fuel sensor test verbage on cnn

CNN is trying to explain the issue with the fuel sensor in layman's terms.
It's reminding me of the Ed Asner skit on Saturday Night Live, "you can't
put too much water in a nuclear reactor." The text of the explanation goes
like this:

" Last Wednesday, less than two and a half hours from liftoff, Discovery's
mission had to be scrubbed when a pre-flight test showed a sensor in the
hydrogen fuel tank was not working correctly. To test the sensor, a command
was sent that should have made it show the tank as empty, when it was
actually full. But the reading didn't change."

Why would they want the tank to appear empty when it was full in the first
place? Wouldn't they want it to read EMPTY when empty and FULL when full?

cheers

I think you will find CNN are correct, don't question anything just watch
the pretty pictures


"sweet_cheex" wrote in message
om...

CNN is trying to explain the issue with the fuel sensor in layman's terms.
It's reminding me of the Ed Asner skit on Saturday Night Live, "you can't
put too much water in a nuclear reactor." The text of the explanation goes
like this:

" Last Wednesday, less than two and a half hours from liftoff, Discovery's
mission had to be scrubbed when a pre-flight test showed a sensor in the
hydrogen fuel tank was not working correctly. To test the sensor, a
command
was sent that should have made it show the tank as empty, when it was
actually full. But the reading didn't change."

Why would they want the tank to appear empty when it was full in the first
place? Wouldn't they want it to read EMPTY when empty and FULL when full?

cheers

We are in the twilight zone.
--
Gene Seibel KB0NNN
http://pad39a.com/gene/broadcast.html
Because I fly, I envy no one.

In article ,
says...
Why would they want the tank to appear empty when it was full in the first
place?

To test that the sensor can read empty, and that nothing else untoward
happens as a result?

Just a guess.

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