts Na Co Al Al Si S

Cobalt Blue • Discovered in 1802 by Thénard • Vermeer died in 1675 Cobalt Blue • Discovered in 1802 by Thénard • Vermeer died in 1675

XRF Analysis Woman Taken in Adultery XRF Analysis Woman Taken in Adultery

Physics 2 – Van Meegeren 0 Iron Smelting White Lead Physics 2 – Van Meegeren 0 Iron Smelting White Lead

Iron Smelting Ra-226 Pb-210 Ore Slag White Lead Iron Smelting Ra-226 Pb-210 Ore Slag White Lead

Half-life Pb- 210: 22 years Half-Life Ra- 226: 1600 years Half-life Pb- 210: 22 years Half-Life Ra- 226: 1600 years

Sample Calculations Measuring activity over a periods of 300 years (the time when Vermeer Sample Calculations Measuring activity over a periods of 300 years (the time when Vermeer would have smelted) and 50 years (the time when Van Meegeren would have smelted) Ra- 226: constant- k • Since both these times are relatively short compared to the half-life of radium, the activity will remain approximately constant

Sample Calculations Measuring activity over a periods of 50 years (the time when Van Sample Calculations Measuring activity over a periods of 50 years (the time when Van Meegeren would have smelted) and 300 years (the time when Vermeer would have smelted) Pb-110: 1 g sample @ 50 years A = λN N 0 (Pb-110) = 5. 48 x 1021 atoms N (Pb-110) = 5. 13 x 1020 atoms A (Pb-110) = 5. 25 x 1011 decays/second

Sample Calculations Measuring activity over a periods of 50 years (the time when Van Sample Calculations Measuring activity over a periods of 50 years (the time when Van Meegeren would have smelted) and 300 years (the time when Vermeer would have smelted) Pb-110: 1 g sample @ 300 years A = λN N 0 (Pb-110) = 5. 48 x 1021 atoms N (Pb-110) = 4. 3 x 1017 atoms A (Pb-110) = 3. 15 x 107 decays/second

Pb-110/ Ra-226 Ratio 3. 15 x 107 decays/second k @ 300 years 5. 25 Pb-110/ Ra-226 Ratio 3. 15 x 107 decays/second k @ 300 years 5. 25 x 1011 decays/second k @ 50 years 60% difference!

Hans van Meegeren On Trial Hans van Meegeren On Trial