Understanding the velocity-distribution of hydrogen molecules and their isotopic variants is hard enough. Go ahead and multiply that lesson by the complex cube root of infinity when it's being taught by an expatriate from war torn Croatia. But before you blame your failed midterm on an in-class language barrier and tweet some ignorant shit with #ThisIsAmerica, make an adjustment. The lecture notes are posted online and Adderall is readily available all over campus. You'll be amazed how easily amphetamine and a few office hours sessions can turn things around.