Pavel Viktor, a science teacher from Odessa, Ukraine, began posting his lectures on YouTube for absent students. He never expected, with many educational institutions around the world shutting down to help contain COVID-19, his videos would become so relevant and gain millions of views.

Today, despite the unbelievable popularity of the content, Pavel Viktor refuses to monetize his channel as he thinks that the education should be free. Physics is the basis of technology, it is now in decline in Ukraine, but, despite the objective difficulties, it is necessary to make every effort to educate new scientific minds.