(ZOOM) Look Alikes. Parts 1 and 3

By Andrew (Tony) A. Havics, CIH, PE
Environmental, Health and Safety,
Microscopy, Material Science &
Forensic Engineering, pH2, LLC
ahavics@pH2LLC.com, https://www.pH2LLC.com

Friday, November 22nd, 2024, 7:00 PM CST on ZOOM

6:45 PM CST, 4:45 PST: Meet and Greet

7:00 PM CST, 5:00 PST: Presentation
Microscopists often encounter images of objects under the microscope that look like other objects. These look-alikes or microscopical doppelgangers come in a few kinds, the first (Type 1) being objects of similar size (within a order of magnitude), the second (Type 2) being objects of different size scales but similar morphologies, and the third (Type 3) being objects of abstract elements. The third may be better characterized as loosely connected or artistically correlated structures.

For Type 1, some of these look-alikes many be similar objects within a group or something completely outside that grouping. A few examples are: fibers that have similar morphologic or optical properties of asbestos, fungal spores of similar shape, similar amoebae, other specimens that look like fungal spores, spherical objects of various kinds, crystals with similar growth habits (snow & camphor), tobermite in cement and leaf surfaces, natural and synthetic fibers, clays and ferrous oxides, GSR & pyrotechnics, polymer whiskers and fungal hyphae, etc.

Type 3, examples include: the school of fish habit of TNT crystallization, Bousard's 4 Horsemen of the Apocalypse, “crosses” in various objects from glass spheres to air bubbles to starch, Gray's Snoopy & the Red Barron, Taraxacum officinale pollen and the Eye of Sauron, crystals forming iconic images serendipitously, fringe cell from the intestinal villus of the mouse looking like the cratered surface of the moon, etc. Now that these two types have been properly described, on to the images, and stories that go with them.

Bio Sketch:
Mr. Havics is an Honors graduate from Georgia Institute of Technology with a Bachelor's Degree in Mechanical Engineering. He is a Certified Industrial Hygienist (CIH), and a registered Professional Engineer (PE) with over 35 years of experience in environmental, health and safety, building science, and materials science consulting. He is a Limited Term Lecturer at Purdue in West Lafayette and adjunct faculty at the McCrone Research Institute in Chicago. He was formerly adjunct faculty at both IU School of Medicine and IUPUI. Mr. Havics has experience with Phase Contrast Microscopy (PCM), Hoffman Modulation Contrast Microscopy (HMC), Nomarski Differential Interference (DIC) microscopy, Schlieren microscopy, Light Section microscopy, transmitted and reflected Polarized Light Microscopy (PLM), Fluorescence microscopy, Fourier Transmission Infrared (FTIR) microscopy, Microspectrophometry (MSP), Thermomicroscopy, Scanning Electron Microscopy with Energy Dispersive X-Ray Analysis (SEM-EDS), Transmission Electron Microscopy (TEM) with EDS and Selective Area Electron Diffraction (SAED). Mr. Havics has worked on a number of insurance claims as well as litigation and has testified in federal court as an expert engineer and microscopist.

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