on the contrary
- r contrary to expectations; on the contrary, he went out with his friends"
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- Intelligent glasses designed for professors
Scientists in Spain have developed a system based on augmented reality that, thanks to intelligent glasses, enables a professor to see notes or comments on the contents of a lesson and to see if the students understand explanations or if, on the contrary, they are having doubts or difficulties.
June 17, 2013 - Science Daily