This Harvard dropout and her brother launched a company to conserve liquids in factories

Annie Lu was a student at Harvard when Covid-19 brought the world to a screeching halt, including her own college experience.

“I remember in March of 2020 basically being kicked off campus and everything going virtual,” Lu, 22, told CNBC in a video interview in June. At the end of the spring semester in 2020, Lu’s sophomore year, she did not return…