Perspective

Factors

• Color

• Geometry

• Texture (surface height uniformity, hardness, yield strength

• Density

• Smell?

• Taste?

• Acidity?

• Thermal boundaries for solid, liquid, gas states

• Vibration Dampening? (natural frequency?)

• Acoustics?

• Specific heat capacity

• Thermal resistance

• Van Der Waals forces?

• Electrical resistance

• Biological reactance

• Magnetic fields?

• Chemical reactivity

Factor Change Analysis

• Mathematics

• Fundamental Interactions