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Posted (edited)
6 minutes ago, Mjolnir said:

heh heh. no answer is the correct answer. Grok?

Doh!

My only excuse is that its midnight, an I was up early to watch AFL live in Australia, from the UK

I got to the right book though:yeah:

Sheesh, man, how does your mind work. No that's not the next trivia question.

Edited by hwinbermuda

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Posted
9 minutes ago, hwinbermuda said:

Doh!

My only excuse is that its midnight, an I was up early to watch AFL live in Australia, from the UK

I got to the right book though:yeah:

Sheesh, man, how does your mind work. No that's not the next trivia question.

you win if you get fredk to give up his answer. Grok?

Posted
3 minutes ago, Mjolnir said:

you win if you get fredk to give up his answer. Grok?

Not even gonna try

 

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Posted

Heinlein = best book, Grok?

I've read them all again, since I retired in December.  And, all the Sherlock Holms, and a lot of others from the wayback machine.

So much leather...so little time.

 

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Posted (edited)
11 hours ago, alpha2 said:

An airplane flies from point A to point B at 100 knots airspeed. It is flying into a 10 knot headwind. Then, it flies back to point A at 100 knots airspeed, with a 10 knot tailwind. Will it make up the time it lost flying into the headwind, when it returns with the tailwind?

yes , although the air speed is the same, the ground speed is different; going A-B the ground speed is 90 knts, going from B-A the ground speed is 110 knts.

T'was one of the first basic questions at navigators classes  in RAF. Then it got more and more complicated; air pressure at various heights, different cross winds, fuel consumption of a Buccaneer S2B in lbs per minute. Got through it all.

Answer to Viking puzzle later...............maybe

Edited by fredk

Al speling misteaks aer all mi own werk..

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Posted (edited)
4 hours ago, Mjolnir said:

so this is why a plane can take off from a stationary position on a treadmill?

No, but its why an aeroplane can take off from a ship; take a WW2 type, nominal take off speed was around 70 to 80 knts air speed. An aircraft carrier steams into wind at 20 knts, wind speed is 15 knts = 35 knts along the deck, WW2 fighter just needs to accelerate to ship deck speed of 45 knts to get to take off speed of 80 knts a/s

Edited by fredk

Al speling misteaks aer all mi own werk..

Posted
12 hours ago, fredk said:

yes , although the air speed is the same, the ground speed is different; going A-B the ground speed is 90 knts, going from B-A the ground speed is 110 knts.

T'was one of the first basic questions at navigators classes  in RAF. Then it got more and more complicated; air pressure at various heights, different cross winds, fuel consumption of a Buccaneer S2B in lbs per minute. Got through it all.

Answer to Viking puzzle later...............maybe

Wait, when you say "yes", are you saying you WILL make up the time? If so, try again.

Jeff

So much leather...so little time.

 

Posted
On ‎1‎/‎04‎/‎2018 at 6:14 AM, Mjolnir said:

what is the greatest book ever written by  Robert Heinlien?

'Time enough for love'.

'The cat who walk through walls' is a close second.

Kindest regards

Brian

 

"Whether you think you can or whether you think you can't, you are right"  Henry Ford

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Posted

Agree, ‘time enough for love’, but ‘Behold the Man’ (Michael Moorcock, not my fave writer), is apt for this time of year.

 

“Equality?   Political correctness gone mad, I tell you, gone mad!!!!    Next they'll be wanting the vote!!!!! :crazy:“.

Anger and intolerance are the enemy of correct understanding

Posted

OK silly one for now

In which state is it legal for a man to marry his widow's sister?

Harry

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