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Engineering

Make things useful.

Sites​

YouTube Channels:

  • Mark Rober — More entertaining approach to science and engineering topics
  • Smarter Every Day — All sorts of science and engineering applications
  • Steve Mould — Random science and engineering topics
  • Practical Engineer — More focus on areas related to civil engineering
  • The B1M — Civil engineering, bridges and tunnels, urban planning, infrastructure projects, etc.
  • Real Engineering — Explore different interesting engineering designs, focus more on an end product
  • The Engineering Mindset — Explore specific components in different systems, focus more on a specific component

3D Animations:

DIY projects:

Websites:

Concrete / Cement

  • Concrete = cement + aggregate (sand, gravel, etc.)
  • YouTube: Explaining concrete while getting buried in it | Veritasium
    • Cementitious material is the most produced solid material on Earth
    • Concrete is dense, basically not possible to get buried in it
    • Concrete hardens by hydration, not drying. Crystals of hydrated minerals form and interlock
    • Fun fact: regular pop (e.g. Coke) can slow down the setting of concrete
  • YouTube: The big problem with cement, and how to fix it | Vox
    • The embodied carbon in cement is huge, in buildings, roads, and other infrastructure
    • Cutdown emission: cutdown excess concrete, switch fuels during production, reduce clinker ration, carbon capture

Shape Memory Alloy: Nitinol (Nickel Titanium Alloy)

  • YouTube: How NASA Reinvented The Wheel | Veritasium
    • So far the best explanation of the properties of Nitinol
    • Great visualization of the phase transitions: austenite (high temp) and twinned/detwinned martensite (low temp)
    • Other properties: superelasticity (strain under stress), Elastocaloric (exothermic under stress, endothermic under release)
    • Applications: heart stents, airless tires, vortex generators on planes, replacing hydraulics or pressurized components
  • YouTube: Real Engineering — More details on the problem of current Mars rovers' wheels
  • YouTube: Verge Science — Less technical terms

Starlink

Aeronautics