In continuum mechanics, stress is a physical quantity that expresses the internal forces that neighbouring particles of a continuous material exert on each other. For example, when a solid vertical bar is supporting a weight, each particle in the bar pulls on the particles immediately above and below it. When a liquid is under pressure, each particle gets pushed inwards by all the surrounding particles, and, in reaction, pushes them outwards. These macroscopic forces are actually the average of a very large number of intermolecular forces and collisions between the particles in those molecules.
Posts about Tractions
  • How To Use Social Media To Attract Millennial Buyers

    … US millennials based on 2.4 billion social signals associated with over 2 million websites and mobile apps. Regardless of device or platform millennials, representing about 30% of the active US Internet population (comScore) share frequently and are listened to: 25% of millennials share content on social networks, 3.6x more than average…

    Heidi Cohen/ Heidi Cohenin Social How To's- 18 readers -
  • How UK publishers are rethinking audience measurement

    … that it hopes will be ready to roll out by early 2016. The plan is to create a new multi-platform audience-measurement system from scratch, promising to overhaul the way media planners evaluate publishers’ reach and engagement. Rufus Olins, CEO of Newsworks, explained the thinking behind the initiative to Digiday. Why is the review of audience…

    Chris Smith/ Digidayin How To's- 7 readers -
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