* Posts by harmjschoonhoven

512 posts • joined 3 Sep 2012

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TWELFTH-CENTURY TARDIS turns up in Ethiopia

harmjschoonhoven
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RE: 106 BBC programmes have been unearthed

The BCC apparently has 106 40+ year old videotapes labeled "Dr Who".

If they can find equipment to run the tapes - The Center for Art and Media in Karlsruhe may be a good start -, the tapes may well turn out to be unplayable and/or disintegrate at the first attempt to digitise them.

Conservation of magnetic tape is a serious problem. According to Sarah Everts

(New Scientist, 24 Aug 2013) some 200 million hours of culturally valuable audiovisual content is in danger of disappearing entirely.

May be we should equate digitising analog videotapes with baking Babylonian clay

tablets by accidental fire which conserved them for millennia.

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Dutch oven overcooked in World Solar Challenge

harmjschoonhoven
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@Richard Wharram RE: "vapor-driven vessel of low-countries origin"

Something like

http://www.liedjesland.com/Liedjes/Sinterklaas/ZieGindsKomtDeStoomboot/ZieGindsKomtDeStoomboot.htm

?

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Down with Unicode! Why 16 bits per character is a right pain in the ASCII

harmjschoonhoven
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Megaphone

Re: The historical accident of little-endian

Arabic text is written right-to-left, but numbers are written left-to-right

in the opposite direction of the script (Teach yourself Arabic by J.R. Smart, page 33).

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Leaked docs: NSA 'Follow the money' team slurped BANK records, CREDIT CARD data

harmjschoonhoven
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Re: More proof

Osama bin Laden was not a goat farmer.

The bin Laden family made $5 billion in the construction industry, of which Osama later inherited around $25-30 million.

Upvoted you anyway.

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Enterprise storage: A history of paper, rust and flash silicon

harmjschoonhoven
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Boffin

Stop that tape

HP mini's, I worked with in the 1970's, used 8-bit paper tape.

The reader could scan the tape at full speed and halt at a given byte by activating a magnetic clamp.

Given the kinetic energy of the moving tape and the speed of the action working on a small area the paper should be scorched.

What in stead happened was that the tape was clamped and a pair of shockwaves was send through the tape which dissipated without damaging the tape.

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MYSTERY of Guardian mobos and graphics cards which 'held Snowden files'

harmjschoonhoven
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Headmaster

Re: Turing turning in his grave

@Lee D

Alan Turing was cremated at Woking Crematorium on 12 June 1954. Turing's ashes were scattered there. Otherwise Turing has plenty of reasons to turn in his grave

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Why data storage technology is pretty much PERFECT

harmjschoonhoven
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Facepalm

Not so random errors

In the 1990s the Dutch retail chain "Kruitvat" sold low-cost recordable CDs.

When a colleague showed me the physical location of the sectors where error correction was necessary a few months after recording, I could read "Kruitvat", exactly matching the logo proudly printed on the CD in the wrong kind of ink.

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Your own £19 Pocket Spacecraft could be FOUND ON THE MOON

harmjschoonhoven
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Stop

Littering the Moon

NASA uses a variety of methods to measure, control and reduce spacecraft microbial contamination for planetary protection purposes. http://planetaryprotection.nasa.gov/methods

I am afraid that the PocketSpacecaft project as proposed will upset the delicate microbial balance on the Moon.

http://t0.gstatic.com/images?q=tbn:ANd9GcTjQeELPI2HojUF8F69bJQrK0qLNhqRgpIC318bzqdj9zegjP5Naw

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Tickle my balls, stroke my button and blow the fluff from my crack

harmjschoonhoven
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There is a story that a class of KLM stewardesses, first confronted with a computer mouse (I personally know a KLM stewardess who is quite familial with the animal variant, al least her cat is) tried to move them over the screen like a lightpen, a device predating the mouse.

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NASA to flip ion engine's 'OFF' switch after brilliant 5.5 year burn

harmjschoonhoven
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Happy

Re: Thanks NASA

Well, due to the rotation of The Galaxy alone NEXT and earth with it moved 43200 million km in 48 kh.

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How Alan Turing wanted to base EDSAC's memory on BOOZE

harmjschoonhoven
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Boffin

Re: Then there is another problem...

