Foam can look like an ordinary solid block, yet it often feels surprisingly light when picked up. A large piece may take up plenty of …

Understanding how material properties govern surface interaction and performance.
How mass and density affect handling, balance, and physical feel.

Foam can look like an ordinary solid block, yet it often feels surprisingly light when picked up. A large piece may take up plenty of …

A stone dropped into a bucket of water usually goes straight down. A piece of dry wood may stay on the surface. An empty container …

Why a piece of wood does not act like a stone At first glance, floating looks almost too simple. Some objects stay on the surface, …

Aluminum and the feel of mass Aluminum is a useful material for thinking about weight and density because its behavior is felt long before it …