3 ms·The knowledge gained is forever. Once we learn something in science and engineering…by melling 4y agoThe knowledge gained is forever. Once we learn something in science and engineering…rrss 4y ago… it vanishes when the companies fold?melling 4y agoUnlikely. The knowledge is with the employees, filed patents, etc. in fact, the information is probably constantly leaking out of the company. It’s hard to keep secrets.