Hb. Chem.& Phys. 53rd Ed., E41 gives the velocity of sound in m/s at 25+t°C as:

Ethanol: 1207-4.0t

Water (distilled): 1496.7+2.4t

--> 37.5% ethanol, 62.5% water 1388+0t (estimated)

So Turing was right. Gin (and Vodka) are OK. Vermouth (16-18% ABV) won't work in a delay line.

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Young blokes blinded by video-game addiction: THE FACTS

harmjschoonhoven
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Boffin

Re: Cause and effect?

We need a double-blind test - definitely.

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How NSA spooks spaffed my DAD'S DATA ALL OVER THE WEB

harmjschoonhoven
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Holmes

The usual suspects.

Bytes 1274 to 1320 of http://regmedia.co.uk/2013/06/12/prism_slide.jpg (the first picture of the post) read

"Copyright 2007 Apple Inc., all rights reserved."

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Boffins build gesture recognition using WiFi

harmjschoonhoven
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Re: Two weak spots

@Graham Dawson

Please, do not compare the WiSee technology, impressive as it is, with a modern radar system like that of the S-300.

http://en.wikipedia.org/wiki/S-300_%28missile%29

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harmjschoonhoven
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FAIL

Two weak spots

1)

"You always perform a startup sequence of gestures to get into the control system before sending the real gesture commands. The startup squence (sic) could be relatively long so false positives become rare cases. Such a startup sequence can also serve as your personal password."

There is no way to see you entered the RIGHT startup sequence before you send the commands, in particular if you are not in the same room as the WiSee enabled Wi-Fi router.

2)

"WiSee technology uses multiple antennas to focus on one user to detect the person's gesture."

There is no way to track a person.

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Film crew plans dig to find lost burial ground of Atari's E.T.

harmjschoonhoven
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Mushroom

Don't dig in the desert

" \"I hope more people find out about Alamogordo through this opportunity that we have to unearth the Atari games in the landfill,\" Alamogordo mayor Susie Galea said."

I thought Alamogordo was already worldfamous/notorious by the Pu239 from the Trinity test burried there.

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Herschel Space Observatory spots galaxies merging

harmjschoonhoven
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Boffin

Re: Give way to whoever's biggest.

Galaxies do not have to give way. They just attract each other - gravity you know - and merge.

Cars, other vehicles and pedestrians get their shape from electromagnetic forces and do not merge.

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It! Started! With! A! GIF!... Yahoo! Actually! Buys! Tumblr! for! $1bn!

harmjschoonhoven
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Go

Tulip mania

Tulipomania is small fish compared to trading a company with 178 employees, including the cat, for 1100000000.00 USD.

http://en.wikipedia.org/wiki/Tulipmania

Even in capital intensive petrochemical industry investments are in general below 1 million USD per employee.

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Sun lets loose with THREE record eruptions in 24 hours

harmjschoonhoven
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Unhappy

Re: youtube ywfewbzmvrw

No in-picture timestamps (with eight minute ambiguity of course).

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Degenerate dwarfs tear neighbors limb from limb

harmjschoonhoven
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@ShelLuser

There are no molecules at a WD, that severely restricts the choice of medicines.

Only elemental iodine as a disinfectant comes to mind.

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'Liberator': Proof that you CAN'T make a working gun in a 3D printer

harmjschoonhoven
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Black Helicopters

Re: But...but....

From the Dutch law on firearms (Wet wapens en munitie, translated):

"Category I 7° other objects that can form a serious personal threat as indicated by Our Minister or that look like a weapon appropriate for threat or extortion."

So no need for a Liberator here, just print your Walther P5 in soap and paint it black.

BTW the Liberator seems as good as the gun that exploded and killed James II of Scotland at the siege of Roxburgh in 1460.

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INSATIABLE black hole in Milky Way's heart crams hot gas into cavity

harmjschoonhoven
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Unhappy

Bootnote

The <real> news is the death of Herschel.

http://www.esa.int/For_Media/Press_Releases/Herschel_closes_its_eyes_on_the_Universe

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NORKS powers down whole towns to find pirates

harmjschoonhoven
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Re: Surely that's untrue?

Can't you open most DVD-players with a paperclip and hide the contrabande?

Wait, in the DPRK the only people who have ever seen, let alone bend, a paperclip are probably army generals or nuclear engineers.

