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Posted: 9/8/2010 5:59:39 AM EDT
I can.  I give you the HP 12C financial calculator.  First made is 1981 and still in production and in demand.  





Financial guys still use these all the time.  And I am useless w/o mine.






http://sliderule.mraiow.com/wiki/Hewlett_Packard_HP-12C
The HP-12C financial calculator was introduced in 1981, and is the
only one of the popular Voyager series of calculators to stand the test
of time. Currently there are three major variations of this calculator,
including the HP-12C Platinum and the HP-12C Platinum 25th Anniversary Edition.
The 12C is the only purely RPN calculator still sold by HP; the other
calculators that support RPN also support semialgebraic entry as an
optional setting.






Financial stuff baffles me. How can someone take the wonderful
set of mathematical knowledge we humans derived over the last 4000 years
and make these weird compound interest and sinking fund thingies is
beyond me. I'm sure no good will come of it. Money is the root of all
evil, after all. Anyway, for the times I get confused, there is a nice
little cheat-sheet on the reverse side.






Low-power design permits the calculator to go 6-12 months between
changes of standard, store-bought, button batteries. No more worrying
about replacing that darned custom battery pack!






 
Link Posted: 9/8/2010 6:00:05 AM EDT
[#1]
The DC-3
Link Posted: 9/8/2010 6:00:49 AM EDT
[#2]
Link Posted: 9/8/2010 6:01:18 AM EDT
[#3]
Flush Toilets.
Link Posted: 9/8/2010 6:01:28 AM EDT
[#4]
The wheel still seems pretty popular.

The .30-06 Springfield is also able to get the job done, despite new-fangled whiz-bangery.
Link Posted: 9/8/2010 6:01:30 AM EDT
[#5]
Forks
Link Posted: 9/8/2010 6:01:36 AM EDT
[#6]
Zippo lighter.
Link Posted: 9/8/2010 6:01:57 AM EDT
[#7]
The wristwatch?



Everything from manual watches to the Casio G-shock.

They've stood the test of time so well, that many many of them are re-issued or cloned or recreated in some fashion.



I can't really think of anything more significant than timepieces.
Link Posted: 9/8/2010 6:02:08 AM EDT
[#8]
1. M-2 .50 cal.

2. Also, despite numerous prophesies on the contrary, the internal combustion engine.

3. The wheel.
Link Posted: 9/8/2010 6:02:12 AM EDT
[#9]
Revolving cylinder handgun. In production since the mid 1830's and still in demand.
Link Posted: 9/8/2010 6:02:19 AM EDT
[#10]
The bucks computer!!!  I joined the Army back in 1989 as a field artillery surveyor and that little calculator right there was standard issue, LOL!


ETA: the pimp hand has stood the test of time.
Link Posted: 9/8/2010 6:02:39 AM EDT
[#11]
Link Posted: 9/8/2010 6:02:41 AM EDT
[#12]
Inclined plane, lever and pulley seem to have staying power.
Link Posted: 9/8/2010 6:02:58 AM EDT
[#13]


Radium Water still cures all that ails you and puts pep in your step!
Link Posted: 9/8/2010 6:03:01 AM EDT
[#14]
paperclips
Link Posted: 9/8/2010 6:03:29 AM EDT
[#15]
The wheel still seems pretty popular.


LOL, and hard
Link Posted: 9/8/2010 6:03:46 AM EDT
[#16]
light bulb.  150 years and not much difference in an incandescent light.
Link Posted: 9/8/2010 6:03:48 AM EDT
[#17]
Hmmmm...
Link Posted: 9/8/2010 6:04:03 AM EDT
[#18]
the plow.



the invention that allowed civilization.






Link Posted: 9/8/2010 6:04:24 AM EDT
[#19]
The Bicycle

Link Posted: 9/8/2010 6:04:38 AM EDT
[#20]
.22LR
Mauser bolt action
Kabar
Red Ryder
Link Posted: 9/8/2010 6:04:58 AM EDT
[#21]

Link Posted: 9/8/2010 6:05:05 AM EDT
[#22]
Lockheed C-130 Hercules
Introduced: December 1957
Status: In production, in service
Link Posted: 9/8/2010 6:05:21 AM EDT
[#23]
Quoted:
paperclips


Ahem.



