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Dr. Know
549274.  Wed May 06, 2009 5:04 pm Reply with quote

Ooooh. *researches Archimedes*

 
Efros
549352.  Wed May 06, 2009 6:30 pm Reply with quote

He did a lot of screwing apparently...

 
Sadurian Mike
549354.  Wed May 06, 2009 6:35 pm Reply with quote

No wonder he reeked.

 
Efros
549357.  Wed May 06, 2009 6:36 pm Reply with quote

's why he bathed.

 
Sadurian Mike
549358.  Wed May 06, 2009 6:37 pm Reply with quote

And then went about shouting at other people in an effort to get them to have a bath as well.

 
Efros
549360.  Wed May 06, 2009 6:39 pm Reply with quote

Or maybe he was just a perv!

 
Sadurian Mike
549380.  Wed May 06, 2009 7:26 pm Reply with quote

Well he was Greek.

 
TwistedByKnaves
549462.  Thu May 07, 2009 6:44 am Reply with quote

A Cunning Trap, I'm afraid!!

Many airships are, when loaded, heavier than air and rely on thrust/ aerodynamics to get and stay airborne.

Wikipedia tells me that when the aerodynamics support more than 40% of the load, we move into a new category of hybrid craft. Between 0% and 40% we have heavier than air airships.

A chum of mine was a pilot with Airship Industries in the early 80s and told me that to pick up speed, you went into a power dive. Something he had not anticipated.

 
Sadurian Mike
549658.  Thu May 07, 2009 2:02 pm Reply with quote

TwistedByKnaves wrote:
A Cunning Trap, I'm afraid!!

Many airships are, when loaded, heavier than air and rely on thrust/ aerodynamics to get and stay airborne.

Trapped in your own trap.

"Many" does not definitively define an airship. Look at the pictures of tethered Zepplins, blimps and modern airships and see if they are;

a) moving forwards.
b) floating.



As an "airship" is technically defined as a steerable self-propelled aerial vessel that cannot leave the atmosphere, we could include aeroplanes and helicopters. The popular definition, however, is a powered lighter-than-air vessel such as a blimp or "Zeppelin".

EDIT; "definitively" is not spelt "definitely"....


Last edited by Sadurian Mike on Thu May 07, 2009 3:20 pm; edited 1 time in total

 
Posital
549672.  Thu May 07, 2009 3:08 pm Reply with quote

TwistedByKnaves wrote:
Wikipedia tells me...

Oh dear - a talking website. You need to learn to think for yourself, TBK.

 
Davini994
549705.  Thu May 07, 2009 3:34 pm Reply with quote

Quote:
Trapped in your own trap.

Counter-KLAXON! 3 points, well done.

 
Posital
549753.  Thu May 07, 2009 4:16 pm Reply with quote

Sadurian Mike wrote:
EDIT; "definitively" is not spelt "definitely"....

Do you mean spelled?

/me hides.

 
Sadurian Mike
549769.  Thu May 07, 2009 4:25 pm Reply with quote

You're right.

Have a pedant-cake.

 
TwistedByKnaves
549777.  Thu May 07, 2009 4:30 pm Reply with quote

Well, that's me told...

I save this factoid for a quarter of a century and then blow it with one loosely phrased sentence. Ho hum.

Quite right, Mike: I certainly cannot claim that all dirigibles and blimps are always flown heavier than air. Only that some are sometimes.

And I made no claims for their parking arrangements. Or did I:
? Perhaps "get...airborne" was wrong as well. Is there no end...?.

A million points to me.

Anyway, thanks for the rather beautiful picture.

And I persist in finding it interesting that the aircraft we all know to be lighter than air, often isn't.

Sorry.

 
Sadurian Mike
549788.  Thu May 07, 2009 4:38 pm Reply with quote

You weren't exactly wrong ("airship" can mean an aeroplane), but around here you need about half a page of disclaimers to make any sort of statement.



You'll get used to it.

 

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