Can I zip a git repo without losing anything?

Hi all

This is my first post to this list, so thank you for all your work.

After suggesting using zip files to move our projects around, I was told that you can not zip a git repo without loosing all the history. This didn't make sense to me, but two people told me the same thing, so I wasn't sure. I think they may have been confusing the zipped file you can download from GitHub with a zipped git repo.

If someone could put me straight on this, I'd really appreciate it.

Thanks

Carl