Quantcast

Latest Paulo Arratia Stories

2014-02-25 14:27:20

When deciding what materials to use in building something, determining how those materials respond to stress and strain is often the first task.

2011-05-18 15:30:00

A biomechanical experiment conducted at the University of Pennsylvania School of Engineering and Applied Science has answered a long-standing theoretical question: Will microorganisms swim faster or slower in elastic fluids?


Word of the Day
upstander
  • A person who stands up for something, as contrasted to a bystander who remains inactive.
  • One of the upright handlebars on a traditional Inuit sled.
The word 'upstander' in the first sense here is a play on the word 'bystander' and the idea of 'standing up' for something.