1. What Determine the Heat Conduct Speed
Determined by the movement and interaction of particles or quasiparticles
- Lattice Vibration (晶格震动)
- Well-ordered crystal structure and stronger bonding would generally have higher thermal conductivity
- In metal, free electrons are a major contributor, carrying heat
- Porosity, the effective path increase, lower thermal conductivity
2. How Teleconvertor Works
A set of lenses that magnifies the image. NO movement
Design consideration
- Magnification: 1.4x, 1.7x, 2x, the greater, the more light loss
- Light loss, 1.4x result in one-stop loss
Drawback
- Some lens not compatible
- Degrade the performance
3. Name Origin of Half Moon Bay
The half-moon shape of the bay, viewed from a distance or on map
4. How Fast is Goalkeeper Reaction Speed
- Fast twitch muscle fiber: 快速肌纤维，higher percentage of fast-twitch fibers
- Reaction Time
- Average human: 0.25s. College-aged individuals
- Goalkeeper: 0.1s to 0.15s.