39 posts • joined 12 Jul 2008
Re: Laserscan HRD-1
> Greyhawk Soft Plotter
Interesting. In the early 80's LSL worked with RSRE Malvern on similar technology. I remember the locked room with the infra-red lasers well: goggles and lots of warning notices. "Do not stare into laser beam with remaining eye" isn't applicable when you can't see the beam.
Re: Laserscan HRD-1
> "Spot size: 200 microns (on screen?)"
> The brochure claims 20 micros. 5000x 7000 pixels. That's laser printer territory (in 1973 !).
I think the 20 microns quoted was on the photochromic film, then a 10x ,magnification when projected onto the screen.
> huge storage issue
> what happened to LS?
LSL had a vector approach to drawing and digitising. Once chips became cheap enough, you could just scan the whole document into memory in one go and throw computing power at it. PGH's web page I quoted above has a history of the company. Note the famous people that came to visit: Prince Philip, Maggie T
With the exception of lasers (replaced by limelight and lenses?) and the speed advantage of electronics, a lot of the early 1970's Laserscan HRD-1 could be replicated using steampunk technology.
Here's a link to a brochure:
A blue argon-ion laser was reflected by two large steerable mirrors set at 90° and then off two very small galvanometer mirrors (used for small movements and to compensate for the inertia of the large mirrors) onto a 100 by 70 mm area on a long roll of photochromic film. The was then projected at 10 times magnification onto a screen. Black lines appeared on an orange background. To erase, you wound the roll of film on one frame. By the time you got to the end, the first frames had faded back to clean orange.
User display: 1 metre by 0.7
addressability on screen: 50k by 35k
Spot size: 200 microns (on screen?)
Re: Why go to Norway ?
Why not use Woomera?
is *so* 1950's
Lorenz, the Butterfly Effect and Chaos Theory
Old news: Edward Lorenz discovered that floating point truncation causes weather simulations to diverge massively back in 1961. This was the foundation of Chaos Theory and it was Lorenz who coined the term "Butterfly Effect"
Instead of starting the whole run over, he started midway through, typing the numbers straight from the earlier printout to give the machine its initial conditions. Then he walked down the hall for a cup of coffee, and when he returned an hour later, he found an unexpected result. Instead of exactly duplicating the earlier run, the new printout showed the virtual weather diverging so rapidly from the previous pattern that, within just a few virtual "months", all resemblance between the two had disappeared.
Add two zeros so it's in cents, then convert to hex. Ooh look - top bit set, lots of zeros and presumably his real balance is $41.92
echo "16o 92,233,720,368,547,80000p" | sed 's/,//g' | dc
Archiving the web site won't pick up the details of the algorithm used by their search engine though
Definitely something odd going on
I've seen three different accounts compromised in the past few days: two members of a caving club, one member of a mountaineering organisation. No mobile app or Apple hardware involved in at least one of them. I'm wondering whether being a member of a Yahoo! group might be a common factor.
Correlation between autism and organic food sales
Are the cracks wider than a mile?
Re: Can anyone say "Thunderbirds"?
Typical BT, don't care so long as they profit
They make money from these features being ordered, so why should they care?
Nothing has changed from the days when all BT Cellnet asked for was a credit card number + expiry date to top up a PAYG phone, giving rise to the inevitable fraud. If someone didn't question the £30.00 charge on their card, it was all pure profit for IT.
Charlie Ergen owns both Dish and Hughesnet
> [dishNET] will compete with HughesNet
Dish and Echostar are both owned by Charlie Ergen. Echostar bought Hughes Communications, of which
Hughes Network Systems is a subsidiary, in 2011.
Re: Council statement is here
> "national press headlines which have led catering staff to fear for their jobs"
I predict the Council is now going to be deluged with Freedom of Information requests
Netcraft and the Full Disclosure mailing list hit
The mail servers for both Netcraft and the Full Disclosure mailing list have IP addresses that did not resolve during the outage
About time too
Checking back through my logs, I found this in my spam folder, sent in June last year to a unique e-mail address used only for eHarmony. Odd that a 419 scammer should have ended up with it.
I'm sure there are other crooks out there to whom it would have been far more valuable.
