People hand-write addresses? For "personal-touch" cards, maybe, other than that, use a printer. The thought of 1900 clerks peering at envelopes conjures images of movies like Brazil, or 1984.
My Firefox did everything but the Ninja! and arrows. Might be a Canadian thing as Google usually redirects to a .ca server. Then, of course, there's http://www.google.com/pacman/
How is the center of the earth defined? Center of mass? Mean distance from every point on the surface? The earth isn't uniformly dense, so I don't think they are the same.
The usual description is to look at a wave hitting a beach. If the wave is at a slight angle to the beach, the apparent speed of the wave traversing the beach far exceeds the speed of the wave's approach. Given a sufficiently straight bit of beach, and a shallow enough angle, it's possible to exceed the speed of light.
whitcwa: Yeah, but that's 26kWh a year, or a couple of bucks worth; not much compared to the cost of the lamp. And what's with "latest LED technology"? LEDs are no longer a big deal; they're everywhere. http://www.brillianz.co.uk/data/documents/Lumen.pdf tells me LEDs are still less efficient than fluorescents.
Don't know if torching an empty propane tank is as dangerous as a gasoline tank. If it is, I'm sure we'll see some YouTube videos of the ensuing explosion before long.
The thought of 1900 clerks peering at envelopes conjures images of movies like Brazil, or 1984.
Then, of course, there's http://www.google.com/pacman/
http://www.brillianz.co.uk/data/documents/Lumen.pdf tells me LEDs are still less efficient than fluorescents.
http://articles.philly.com/2011-10-26/news/30324353_1_pit-bull-seizure-ear