Re: Would you go?
After giving it some thought and considering Eccles post I've come to the conclusion that it would not be necessary to take any weapons or items of personal protection with us should we be able to transport ourselves to a time gone by.
We would simply not be able to interact with other lifeforms or indeed the world around us. Even the smallest of interference by our visit could drastically alter the development of the world including our own future existence.
I believe that it could be possible to focus on past events in the same way one watches a film. You can not alter the progress of the film, you are merely a bystander watching from a different dimension, but with no control over the events. Ah! I hear you say, but you can alter the outcome of a film through editing. You are not altering the original recording though, you are producing another copy, a different copy, the original has been done and saved somewhere. Once a thing has been said or done it can not be unsaid or undone.
Watching historical events that have happened and then being stamped and saved in space and time that could be re-run should we ever be able to build suitable equipment to locate and play back the events. Perhaps it's already being done and we are experiencing visitors from the future, could ghosts be those visitors. Elusive to most, and with no impact on real life except stories that will never be proved....