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Useless (but interesting) trivia

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lacanteen

lacanteen

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There's no $ symbol on the dollar bills.

(And, I'll bet most of you will look to verify)
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Norm Peterson

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In the 1968 sci-fi classic "2001, A Space Odyssey", the computer's name was (in part) H.A.L.

Each of those letters is just one letter down from 'IBM'.


Norm
 

Norm Peterson

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What are these "bills" that you speak of? Are they made by Visa or MasterCard?
No, I think they're the kind that can be folded flat on themselves without cracking, are immune to magnetic fields and electronic fraud, and within certain limits leave no trace of their use.


Norm
 

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No, I think they're the kind that can be folded flat on themselves without cracking, are immune to magnetic fields and electronic fraud, and within certain limits leave no trace of their use.


Norm
Thanks Norm, now I remember. Think we used those back in the 20th Century!
 
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HoosierDaddy

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You would be standing in 24 time zones but the word ALL could be misconstrued which BTW is my purpose in life. But I digress. There are more than 24 time zones. One example is the Newfoundland time zone. And you would also be in those other time zones as well as the hour apart ones most of us spend time in.

You can call me megauseless!
 

whoa there

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a top fueler only does about 550 Revolutions while traveling down the track.

In an NHRA Top Fuel dragster or funny car, with 3000 CFM of air being rammed in by the supercharger on overdrive, the fuel mixture is compressed into a near-solid form before ignition. Cylinders run on the verge of hydraulic lock at full throttle.
Reminds me of this paper


TOP FUEL ACCELERATION PUT INTO PERSPECTIVE



Top Fuel dragsters are the quickest accelerating racing cars in the world and the fastest sanctioned category of drag racing, with the fastest competitors reaching speeds of 335 miles per hour (539 km/h) and finishing the 1,000 foot (305 m) runs in 3.64 seconds. Here are some fuel facts.
* One Top Fuel dragster 500 cubic-inch Hemi engine makes more horsepower (11,000 HP) than the first 4 rows at the Daytona 500.
* Under full throttle, a dragster engine consumes 11.2 gallons of nitro methane per second; a fully loaded 747 consumes jet fuel at the same rate with 25% less energy being produced.
* A stock Dodge Hemi V8 engine cannot produce enough power to merely drive the dragster's supercharger.
* With 3000 CFM of air being rammed in by the supercharger on overdrive, the fuel mixture is compressed into a near-solid form before ignition. Cylinders run on the verge of hydraulic lock at full throttle.
* At the stoichiometric 1.7:1 air/fuel mixture for nitro methane the flame front temperature measures 7050 degrees F.
* Nitromethane burns yellow. The spectacular white flame seen above the stacks at night is raw burning hydrogen, dissociated from atmospheric water vapor by the searing exhaust gases.
* Dual magnetos supply 44 amps to each spark plug. This is the output of an arc welder in each cylinder.
* Spark plug electrodes are totally consumed during a pass. After 1/2 way, the engine is dieseling from compression plus the glow of exhaust valves at 1400 degrees F. The engine can only be shut down by cutting the fuel flow.
* If spark momentarily fails early in the run, unburned nitro builds up in the affected cylinders and then explodes with sufficient force to blow cylinder heads off the block in pieces or split the block in half.
* Dragsters reach over 300 MPH before you have completed reading this sentence.
* In order to exceed 300 MPH in 4 seconds, dragsters must accelerate an average of over 4 G's. In order to reach 200 MPH well before half-track, the launch acceleration approaches 8 G's.
* Top Fuel engines turn approximately 480 revolutions from light to light!
* Including the burnout, the engine must only survive 900 revolutions under load.
* The redline is actually quite high at 9500 RPM.
* THE BOTTOM LINE: Assuming all the equipment is paid off, the crew worked for free, & for once, NOTHING BLOWS UP, each run costs an estimated $1,000 per second.
0 to 100 MPH in .8 seconds (the first 60 feet of the run)
0 to 200 MPH in 2.2 seconds (the first 350 feet of the run)
6 g-forces at the starting line (nothing accelerates faster on land)
6 negative g-forces upon deployment of twin ‘chutes at 300 MPH An NHRA Top Fuel Dragster accelerates quicker than any other land vehicle on earth . . quicker than a jet fighter plane . . . quicker than the space shuttle.
The current Top Fuel dragster elapsed time record is 3,628 seconds for the 1000' track (2018, Clay Millikan). The top speed record is 336.57 MPH as measured over the last 66' of the run (2018, Tony Schumacher).
Putting this all into perspective:
You are driving the average $140,000 Lingenfelter twin-turbo powered Corvette Z06. Over a mile up the road, a Top Fuel dragster is staged & ready to launch down a quarter-mile strip as you pass. You have the advantage of a flying start. You run the 'Vette hard up through the gears and blast across the starting line & pass the dragster at an honest 200 MPH. The 'tree' goes green for both of you at that moment.
The dragster launches & starts after you. You keep your foot down hard, but you hear an incredibly brutal whine that sears your eardrums & within 3 seconds the dragster catches & passes you.
He beats you to the finish line, a quarter-mile away from where you just passed him. Think about it - from a standing start, the dragster had spotted you 200 MPH & not only caught, but nearly blasted you off the road when he passed you within a mere 1000 foot long race!
That's acceleration!
 

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Balr14

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Not the first time I've seen this, won't be the last. I enjoy reading it every time.
I drove a dragster for a few weeks back in the 60s. How that came about is an interesting story. Anyway, dragsters in the 60s ran 7 seconds in the 180s. The engines were in front of you and you sat over the differential. That whole experience was scary enough, no way I wanted to go faster or do this on a regular basis.
 

HoosierDaddy

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I drove a dragster for a few weeks back in the 60s. How that came about is an interesting story. Anyway, dragsters in the 60s ran 7 seconds in the 180s. The engines were in front of you and you sat over the differential. That whole experience was scary enough, no way I wanted to go faster or do this on a regular basis.
I know many people who jump out of planes insist on packing their own shutes. Did you allow anyone else work on the diff?
 

Sivi70980

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The German ww2 battleship Bismarck is one of If not the only ship to be called he rather than she by her, make that his captain and crew. The captain of the ship Lindemann said a ship named after Otto von Bismarck was too powerful a ship to be called a she.
The band Sabaton made a great song about the Bismarck too.
 

Norm Peterson

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The band Sabaton made a great song about the Bismarck too.
Very good, and surprisingly detailed about the combined effort involved.


For me, "Sink the Bismarck" has always been a Johnny Horton song (circa 1960, so no neat video). Johnny also sang "The Battle of New Orleans" and "The Sinking of the Reuben James".


Norm
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