All reactions

Most of the glass in Saint Chapelle, 4 Boulevard du Palais, Paris 4e, is original and dates back to 1246-1248. (That is more than 760 years ago!)

Most of the glass in Saint Chapelle, 4 Boulevard du Palais, Paris 4e, is original and dates back to 1246-1248. (That is more than 760 years ago!)

The periodic table of elements

The periodic table of elements

Flow?!

Flow?!

Experiment with an 0,8 cm glass tube, 140 cm long: Can glass flow at room temperature?

Experiment with an 0,8 cm glass tube, 140 cm long: Can glass flow at room temperature?

Mounted glass prism by Anna Carlgren

Mounted glass prism by Anna Carlgren

Light refracted by a cut and polished glass prism. Prism: 8x4x3cm. Spectrum on the wall: 80x20cm. The background wall is white in reality. The light is extremely bright. The camera overcompensates.

Light refracted by a cut and polished glass prism. Prism: 8x4x3cm. Spectrum on the wall: 80x20cm. The background wall is white in reality. The light is extremely bright. The camera overcompensates.

A prism integrated in a window across the room throws a rainbow when the sun is shining. (Champagne glasses by Ulla Forsell)

A prism integrated in a window across the room throws a rainbow when the sun is shining. (Champagne glasses by Ulla Forsell)

I can see it, but where is it?

I can see it, but where is it?

Cut Iceland Spar by Anna Carlgren (crystallized calcium carbonate gives double refraction)

Cut Iceland Spar by Anna Carlgren (crystallized calcium carbonate gives double refraction)

You are my rosebud II by Anna Carlgren (opaque white, porcelain-like glass)

You are my rosebud II by Anna Carlgren (opaque white, porcelain-like glass)

Footed, scrambled periscope by Anna Carlgren (prisms from a periscope).

Footed, scrambled periscope by Anna Carlgren (prisms from a periscope).

Du är min ögonsten/Apple of my eye by Anna Carlgren (including a human eye prothesis)

Du är min ögonsten/Apple of my eye by Anna Carlgren (including a human eye prothesis)

Opalin by Anna Carlgren (a study of how different types of glass influence each other when combined)

Opalin by Anna Carlgren (a study of how different types of glass influence each other when combined)

Red rosett by Anna Carlgren (cleaved optical glass)

Red rosett by Anna Carlgren (cleaved optical glass)

Time-less is more by Anna Carlgren (Roman foot, one long glass thread forms the foot)

Time-less is more by Anna Carlgren (Roman foot, one long glass thread forms the foot)

Verre à la façon de Venise by Anna Carlgren (Venetian techniques in stem and foot) STOLEN-IF FOUND, DO NOT BUY OR RESELL

Verre à la façon de Venise by Anna Carlgren (Venetian techniques in stem and foot) STOLEN-IF FOUND, DO NOT BUY OR RESELL

Atomic green by Anna Carlgren (uv-sensitive glass, uranium oxide is colouring agent)

Atomic green by Anna Carlgren (uv-sensitive glass, uranium oxide is colouring agent)

Portrait of my daughter, or You are my rose bud by Anna Carlgren (rose with gold leaf applied hot, stem painted with gold luster and fired)

Portrait of my daughter, or You are my rose bud by Anna Carlgren (rose with gold leaf applied hot, stem painted with gold luster and fired)

Winged sculpture by Anna Carlgren (the prism allows you see around the corner, a principle used in binoculars to bring the image from the view pieces to the eye)

Winged sculpture by Anna Carlgren (the prism allows you see around the corner, a principle used in binoculars to bring the image from the view pieces to the eye)

Kaleidoscope by Anna Carlgren, cut in a window made of safety glass, 100x200 cm.

Kaleidoscope by Anna Carlgren, cut in a window made of safety glass, 100x200 cm.

Kaleidoscope by Anna Carlgren, 50x50 cm. Photo: Anders Qwarnström

Kaleidoscope by Anna Carlgren, 50x50 cm. Photo: Anders Qwarnström