Nanotechnology Lecture 2 | Introduction to Scaling Laws: Surface-to-Volume Ratio & Mechanics

Описание: Welcome to Lecture 2 of the Nanotechnology series!

In this lecture, we dive into the fascinating world of scaling laws — how size dramatically affects physical properties — and why this principle is so important in nanoscience and nanotechnology.

🔹 Topics Covered in this Lecture:
What are scaling laws? Why size changes geometry → properties → performance.
Surface-to-volume ratio: why nanoparticles are so reactive.
Strength-to-weight ratio: fleas vs. elephants, and why smaller creatures are proportionally stronger.
Olympic weightlifters: human-scale evidence of scaling laws.
Carbon nanotubes vs. biological systems: extreme strength comparisons.
Scaling of mass and gravitational forces: why dust floats but rocks fall.
Friction vs. striction: how adhesion dominates at the nanoscale.
Wear life: why nanodevices wear faster — and how strong bonds can overcome this.
Springs and oscillations: microcantilevers vs. diving boards.
Scaling of potential, gravitational, and kinetic energy.

📖 Up Next (Lecture 3): Scaling Laws in Electrical Systems — resistance, capacitance, inductance, and more.

📘 Textbook Reference (for students):
This lecture covers topics also discussed in the textbook Nanotechnology: Understanding Small Systems by Ben Rogers, Sumita Pennathur, and Jesse Adams, which is widely used in nanoscience education.

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