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Archives: • July, 2007

Politics are the same today as they where forth years ago. Can't we do better?

By Bob Paddock at 07/07/07 07:43
While going through my files, I came across this forty year old paper that my parents had given me. It really makes me wonder what has changed in the last forty years?

"Dear Sirs:

We have the distinguished honor of being members of a committee to raise $50,000.00 to be used for the planning of a statue of John F. Kennedy in the hall of Fame, Washington, D.C.

The committee was in quite a quandary about selecting a proper location for the statue. It was thought not wise to place it beside that of General Washington, who never told a lie; nor beside that of F.D.R., who never told the truth, since John F. Kennedy could never tell the difference.

After careful consideration, we think it should be placed beside that of Christopher Columbus; the greatest "New Dealer," of them all. He started out not knowing where he was going; on arriving, did not know where he was; and in returning, did not known where he had been; and did it all on borrowed money.

The inscription on the statue will read, "I pledge to John F. and to the national debt, for which he stands, one man expendable, with socialism and taxes for all."

Moses once said to the children of Israel, "Pick up your shovels, mount your asses and camels, and I will lead you to the Promised Land." Nearly six thousand years later, Roosevelt said, "Lay down your shovels, sit on your asses and light up a Camel, this is the Promised Land. Now Kennedy is stealing the shovels, kicking our asses, raising the prices of Camels and taking over the Promised Land.

If you are one of those who has money left over after paying taxes, we will expect a generous contribution from you for this worthwhile project.

Sincerely yours,

McCann, Hertz, and Howe"

Sounds like today to me, does it to you?

Tags: john f kennedy • mccann hertz and howe • new deal • socialism and taxes •
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Unmanned Ariel Vehicles (UAVs), Inertial Navigation Simplified

By Bob Paddock at 07/07/07 07:13
A friend of mine is playing with Unmanned Ariel Vehicles (UAVs). We were discussing how UAVs do the "Unmanned" part. A short time later I came across this old, humorous, paper while going through my files:

Inertial Navigation Simplified

"First, with INS the airplane knows where it is at all times. It knows this because it knows where it isn't.

By subtracting where it is from where it was, or where it isn't from where it is (whichever is first), it obtains a difference or deviation.

The inertial system uses deviations to generate corrective commands to drive the system from a position where it is, to a position where it isn't. Arriving at the position where it wasn't, it now is.

Consequently, the position where it is, is now the position where it isn't. In the event that the position where it now is, is not the position where it wasn't, the system has acquired a variation. The variation being the difference between where the airplane is and where it wasn't.

The +thought+ process of the system is as follows: Because a variation has modified some of the information which the airplane has obtained, it is not sure where it is. However, it is sure where it isn't (within reason), and it knows where it was. It now subtracts where it should be from where it wasn't (or vice versa) and by differentiating this from the algebraic difference between its deviation and its variation, which is called error, it computes the correct information to compensate for all factors, supplying accurate navigation information."

--- relayed by K0HBO via Packet Radio, Feb/08/1987.

Tags: unmanned ariel vehicles uavs • inertial navigation • machine thought process • packet radio •
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Lose Ends; Software Safety and More

By Bob Paddock at 07/04/07 08:18
My Software Safety site was mentioned by Ed Nisley in his Nisley's Notebook column Dr. Dobbs Journal, in the July 2007 issue.

The same article is found the printed magazine as well.

See Ed Nisley's Loose Ends to read the article on line.

Tags: software safety • dr dobbs journal • ed nisley • system failure software •
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Welcome to our new blog!

By Bob Paddock at 07/04/07 08:11
http://www.bpaddock.com now has a blog, where you can keep up with my adventures on the Allegheny River bicycle trails, and adventures in embedded hardware and software design.

Tags: bob s blog • allegheny river bicycle trilas • embedded hardware • embedded software •
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Archives: • July, 2007

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