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.

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Text and images Copyright (c) 2010 by Theodore W. Gray.
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Tungsten
Tungsten Huge light bulb
3D3D
Huge light bulb.
Source: Nick Brandenburg
Contributor: Nick Brandenburg
Acquired: 10 February, 2007
Text Updated: 29 January, 2009
Price: Donated
Size: 8"
Purity: 99%
Tungsten
Tungsten Tungsten-weighted dart
3D3D
Tungsten-weighted dart.
Source: Walmart
Contributor: Theodore Gray
Acquired: 10 February, 2007
Text Updated: 10 February, 2007
Price: $15
Size: 5"
Purity: 90%
Tungsten
Tungsten Zone-refined single crystal
3D3D
Zone-refined single crystal.
Source: Ivan Timokhin
Contributor: Theodore Gray
Acquired: 10 May, 2006
Text Updated: 14 February, 2007
Price: $100
Size: 5"
Purity: >99.99%
Tungsten
Tungsten Tungsten turnings
3D3D
Tungsten turnings.
Source: Derek McKinley
Contributor: Derek McKinley
Acquired: 11 March, 2007
Text Updated: 12 March, 2007
Price: Donated
Size: 2"
Purity: >95%
Tungsten
Tungsten Bullet blank
3D3D
Bullet blank.
Source: Derek McKinley
Contributor: Derek McKinley
Acquired: 6 April, 2007
Text Updated: 6 April, 2007
Price: Donated
Size: 0.5"
Purity: >90%
Tungsten
Tungsten Tungsten Pig
3D3D
Tungsten Pig.
Source: Anonymous
Contributor: Theodore Gray
Acquired: 11 August, 2007
Text Updated: 8 December, 2007
Price: Confidential
Size: 7"
Purity: >90%
Sample Group: Medical
Tungsten
Tungsten Tungsten carbide cutting wheel
3D3D
Tungsten carbide cutting wheel.
Source: Boeing Surplus Store
Contributor: Theodore Gray
Acquired: 11 August, 2007
Text Updated: 11 August, 2007
Price: $30
Size: 8"
Purity: <50%
Tungsten
Tungsten Tungsten carbide ring
3D3D
Tungsten carbide ring.
Source: Ed Pegg Jr
Contributor: Ed Pegg Jr
Acquired: 11 August, 2007
Text Updated: 11 August, 2007
Price: Donated
Size: 1"
Purity: 97%
Tungsten
Tungsten Ugly partially melted cluster
3D3D
Ugly partially melted cluster.
Source: Ethan Currens
Contributor: Ethan Currens
Acquired: 4 September, 2007
Text Updated: 19 November, 2007
Price: Donated
Size: 1"
Purity: 99.9%
Tungsten
Tungsten Tungsten carbide ring
3D3D
Tungsten carbide ring.
Source: Ed Pegg Jr
Contributor: Ed Pegg Jr
Acquired: 4 September, 2007
Text Updated: 3 September, 2007
Price: Donated
Size: 1"
Purity: 97%
Tungsten
Tungsten Tungsten carbide ring
3D3D
Tungsten carbide ring.
Source: Ed Pegg Jr
Contributor: Ed Pegg Jr
Acquired: 4 September, 2007
Text Updated: 3 September, 2007
Price: Donated
Size: 1"
Purity: 97%
Tungsten
Tungsten Tungsten carbide inserts
3D3D
Tungsten carbide inserts.
Source: Boeing Surplus Store
Contributor: Theodore Gray
Acquired: 30 September, 2007
Text Updated: 30 September, 2007
Price: $2
Size: 0.75"
Purity: <50%
Tungsten
Tungsten Evaporation boat
3D3D
Evaporation boat.
Source: Ivan Timokhin
Contributor: Ivan Timokhin
Acquired: 30 September, 2007
Text Updated: 4 October, 2007
Price: Donated
Size: 4"
Purity: 95%
Tungsten
Tungsten Tungsten carbide ring
3D3D
Tungsten carbide ring.
Source: Ed Pegg Jr
Contributor: Ed Pegg Jr
Acquired: 4 September, 2007
Text Updated: 3 September, 2007
Price: Donated
Size: 1"
Purity: 97%
Tungsten
Tungsten Lit tungsten filament
3D3D
Lit tungsten filament.
Source: Nick Mann
Contributor: Nick Mann
Acquired: 23 December, 2007
Text Updated: 23 December, 2007
Price: Donated
Size: 1"
Purity: >98%
Tungsten
Tungsten Lit tungsten filament 2
3D3D
Lit tungsten filament 2.
Source: Nick Mann
Contributor: Nick Mann
Acquired: 18 February, 2008
Text Updated: 20 February, 2008
Price: Donated
Size: 1"
Purity: >98%
Tungsten
Tungsten Evaporation basket
3D3D
Evaporation basket.
Source: Anonymous
Contributor: Theodore Gray
Acquired: 8 March, 2008
Text Updated: 8 March, 2008
Price: Anonymous
Size: 1"
Purity: >95%
Tungsten
Tungsten Bottle of spheres
3D3D
Bottle of spheres.
Source: Kevin Hopkins
Contributor: Theodore Gray
Acquired: 19 November, 2008
Text Updated: 29 January, 2009
Price: $37
Size: 0.125"
Purity: >95%
Tungsten
Tungsten Unusual tungsten carbide drill bit
3D3D
Unusual tungsten carbide drill bit.
Source: Hardware Store
Contributor: Theodore Gray
Acquired: 1 December, 2008
Text Updated: 2 December, 2008
Price: $20
Size: 0.5"
Purity: >60%
Tungsten
Tungsten Commercial tungsten carbide lathe bit
3D3D
Commercial tungsten carbide lathe bit.
Source: Hardware Store
Contributor: Theodore Gray
Acquired: 1 December, 2008
Text Updated: 2 December, 2008
Price: $10
Size: 0.25"
Purity: >60%
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