What's funny is that the video and the book are clearly meant to promote paper books, but I found the video in this blog about obsolete things... :-)
(Hey, I'm not against paper books, I own hundreds.)
Wednesday, September 08, 2010
It's A Book - By Lane Smith
What's funny is that the video and the book are clearly meant to promote paper books, but I found the video in this blog about obsolete things... :-)
(Hey, I'm not against paper books, I own hundreds.)
I believe BART has cell coverage underground.
ReplyDeleteI wonder how easy it is to get meaningful cell coverage in a NY subway station? What with the size of the platforms (large) and their attendant masses or potential callers, then all the metal structures (not like The Tube at all) causing absorption and multipath reflection issues. How many microsites from how many service providers would you have?
By the way, I don't get why there is still no cell phone coverage in the subways! Talk about an unmet need.
ReplyDeleteThat's a need I hope continues to be unmet. Then we won't have to listen to other people's conversations. The subway is bad enough already.
The lack of cell coverage in underground places and some high-rise buildings is probably by design. Some buildings actually jam cell signals so as not to interfere with business type work.
ReplyDeleteAnonymous is right, hearing other's meaningless babble on the surface is bad enough.
It's time for people to start taking cell phones away from the babblers, stomping on it, and then quietly walking away.
People forget the real reason for cellphones. They are to create network demand so that service providers can sell monthly service contracts. Same way as color printers are designed to sell ink and toner to people who don't need it.
ReplyDeleteActually, the way I know there's no connection is I read about all those people who want to read web articles on their iPhone, but couldn't until services like Instapaper helped them to save articles so they can read them without a connection.
ReplyDeleteCertainly in london, one reason is the cost and access for maintenance. London transport wanted to charge a rent that was so high that it would be difficult to justify building the network. You then have the difficulty of design, building it (only a few hours each night), and maintenance.
ReplyDeleteYou can't just put a cell mast/antenna on the platform. You have to have a 'leaky feeder' (think of a hosepipe with holes in it, the water leaks out along its length but in this case a cable with radio waves leaking out) put along the tunnels between platforms, along with all the associated equipment.
And of course it can't interfere with any of the existing tube infrastructure/signalling or the signals from existing cell masts.
It was designed but nothing built yet......
However some other tunnels and certainly liverpool and maybe glasgow do have some coverage in place.
Its not just a case of plonking in a new mast beaming the radio signals around....