From info <at> freelotto.co.uk Thu Jun 9 03:17:13 2011
Received: from EXFE02.easyxchange.co.uk (ex01.easyxchange.co.uk [126.96.36.199]) by xxx (Postfix) with ESMTP id 112086608F for <UNIQUE Eharmony ADDRESS>; Thu, 9 Jun 2011 03:17:07 +0100 (BST)
Received: from User ([188.8.131.52]) by EXFE02.easyxchange.co.uk with Microsoft SMTPSVC(6.0.3790.1830); Thu, 9 Jun 2011 03:15:51 +0100
From: Free Lotto Company <info <at> freelotto.co.uk>
Subject: CLAIM YOUR 2011 AWARD OF 4MILLION GBP
Date: Thu, 9 Jun 2011 03:17:02 +0100
Congratulation,You have therefore been qualified for a lump sum payout of
4,000,000.00 (Four Million British Pounds) in cash In your favor, To
redeem your prize instantly,you are to contact your Lottery Agent
Never underestimate the bandwidth of a station wagon full of tapes hurtling down the highway
Flying robot quadrotors
Two years ago Garmin had similar problems
Y2.01K hits Garmin satnav
Garmin's Geko 201 GPS kit can't decide what year it is, flipping between decades every time it's switched on, though it's performing better on days of the week.
Could this be related to the thousands of spoofed midnight phone calls last week?
Thousands of Brits bombarded in caller spoofing riddle
Some may not may personal data; mine definitely is
$ host 184.108.40.206
220.127.116.11.in-addr.arpa domain name pointer wylie.me.uk.
$ whois 18.104.22.168
inetnum: 22.214.171.124 - 126.96.36.199
descr: Mr Alan J. Wylie
And anyone that claims otherwise is a clueless muppet.
RevK of Andrews and Arnold noticed a definite spike:
"Internet traffic last night from around 18:45 to midnight was at unprecedented levels"
There's a plugin for Firefox that "implements ''pinning'' for Firefox/Mozilla/SeaMonkey roughly as now recommended in the User Interface Guidelines of the World Wide Web Consortium (W3C). "
Certificate Patrol: http://patrol.psyced.org/
My mother had tales to tell of sitting on top of a hydrogen cylinder in Sheffield inflating a barrage balloon during WWII.
> We're are not, under any circumstances – except possibly the complete
> exhaustion of the world's supplies of helium – going to touch hydrogen
> with a long, flameproof stick. Let that be an end to the matter.
Number one google hit for ...
"Commemorative Royal Wedding Ring"
The current Dilbert cartoons are rather appropriate , starting at http://www.dilbert.com/2011-02-23/
Price is now £117.00
Wednesday morning and the price now seems to be £117.00
Dilbert and Quikprotect
Dilbert once wrote some software called "Quikprotect".
Another related story
Those who cannot remember the past are condemned to repeat it
Belkin tried the same thing with their routers many years ago, and also suffered for their mistake
Pykrete and Mulberry Harbours
Floating landing strips should be made from Pykrete, Modular Harbours from concrete.
> There is no computer interface on the 101, so how Garmin are going to fix this I don't know
They have offered to upgrade to a 301 for £50.00
I only really use the GPS for two things: how far I have to trudge back to the car at the end
of the day, and in case of emergency. If I'm in a whiteout on the summit of the Ben and I'm trying
to get to the top of the zig-zags at NN 1565 7131 whilst avoiding Five Finger Gully, I don't
want to be wondering if my GPS had decided to throw a wobbly, so despite having been made
redundant a fortnight ago I think I'll be taking up the offer.
Re: Updates via downloads
Not only do you have to own a computer, but Garmin expect you to be running a supported OS and browser.
| Compatible computers and Internet browsers:
| IBM-compatible PCs running Windows® XP or Vista operating systems
| with Internet Explorer 6+ or Firefox 1.5+
| Intel-based or PowerPC G3 or later Mac OS 10.4 or later with Firefox 2.0+ or Safari 2.0+
Geko 101 as well
My Geko 101 is showing similar symptoms. On power on the date/time flicker rapidly between
several dates in the past, it took ages to lock on to 4 satellites, and the time is now being shown
as 14:48:57 24-Apr-08 (actual is Mar 10 12:50:34 GMT 2010)
Position is correct.
There is no computer interface on the 101, so how Garmin are going to fix this I don't know
Bang Goes the Theory
But can it blow a house of straw/sticks/bricks down?
Anybody remember NTK's Widdecombe of the week?
URL manipulation of this sort has been around for ages - NTK was doing it back in 2001
- Vid Hubble 'scope scans 200,000-ton chunky crumble conundrum
- Bugger the jetpack, where's my 21st-century Psion?
- Google offers up its own Googlers in cloud channel chumship trawl
- Interview Global Warming IS REAL, argues sceptic mathematician - it just isn't THERMAGEDDON
- Windows 8.1 Update 1 spewed online a MONTH early – by Microsoft