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Ban drones taking snaps of homes, rages Google boss... That's HIS job, right?

harmjschoonhoven
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Headmaster

Re: OK...translation.

Obersturmbannführer (as in "Banner") not Übersturmbahnführer (as in "Eisenbahn").

See http://de.wikipedia.org/wiki/Sturmbannf%C3%BChrer. Upvoted you anyway.

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Space elevators, vacuum chutes: What next for big rocket tech?

harmjschoonhoven
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Facepalm

Re: Feasible Space Elevators

Designers of Space Elevators should not ignore the Coriolis-force, unless they are writing a work of fiction.

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Kissinger and tell: WikiLeaks scrapes 1.7m US diplomatic reports from the '70s

harmjschoonhoven
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Happy

Re: Old news

Although (re)reading I.F. Stone's "The Hidden History of the Korean War" is very interesting.

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iPads in education: Not actually evil, but pretty close

harmjschoonhoven
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Happy

Re: I tried painting on an iPad - turned out to be load of Pollocks!

You should have sold the iPad at auction.

From http://en.wikipedia.org/wiki/Jackson_Pollock:

In November 2006, Pollock's No. 5, 1948 became the world's most expensive painting, when it was sold privately to an undisclosed buyer for the sum of $140,000,000.

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Researcher sets up illegal 420,000 node botnet for IPv4 internet map

harmjschoonhoven
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Re: Researcher sets up botnet

Installing software on a system you do not know and execute it on said system of which you do not know the purpose is a crime FULL STOP

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Are your servers PETS or CATTLE?

harmjschoonhoven
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Stop

Re: when they get ill, you get another one

Cattle get more care than dogs and cats that are dumped by their owners when they go on holiday. After all they are the farmers capital and are given names like "Betsy24" - at least in Holland.

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Indian atomic boffins draw up plans for 50,000 TONNE magnet

harmjschoonhoven
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FAIL

Re: I had visions of...

The INO magnet will be housed 1300 meters below the carpark.

Moreover the Tata Nano has an aluminium engine ....

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Is world's first space tourist Dennis Tito planning a trip to Mars?

harmjschoonhoven
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Meh

Re: He isn't walking on Mars...

Why not just send a couple of radiationhardened ants on a flyby around Mars?

They 'll inherit the earth anyway.

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Curiosity photographs mysterious metal object on Martian rock

harmjschoonhoven
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Meh

Re: Original Image

http://curiosityrover.com/imgpoint.php?name=0173MR0926020000E1_DXXX shows that the image covers the path taken by Curiosity.

The object seems to be something the rover 'lost', deliberately or otherwise.

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Google exec defends search snooping, location tracking

harmjschoonhoven
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@TAGK

Citation needed.

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Ten 3D printers for this year's modellers

harmjschoonhoven
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Re: Cost

The problem is mass production: in 1986 the price of a Canon PJ-1080A Colour Ink-Jet printer (Made in Japan) was 2644.18 Hfl., incl. 19% VAT (equivalent to 1199.88 Euro).

The serial number of my PJ-1080A is 801057, but I doubt whether 801057 printers were made. The resolution was only 85 dpi.

May be converting it to a 3D-printer is a nice hobby project.

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Chinese boffins crack cloaking tech for camouflage

harmjschoonhoven
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FAIL

Re: Bend light here and hey presto, your aircraft becomes a bird

The research paper mentioned describes calculations for a model working at a single microwave frequency ("wavelength 30mm at the frequency of 10 GHz."). No physical experiments were involved.

Jie Sun et al., "Large-scale nanophotonic phased array" http://www.nature.com/nature/journal/v493/n7431/full shows a more interesting innovation from MIT in Cambridge Mass. working at optical wavelengths.

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Viruses infect vital control systems at TWO US power stations

harmjschoonhoven
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Megaphone

Re: @Destroy All Monsters

@ItsNotMe

One backup is no backup.

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Ten stars of CES 2013: Who made the biggest splash?

harmjschoonhoven
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Thumb Up

Re: Ultra HD ≠ "4K" (3840×2160)

On IBC 2011 NHK (Japan Broadcasting Corporation) had a demo of their Super Hi-Vision system (7680x4350 pixels, intended horizontal viewing angle 100°).

