engineering

11 articles · All tags

• Steel and Alloys Explained: How Carbon and Chromium Work
  Steel is iron with a little carbon, and carbon atoms block the crystal defects that let iron bend, which is why steel is so much stronger than pure iron.
• Viking Longships: How They Were Built and Sailed
  Viking longships were long, shallow ships driven by oars and one square sail, which carried Norse crews from Scandinavia to Iceland, Greenland and North America.
• How Zippers Work: Teeth, Slider and Interlocking Chain
  A zipper closes when a sliding wedge presses two rows of teeth together so each tooth locks into the gap opposite. Here is how the slider and teeth work.
• How Hydraulics Work: Pascal's Principle Explained
  Pascal's principle says pressure applied to a confined liquid passes equally in all directions, so a small piston can produce a much larger force on a bigger one.
• How Suspension Bridges Work: Cables, Towers, and Tension
  Suspension bridges hang the deck from main cables held up by towers and anchorages. See how tension carries the load, using the Golden Gate Bridge as the example.
• How Do Airplanes Fly? The Physics of Lift Explained
  Wings generate lift by deflecting air downward and creating lower pressure above the wing. Here is how angle of attack, speed, and wing shape make flight work.
• Crowd Dynamics and Crowd Safety
  How crowds physically behave — density, flow, and the crowd-crush mechanism — and why crowd disasters are preventable engineering failures, not stampedes of panic.
• Tribology: Friction, Lubrication, and Wear
  The science of rubbing surfaces: why friction follows simple laws, how lubricant films carry loads, and why wear is the dominant failure mode of machinery.
• 3D Printing: Additive Manufacturing
  How 3D printing builds objects layer by layer — the main technologies (FDM, SLA, SLS, metal powder-bed), where they win against machining, and where they still lose.
• Stress and Strain
  The two fundamental measures of how materials respond to loads: force per unit area and fractional deformation.
• Structural Loads and Beam Bending
  How engineers classify loads, and how bending moment and deflection are computed for beams — the backbone of structural design.