How exactly do they superimpose the yellow line over the field during broadcasts? A few specific questions:
(1) Is there some sort of “beacon” attached to the first down marker on the side line which is then extrapolated to a line across the field?
(2) Can they do this from all camera angles, or does it require a specially equipped camera (or one that doesn’t change field angle)?
(3) How come the line is underneath the players when they pass over it, but remains on the green grass and white chalk (but doesn’t appear on the white pants of the players?) I presume this is analagous to “green-screen” technology, but I don’t quite get why it works when the players share some of the same colors as the field.
I advise people to stay away from howstuffworks.com until they figure out that popup windows are unnecessary. It’s almost as bad as a porn site (from what I hear about porn sites, that is)
Nope - Popup stopper and their ilk are great as far as they go, but companies need to understand that popups are not welcome. Neither are cookies. Most companies have figured out that cookies are unwelcome, but haven’t figured that out about popups yet.
Just like telemarketers - if no one buys this crap, they will get rid of it.