Samples with Rotatable Images (1485)

These are samples that have QuickTimeVR 3D and JavaScript stereoscopic rotatable images associated with one or more samples. You can download the latest version of QuickTime for Macintosh or Windows from http://www.apple.com/quicktime/download. To make these files I first used a "VR Micro Studio", which consisted of an up-side-down panorama head, a three-axis adjustable tripod mount, and a 1000W halogen light. The camera was covered with tinfoil to keep it from burning up under the hot light. After making about 130 3D images (almost 10,000 individual photographs) I got a fiber optic illumination system and my studio looked like this. It was much more flexible, and doesn't get hot at all. Light really is the key to photographing small things: You need a lot of it close in. Then after another 50 or so I finally got an automatic turntable. Commercial stepper-motor systems are available, but they are very expensive and I've found they all vibrate, which disturbs delicate arrangements. I instead use a cheap surplus turntable with a 5 revolution per hour timing motor, combined with a time lapse control set to take a picture every 10 seconds. That works out to 72 images in one 12-minute revolution. If you do the math, the motion blur is less than one pixel even at a 1/15 second exposure, so a stepper motor that starts and stops is really not necessary. That was good, but in preparing for a Discovery Channel film project, I needed to upgrade to 360 steps instead of 72, and I wanted to be able to handle all sizes from nearly microscopic to a couple hundred pounds. The solution was a pair of custom-machined (by me, of course) turntables, cast iron mounts and a slate base for everything (because of vibrations, which are a big problem for samples less than about 5mm across). In late 2004 the studio looks like this.

Click any element tile below to get the full entry for that element, or click on the sample picture to go directly to the description of that sample.

Text and images Copyright (c) 2010 by Theodore W. Gray.
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Chromium
Chromium Broken sputtering target
3D3D
Broken sputtering target.
Source: Ethan Currens
Contributor: Ethan Currens
Acquired: 21 March, 2008
Text Updated: 21 March, 2008
Price: Anonymous
Size: 1.5"
Purity: 99.99%
Chromium
Chromium Partially melted plug
3D3D
Partially melted plug.
Source: Ethan Currens
Contributor: Ethan Currens
Acquired: 30 April, 2008
Text Updated: 30 April, 2008
Price: Anonymous
Size: 1"
Purity: 99.9%
Chromium
Chromium Sputtering target
3D3D
Sputtering target.
Source: Ethan Currens
Contributor: Ethan Currens
Acquired: 19 November, 2008
Text Updated: 21 November, 2008
Price: Anonymous
Size: 2"
Purity: 99.9%
Chromium
Chromium Vapor deposited crystals
3D3D
Vapor deposited crystals.
Source: Ethan Currens
Contributor: Ethan Currens
Acquired: 19 November, 2008
Text Updated: 21 November, 2008
Price: Anonymous
Size: 1"
Purity: 99.99%
Chromium
Chromium Chromium oxide green
3D3D
Chromium oxide green.
Source: Pottery supplier
Contributor: Theodore Gray
Acquired: 28 February, 2009
Text Updated: 1 March, 2009
Price: $10
Size: 2"
Purity: 68%
Chromium
Chromium Chromium broken crystal
3D3D
Chromium broken crystal.
Source: Ethan Currens
Contributor: Theodore Gray
Acquired: 27 December, 2008
Text Updated: 1 March, 2009
Price: Anonymous
Size: 0.1"
Purity: >99.99%
Chromium
Chromium Cheap stainless steel
3D3D
Cheap stainless steel.
Source: Walmart
Contributor: Theodore Gray
Acquired: 11 March, 2009
Text Updated: 21 April, 2009
Price: $0.50
Size: 6"
Purity: 20%
Chromium
Chromium Car bling
3D3D
Car bling.
Source: Farm & Fleet
Contributor: Theodore Gray
Acquired: 21 April, 2009
Text Updated: 21 April, 2009
Price: $20
Size: 7"
Purity: <1%
Chromium
Chromium Chromite from Jensan Set
3D3D
Chromite from Jensan Set.
Source: Jensan Scientifics
Contributor: Jensan Scientifics
Acquired: 17 March, 2003
Price: Donated
Size: 1"
Composition: FeCr2O4
Chromium
Chromium Chrome Vanadium Wrench
3D3D
Chrome Vanadium Wrench.
Source: Hardware Store
Contributor: Theodore Gray
Acquired: 28 February, 2009
Text Updated: 1 March, 2009
Price: $8
Size: 8"
Composition: FeCCrV
Chromium
Chromium Chrome Vanadium Wrench
3D3D
Chrome Vanadium Wrench.
Source: Hardware Store
Contributor: Theodore Gray
Acquired: 28 February, 2009
Text Updated: 1 March, 2009
Price: $8
Size: 8"
Composition: FeCCrV
Chromium
Chromium Ferrochrome crystal
3D
Ferrochrome crystal.
Source: eBay seller valdor
Contributor: Theodore Gray
Acquired: 3 June, 2003
Price: $10
Size: 2.5"
Composition: FeCr
Chromium
Chromium Huge ferrochrome crystal
3D3D
Huge ferrochrome crystal.
Source: mrx
Contributor: mrx
Acquired: 15 July, 2005
Price: Trade
Size: 8"
Composition: FeCr
Chromium
Chromium Encrusted ferrochrome crystal
3D3D
Encrusted ferrochrome crystal.
Source: mrx
Contributor: mrx
Acquired: 15 July, 2005
Text Updated: 20 June, 2007
Price: Trade
Size: 4"
Composition: FeCr
Chromium
Chromium Ferrochrome lump
3D
Ferrochrome lump.
Source: eBay seller valdor
Contributor: Theodore Gray
Acquired: 3 June, 2003
Price: $5
Size: 2"
Composition: FeCr
Chromium
Chromium Chrome-vanadium steel socket
3D3D
Chrome-vanadium steel socket.
Source: Farm & Fleet
Contributor: Theodore Gray
Acquired: 8 February, 2009
Text Updated: 8 February, 2009
Price: $1
Size: 1"
Composition: FeCrV
Manganese
Manganese Lots of lumps
3D3D
Lots of lumps.
Source: eBay seller snooj
Contributor: Theodore Gray
Acquired: 22 August, 2002
Price: $10
Size: 0.75"
Purity: 99.9%
Manganese
Manganese Museum-grade sample
3D
Museum-grade sample.
Source: Theodore Gray
Contributor: Theodore Gray
Acquired: 24 February, 2004
Text Updated: 11 August, 2007
Price: See Listing
Size: 2"
Purity: >99%
Sample Group: RGB Samples
Manganese
Manganese Museum-grade sample
3D3D
Museum-grade sample.
Source: Theodore Gray
Contributor: Theodore Gray
Acquired: 24 February, 2004
Text Updated: 29 January, 2009
Price: See Listing
Size: 0.5"
Purity: >99%
Sample Group: RGB Samples
Manganese
Manganese Heavy lump of master alloy
3D3D
Heavy lump of master alloy.
Source: eBay seller grandejunquetion
Contributor: Theodore Gray
Acquired: 9 February, 2009
Text Updated: 8 February, 2009
Price: $10
Size: 6"
Purity: <70%
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