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Portrait of a young woman, (detail), Isaac Luttichuys.

Portrait of a young woman, (detail), Isaac Luttichuys.

(Source: marieantoinete, via serpentheart)

Photoset

labphoto:

Not from the lab, but this is also chemistry: crystalline glaze vase!

This special type glaze crystallizes at a specific temperature while the vase is burned. How does the work? The glaze contains a lot zinc oxide, and a few secret component what melts at 1200 °C. While the vase is in the furnace it is cooled slowly (under hours) from 1200 °C to 1150 °C what lets the glaze to crystallize, just in a beaker in the lab. If the glaze is cooled down too fast, small crystals or even no crystals form, or if its cooled down under days, really large, even cm long crystals could form on the surface of the vase.  

Why is this so interesting? Every glaze what is made via this method is unique and unrepeatable, since its impossible to grow the same amount and the same shape of crystals on its surface.

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mutebat:

Day 7. First day of class. There’s only four people, but that’s the perfect number for something like this. We learned about the differences in canvases and painting systems for 16th versus 17th/18th century madonnas and how frescoes are removed from their walls for treatment.

mutebat:

Day 7. First day of class. There’s only four people, but that’s the perfect number for something like this. We learned about the differences in canvases and painting systems for 16th versus 17th/18th century madonnas and how frescoes are removed from their walls for treatment.

(via themindofaconservator)

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20aliens:

Restoration room, St. Petersburgby Andrew Moore

20aliens:

Restoration room, St. Petersburg
by Andrew Moore

(via themindofaconservator)

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themindofaconservator:

Today at work…
Cleaning a very long whale bone.

themindofaconservator:

Today at work…

Cleaning a very long whale bone.

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5daysofpreservation:

The Math Checks Out!
At Northwestern University, this chalkboard recently came to the lab from the University Archives. It comes from the office of a professor recently awarded a Nobel Prize. The Special Collections Conservator is currently researching ways to consolidate the chalk in order to preserve the economics equation for posterity.

5daysofpreservation:

The Math Checks Out!

At Northwestern University, this chalkboard recently came to the lab from the University Archives. It comes from the office of a professor recently awarded a Nobel Prize. The Special Collections Conservator is currently researching ways to consolidate the chalk in order to preserve the economics equation for posterity.

(via themindofaconservator)

Photoset

PLEASE STAIN TELL ME WHAT TO DO WITH YOU I AM ASKING NICELY

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conservethis:

When every solvent I try removes the tape adhesive residue but also EVERYTHING ELSE on the object.
(Currently trying to remove tape adhesive residue from a floppy plastic sign.)

conservethis:

When every solvent I try removes the tape adhesive residue but also EVERYTHING ELSE on the object.

(Currently trying to remove tape adhesive residue from a floppy plastic sign.)

(via themindofaconservator)

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The feeling you get just as you realize you put someone else’s swab stick in your mouth….

varnishisapowerfulliquid:

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cleaning with ‘natural enzymes’