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I had some damaged optical fiber cables at home, at which I decided to take a capture of a single FC-PC cable on a Longman dictionary.
I reckon that I should have focused on the "fibre optics" phrase better than this, but I guess I was too lazy to reposition the cable.
Lawrence Livermore National Laboratory scientists developed high-performance, lightweight fiber-composite materials for national security programs and a variety of demanding applications, including use for energy storage flywheels. Resin-impregnated fiber strands are shown wound onto a loomlike mandrel, where they will be cured and then tested.
Captured image showing microscopic fiberglass fibers and other ambient particles under 400x magnification using Phase-Contrast Microscopy (PCM) optical illumination method. Note the "large" size of the fiberglass fibers relative to the 100-micrometer diameter graticule cirlce.
Certain fiber-counting rules using the PCM analysis method require that the fiberglass fibers be counted as "asbestos" (including any other interference particles that may meet the specific definition of a "fiber", such particles possibly as: cellulose, artificial man-made fibers, diatomes, hyphal fragments, organic structures, etc., may all be influential during counting process). Although an obvious interference to accurate airborne asbestos fiber concentrations, the non-asbestos fibers may adversely contribute toward a "positive-bias" of results.
Among other scientific applications, PCM is a fairly common, standard analytical technique utilized for testing air monitoring samples for airborne fiber concentrations pertaining to asbestos-related work, such as projects related to: abatement, repair, clean-up, worker exposure, ambient background, etc.
Further, PCM equipment is relatively inexpensive, portable, and sturdy enough that it can be setup directly on many project sites, a particularly convenient advantage. This testing method is currently so routine, that if one is familiar with an asbestos abatement work project that has occurred or will occur, it's quite likely that PCM air monitoring is involved.
However, while currently an acceptable standard method for determining worker exposure levels to airborne fiber concentrations and for "clearance" of post-abatement work areas, there are a number of significant issues regarding over-reliance of PCM for airborne asbestos detection.
One main cause for concern are serious limitations of PCM's optical resolution. Unknown quantities of asbestos fibers too fine for observation at 400x may not be discernible using PCM, but are better detected using more advanced and asbestos-specific imaging techniques such as transmission-electron microscopy (TEM). PCM may be considered more as a simple "screening" method and possibly inadequate for truly accurate analyses of airborne asbestos fiber concentrations; another debate that typically boils down to Health vs. Cost, as TEM sample analysis is comparatively many times more costly than PCM sample testing fees.
Also depicted in this image, is a standardized Walton-Beckett graticule with incremental graduated x-y axes measured in micrometer units; diameter is approx. 100-µm across. Encircling the graticule area are measured scale markers in 3:1 length-to-width aspect ratio for visual reference. The green color is from a green-tinted light interference filter.
A fiber optic novelty item shines brightly in the darkness of a room. Each tiny speck of colored light is the result of light exiting at the end of the fiber. The collection of fibers from which the light is exiting is bundled together at one end where the light enters. Each fiber takes on a parabolic curve. Light entering the fibers undergoes total internal reflection (TIR) until it exits the fibers at the end.
For more information about the physics of total internal reflection, visit The Physics Classroom Tutorial - www.physicsclassroom.com/Class/refrn/index.cfm.
Close up of fabric.
Another macro shot with the Panasonic Lumix G Macro 30mm f/2.8 lens. It's a true 1:1 magnification lens and it has Optical Image Stabilization (OIS), which is nice to have. 60mm is the full frame equivalent field of view.
Playing with fiber optics, exposure and a multicolored flashlight. I'm going to have to revisit this on in the future
WHITEMAN AIR FORCE BASE, Mo. – U.S. Air Force Guards men, Staff Sgt. Darry Walker (left), and Master Sgt. Mike Leddy, both 217th Engineering Installation Squadron, Springfield, Illinois, separate colored stands of fiber optic cable to determine which stands need to be spliced Sept. 24, 2009. Air Force Guard members from both the 271st and the 241st have spent over two months at Whiteman AFB replacing copper transmission cable with more efficient fiber optic cable. The fiber optic cable will provide 50% more capability and expansion to utilize a greater number of networked products. (U.S. Air Force photo/ Senior Airman Kenny Holston)
Additional close-up view of a vintage asbestos gasket material with manufacturer's labeling indicating "Garlock 900" and showing chrysotile asbestos fibers along the gasket's surface.
Allthough sold as carbon fiber sheet, this material is actually clear sticker vinyl over raw carbon fabric with adhesive backing stuck to the back of the raw fabric. This is not a carbon fiber sheet.
For real carbon fiber sheet visit www.sierracomposites.com
FIB Heineken 2010, XVI Festival Internacional de Benicàssim
The Fiber Arts Crew at Warren Wilson started with two students who came from crafting families and a lot of help from friends of the College. Katherine Evans and Allison Hoyman-Browe had been hosting a craft night in Dorland, and they got the idea for a weaving crew from their experiences there. They envisioned a “textile traditions” crew that taught the community about fiber crafts.
In 2011, the crew continues and is supervised by Melanie Wilder. Their shop is in a house on the Fortune property.
The fiber optic cable trench is a little deeper than the existing pipes in the schoolyard. The trench is criss-crossed with other cables, most likely water pipes used to irrigate the grass. This trench is about 8 to 12 inches deeper than those water pipes.
Although fiber is advantageous in its bandwidth and ability to cover large distances its transmissive qualities can be damaged by sharp kinks or bends. In many installations a hard plastic duct is used for routing the fiber to different locations to protect it from damage.
Pattern from Amy Karol's Bend-the-Rules Sewing.
Wish I'd added some interior pockets. Maybe next time.
Testing the process of installing RTMs into the cryostat using a mechanical RTM and prototype cryostat assembly. These mechanical prototypes have all of the same features and most of the same tolerances as the real RTMs and cryostat assembly, but use metallic components in place of the CeSic (carbon fiber reinforced silicon carbide) and non-functional CCD sensors, (Travis Lange/SLAC National Accelerator Laboratory)
FIB Heineken 2010, XVI Festival Internacional de Benicàssim
A crocheted flower created for the Putting Down Roots community fiber arts project in support of native prairie plants and their environmental benefits.
Fiber art quilt with black fabric border (not shown). Wall hanging made from fabric, yarn, threads, quilted and embroidered
A Nikon SB-28 (1/16) fired through the back end of the fibre optics and a red gelled SB-25 (1/32) came from the left. Triggered by ebay radiotriggers.