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Comment Re:Headers (Score 2) 562

Grossly inappropriate? Please. If you are selling bandwidth, you are going to measure it the way it comes out highest. Not because you are a thieving jerk, but because a) that's what your salespeople want and b) all of your competitors are doing it. Looking at the level 3 bandwidth usage is an error. It fails to account for - at minimum:
- TCP headers
- IP traffic that is hidden from the TCP level (retransmits, dupes, ICMP, etc.)
- session setup and teardown (SYN - ACK - SYN/ACK)
- Physical layer overhead (for example ATM requires multiples of around 50 bytes IIRC)
- PPP overhead (this is DSL after all)
- And certainly other things I've forgotten.

If you've ever looked at an ethernet level dump, it's not surprising in the least that that adds up to about 20-30%.

Comment Re:Also See http://xkcd.com/radiation/ (Score 1) 536

Right. The horrifying thing wasn't the scale of the disaster. To say the panic was out of proportion with the scale of the disaster misses the point. The horrifying thing was that Tepco and the Japanese government totally mismanaged it, failling to release data, telling people that things were under control when they weren't, releasing bad data, and bumping up their estimates of how bad it was by an order of magnitude more than once. Fukushima was not Chernobyl (catastrophic international disaster), but it wasn't much ado about nothing like Three Mile Island either.

Comment 737 vs concorde comparison misleading (Score 5, Informative) 403

Commercial airplanes use tons (literally) of fuel while taxiing. Idling a jet engine is expensive. And london-amsterdam is about the shortest commercially viable flight possible - only about 200 miles - or to put it in US terms, DC-NYC. So, yes, the concorde guzzled fuel - maybe 5 times what a 737 uses - but its fuel usage was not completely irresponsible - after all, you have to carry most of that fuel at mach 2.2...

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