To record the things they have just discovered so it is exact and so they don't loose the information.
as a record for themselves and othersto be able to claim precedence, ie, that they were able to discover something firstso that other scientists can check their experimentation and reasoningso that other scientists can make use of the resultsusually producing results of this kind is necessary for gaining promotion in the academic world and research institutionspersonal satisfaction
Scientists do have homework. They write reports and apply for money from grants. They write scientific papers to be published. They actually have a lot of extra work to do besides their jobs.
To know about scientists life
How do scientists usually communicate and defend the results of an investigation
theory
theory
theory
theory
theory
theory
Results get published.
theory