I was impressed and thought I saw the future of TV.

However when I compared the image on the 85 inch LCD with the lady in front of the camera, I noticed that the colour reproduction, especially of skincolour, was very poor.

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First rigid airship since the Hindenburg enters trials

harmjschoonhoven
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FAIL

Re: 'rare and expensive helium'

"Hydrogen has twice the lifting capability [of helium] (H2 molecules are nearly twice the volume, and only half the mass)."

1) The lifting capacity is the difference between the density of air and the density of the lifting gas.

Hydrogen: 1.293-0.0899= 1.2031 kg/m3

Helium: 1.293-0.1785= 1.1145 kg/m3

(at 1 bar, 0° C)

2) The volume of H2 molecules is irrelevant. The number of molecules present in equal volumes of gases at the same temperature and pressure are equal (Avogadro's principle).

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She's a beauty! Super WATER-RICH Mars rock FOUND

harmjschoonhoven
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Pint

Re: Planet of...

Alcohol in space!

The detection of hot ethanol in G34.3+0.15 MNRAS, Volume 273, Issue 1, pp. 25-29 (1995).

Read at http://articles.adsabs.harvard.edu/cgi-bin/nph-iarticle_query?bibcode=1995MNRAS.273...25M&db_key=AST&page_ind=0&data_type=GIF&type=SCREEN_VIEW&classic=YES

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The amazing magical LED: Has it really been fifty years already?

harmjschoonhoven
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Boffin

Re: I'm waiting for the black LED

The black LED does not exist as it requires a radiating body at 0 K, which is impossible.

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Boffins build elastic wires with liquid metal

harmjschoonhoven
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Boffin

Re: resistance

Does anyone remember mercury?

Fill a rubber tube with mercury and stretch it. Measure the electric resistance and you know the length.

Used to have some interesting applications in medical research.

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UK cops: How we sniffed out convicted AnonOps admin 'Nerdo'

harmjschoonhoven
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Facepalm

Re: AC@13:46

You forgot the ignition coil between the car battery and the genitals.

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Three little words stall UN's 'bid for INTERNET DOMINATION'

harmjschoonhoven
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Megaphone

Re: three little words

"The traditional standard of clarity of a language is a cultural inheritance which should be carefully guarded. Language is one of the most important institutions of social life, and its clarity is a condition of its functioning as a means of rational communication." The open Society and its enemies by K.R. Popper (1945), Ch 12 note 30.

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Revealed: The Brit-built GRAVITY-powered light that costs $5

harmjschoonhoven
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FAIL

Re: Keep it going!

The nuclear energy of the sun comes from the fusion of hydrogen to helium .

The gravity of the sun with its mass of 1.989 10^33 g only provide the natural conditions for that to happen.

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harmjschoonhoven
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Re: Nice

The gears of a "knijpkat" - literal translation: "squeezecat" - make a sound not unlike the purring of a cat (Felis Catus).

On top of my "knijpkat" is imprinted: "MADE IN HOLLAND - IMPORTE DE HOLLANDE - TYPE 7424-03 - 2.5 VOLT - 0.1 A" with the Philips logo, the one with double-cross on either side of the channel, in the middle.

Modern versions with 3 LEDs, a rechargable battery and a crank are available (Made in China). Their plastic gears make a softer sound than the 1940's "knijpkat" made of steel and pertinax.

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Behold ATLAS, the fastest computer of 50 years ago

harmjschoonhoven
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Happy

Re: What are the specs?

The instruction set can be found here:

http://www.cs.ucf.edu/courses/cda5106/summer03/papers/mark1.atlas.1.pdf

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harmjschoonhoven
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FAIL

Re: Compute time was billed at around £750-800 per hour

"The word you're looking for is "computer", which is a noun."

In the pre-electronic time a "computer" was a lady with a quill pen. At Harvard College Observatory they ware paid $0.25 to $0.35 per hour in the 1920s.

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Explosion of DANGEROUS IT GEAR injures and CRIPPLES MEDICS

harmjschoonhoven
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Re: I'll get downvoted, but...

The problem is, if you use Dvorak over the weekend, you 'll have to adjust to Qwerty on Monday morning.

As far as I remember the Dvorak keyboard was successfully tested on a US battleship.

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