Teaching laboratories in science centres as promoters of uptodate research On Heiligenschein, Sylvan

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Teaching laboratories in science centres as
promoters of up-to-date research On
Heiligenschein, Sylvanshine and Related Phenomena

• Zvi Paltiel
• 01-06-2007, 1630
• Ecsite annual Conference

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Content

• Heiligenschein
• Sylvanshine
• Some related phenomena

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Heiligenschein

• Benvenuto Cellini 1500-1571 Florence
• Strange
• Mysterious
• Talented sculpture
• Artist
• Professional soldier
• Hooligan
• Trouble maker
• Author
• Murderer

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Cosimo ganymede
-1545-7Benvenuto Cellini
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saltcellar of Francis I - 1540 Cellini
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Heiligenschein

• Early morning hour
• dew on the lawn

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Typically
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Preferably backward scattering
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Sylvanshine

• Alistair B. Fraser - 1994
• Late at night
• Dew on leaves (needles) silvery-grey, bluish
• blue spruce

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Not only needle trees!dusty miller,seneciocin
eraria
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Wide green leaves too!Nasturtium, Tropaelum
Majus
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Eyeshine
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• Sylvanshine
• Night
• Dew
• Backward scattering
• Wide angle (seen by many)
• Cuticle cuticula
• Newly discovered (1994)
• English name

• Heiligenschein
• Day
• Dew
• Backward scattering
• Small angle (around the spectator shadow only)
• Cuticle cuticula
• Discovered long ago (16 century)
• German name