For the benefit of eff oh (who's post has been deleted), this is the 'Spectators' Baclony, where we try to answer enquiries as gently as possible. Not all are familiar with B757s, and may get the 'words' wrong. The nose-wheel IS indeed 'braked' on retraction on the 757, by rubbing strips in the nose gear bay, so 'Rude Boy' was in fact 'technically' correct in what was posted, although it was not well written.
A 737 can certainly have the window come open on take-off, and as the video shows, it is distracting but not life-threatening. Of the 757 I know not.
However, this thread has nearly passed its 'best-before' date, and further discussion of rivets/bolts/shadows will consign it to another thread here.
'Spectators' are welcome to ask questions about flying with the window open or discuss other aspects of this topic, of course.