Monday, September 22, 2003
Jack's got school. Jenny's got a council meeting. I've got a meeting with BT.
I'm up at dawn. How totally inhumane it is to get up so early!
Bernie and Jennifer say goodbye. We leave the others asleep. They can take their time to pack and take a leisurely journey back home.
We leave at 07:00. Jack's dropped of at his school in Cambridge at 09:00. I say farewell to Jenny, and I'm in MK by 10:30, the weather finally breaking 10 minutes before I get home. A real downpour after the excellent sunny weather enjoyed over the last three days.
Bernie and Rick get excited on their journey home listening to a 10GHz signal.
Bernie explains. "It was a radio thing - with the significance that the
frequency was very high (10368 MHz). At that frequency, just 10 or 20mph speed
will cause several hundred Hz Doppler shift. Doppler shift is something that in
practice you never come across. It's there with non geostationary satellite
links too, but again, that is something that most people don't get into (and
with all Broadband links you wouldn't have cause to see the Doppler anyway).
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