No one took advantage of his 1492 voyage immediately. For one thing many people didn't know about it and he was considered a failure by the crown. It wasn't until 1498 that Cabot claimed North America for England and that is 6 years after Columbus. That is not immediate. The difference is the technology of ships and if it was in use by the country that sent the explorers.
The discovery of the cell was possible due to the invention of the microscope.
Columbus
the telescope
people coming
The answer is The Microscope.
In some times the scientists has say "This could be possible", but some others has say that advantage is not too possible but it cant.
"Immediately"
The Telescope
Since Columbus died in 1506. and Attucks was born in 1723, not possible for them to meet.
microscope
It is...Seeing that everything can be manipulate to ones advantage.
The main possible advantage is that in an experiment, it is possible to control some of the variables so that it is easier to measure the effect of key variables. In observational studies, no such control is possible.