New Paper Investigates Engineering Design Constraints on the Bacterial Flagellum

bacterial flagellum, biology, Colorado State University, computer science, cost, costs, dependency network, design triangulation, dimensions, energy needs, Engineering, form, helical propeller, Intelligent Design, Irreducible Complexity, logic controls, materials, motility, Paul Nelson, propulsion, redirection, signals, Steve Laufmann, Systems Biology, timing, Waldean Schulz, Waterfall Model
This technique of examining biology through the eyes of engineering is not necessarily new — systems biologists have been doing it for years. Source
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Kimberella — Conflicting Evidence from Taphonomy

ammonium chloride, animals, bilaterians, bivariate analysis, bottom waters, Burgess Shale, Cambrian Explosion, Cambrian News, Chengjiang, death-masks, Ediacaran Period, Evolution, feeding traces, fossil record, hyporeliefs, Kimberella, Kimberella series, Konservat Lagerstätten, latex casts, limpets, Maotianshan Shales, motility, Precambrian strata, taphonomy, trace fossils
The fossilization of Kimberella specimens was most likely based on rapid burial with sand during storm events. Source
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Molybdenum Is Stored in Cells by a Powered Piercing Machine

anhydride hydrolysis, armor, armor-piercing bullets, ATP, ATP-binding groove, bacteria, Biochemistry (journal), biomineralization, carbon, chemical energy, Chile, China, diet, DNA replication, Earth’s crust, Energy, energy metabolism, entropy, Evolution, genetic information, gun, human body, industry, Intelligent Design, kinetic energy, Max Planck Institute of Biophysics, melting point, metal, molecular machines, molybdate, molybdenum, MoSto system, motility, nitrogen, PNAS, protein, steel, Steffen Brünle, sulfur, United States
Molybdenum comprises the second smallest percentage of mass in a normal human body, but that trace amount serves a vital function in several key enzymes. Chemical element molybdenum, affectionately called “moly” by manufacturers, is classified as a refractory metal (i.e., able to retain its shape when heated), bearing similarities to lead. It was only declared a chemical element in 1790 with the abbreviation Mo. Because of its very high melting point, it is prized in industry for its ability to toughen steel and armor. Molybdenum’s abundance in Earth’s crust is estimated at 1.2 ppm, mined mostly in China, the United States, and Chile (molybdenum.com). An Essential Element Why would soft, squishy biology need such a hard substance? The answer is that without it, life would not be possible. A 2009…
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