Link Posted: 9/8/2010 6:05:56 AM EDT
[#24]
Quoted:
the plow.

the invention that allowed civilization.






Mr. Plow approves this message.
Link Posted: 9/8/2010 6:06:30 AM EDT
[#25]
-The bow and arrow: the earliest date back 64,000 years
-The knife: probably even older than the bow
-The hammer: the first one was a rock, possibly 500,000 years ago +
Link Posted: 9/8/2010 6:06:36 AM EDT
[#26]
M1911A1
Link Posted: 9/8/2010 6:07:02 AM EDT
[#27]
1911
Link Posted: 9/8/2010 6:07:03 AM EDT
[#28]
1911
B 52
Link Posted: 9/8/2010 6:07:35 AM EDT
[#29]
Link Posted: 9/8/2010 6:07:42 AM EDT
[#30]





WORD!!



 
Link Posted: 9/8/2010 6:07:57 AM EDT
[#31]



bicycle chain.


Link Posted: 9/8/2010 6:08:12 AM EDT
[#32]
Chairs.


Dare I say, sliced bread?
Link Posted: 9/8/2010 6:08:17 AM EDT
[#33]


HP 12C financial calculator??  Can't you use a pencil and paper to do the same thing?


I was gonna say, the wheel.

Also, the slide rule was used to create the SR-71 Blackbird.
Link Posted: 9/8/2010 6:08:31 AM EDT
[#34]
The hammer.
Link Posted: 9/8/2010 6:09:02 AM EDT
[#35]
The shovel and hammer.  There are faster and easier things to dig holes and drive nails with but those two will be around forever.
Link Posted: 9/8/2010 6:10:01 AM EDT
[#36]
Toilet Paper
Link Posted: 9/8/2010 6:11:10 AM EDT
[#37]
Quoted:
A billy club––you can't beat a good piece of hickory.  






Link Posted: 9/8/2010 6:11:20 AM EDT
[#38]
Leisure suits.
Link Posted: 9/8/2010 6:11:27 AM EDT
[#39]
Technology? The pencil.

Think about it.

Invention? The light bulb.

Imagine the world without artificial light.
Link Posted: 9/8/2010 6:12:47 AM EDT
[#40]
Link Posted: 9/8/2010 6:15:25 AM EDT
[#41]



Quoted:






HP 12C financial calculator??  Can't you use a pencil and paper to do the same thing?





I was gonna say, the wheel.



Also, the slide rule was used to create the SR-71 Blackbird.


Solving for i is a bitch w/ a pencil and paper.  



And I should have been more clear.  Originally, I was going to say electronics instead of technology, but I didn't want to the thread to go straight to sex toys.  



Still, good examples.



 
Link Posted: 9/8/2010 6:16:37 AM EDT
[#42]
The fork.
Swiss army knife. 1800 year old Roman version:
Link Posted: 9/8/2010 6:17:38 AM EDT
[#43]
Scissors
Link Posted: 9/8/2010 6:17:47 AM EDT
[#44]
Brewing.
Link Posted: 9/8/2010 6:18:00 AM EDT
[#45]
The nail.

Posted Via AR15.Com Mobile
Link Posted: 9/8/2010 6:18:11 AM EDT
[#46]
hammer, shovel, knife

the whacker, the digger, the cutter....

all other tools (including the plow) come from these, and they're still in use today
Link Posted: 9/8/2010 6:18:36 AM EDT
[#47]
I have an HP 12C in my pocket right now!!!  
Link Posted: 9/8/2010 6:18:52 AM EDT
[#48]



Quoted:


The nail.



Posted Via AR15.Com Mobile


The hammer is older.  You needed a hammer to make a nail.



 
Link Posted: 9/8/2010 6:19:21 AM EDT
[#49]
Hookers.
Link Posted: 9/8/2010 6:19:52 AM EDT
[#50]



Quoted:


hammer, shovel, knife



the whacker, the digger, the cutter....



all other tools (including the plow) come from these, and they're still in use today


Out of all metal implements, the hammer has always been the one tool you could make without using any others.



 
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