well it depends what you mean by what the effects were, in the long term no, it didn't do much to hurt germany's war industry, the germans had an amazing ability to recover from bombing raids and despite the uniqueness of this raid, it was no different, within 48 hours the germans had tens of thousands of workers at the site, the dams were returned to operational status within a couple of months, in the meantime industry in the ruer (can't spell) slowed dramatically in the first couple of days, after that they managed to get enough electricity. However the raid had huge effects on the moral of both nations involved, for Britian it gave the higher powers faith in what they were beggining to see as a useless bomber command, it was also used to phnominal effect to bost the moral of the people, the fact that RAF bombers managed to destroy a target deep in germany that was thought to be indestructable was amazing, however it was having exactily the opposite effect in germany, the censors tried to keep it out of the papers as much as possible however you can't hide the fact that two of the country's biggest dams have been destroyed..........