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The site shows example sentences for English words. How the word or phrase could be used in a sentence?
" ... Picture a solid object like a cement pillar. You have it, you watch it, and you subject to a lot of real-world factors. It gets hot and cold. It has weight placed atop it and removed. People push it, pull it, or lean against it. The masses around it all pull (or push) on it. If you could map out all the different forces acting inside the pillar, including things like strains and stresses, you’d find that they not only varied with time and in which ways they pointed, but that even a vector field wasn’t enough to describe it. Instead, you’d need something even more broad, that can include things scalars and vectors couldn’t. That’s when you need a tensor. ... "