David has just taken delivery of a 1TB drive at work. We wondered how long it would take to read a TB disk full of (uncompressed ascii) text. Here are our back-of-the-envelope calculations:
1TB =
10^12 bytes =
8 * 10^12 bits =
1.14 * 10 ^12 characters [1] =
1.9 * 10^11 words [2] =
950,000,000 minutes[3] =
1,806.22 years [4]
[1] Assume 7 bits per ascii character (using the basic subset of 128 7 bit characters)
[2] Assume an average of 6 characters per word
[3] Assume a 200 wpm reading speed
[4] That's reading 24*7*364.25 But give yourself an 18 minute break to account for the accumulated leap seconds
As of May '09, the US Library of Congress has accumulated 100 TB of data. I'm assuming that's not all ascii text though
Friday, September 18, 2009
Auntie Em gets vertigo:
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7:23 AM
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Thursday, September 03, 2009
Just had my mind blown...
by this passage in Numbers are associated with different types of spatial information depending on the task van Dijck, Gevers and Fiasa
"When patients neglecting the left side of perceptual space bisect physical lines, they typically shift the subjective midpoint towards the right. Similarly, when indicating the midpoint of a numerical interval (e.g. what is in the middle between 1 and 9?) they overestimate the midpoint (e.g. 7)."
(Emphasis mine!)
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Auntie Em
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9:29 AM
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Labels: clever folk, Perception, Science
Monday, August 10, 2009
Time to get me another doctorate:
From the Southern Evangelical Seminary this time!
This is the D.Min. course. You have four things to do: (1) take the final exam (worth 30% of your grade); (2) write a 1,500- to 2,000-word critical review of Francis Collins’s The Language of God -- for instructions, see below (20% of your grade); (3) write a 3,000-word essay on the theological significance of intelligent design (worth 30% of your grade); (4) develop a Sunday-school lesson plan based on the book Understanding Intelligent Design (worth 20% of your grade).
Wow - no research, no critical thinking and no pesky originality needed. With a coursework submission date of August 14th I could be a double doctor by September I'm sure. If I could just fight down my gag reflex long enough!
UPDATE: tee hee - it gets better. From the takehome exam:
This exam is open-book, but you must limit yourself to the six books read in class.
Excuse me - I think I just threw up a little in my mouth.
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Auntie Em
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12:02 PM
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Labels: not so clever folk
Thursday, July 16, 2009
Wednesday, July 08, 2009
Fun with Digital Projectors
I first saw this video of Peter Greenaway's projection onto Da Vinci's "Last Supper" about a year ago. I'm still astounded by it every time I see it:
Then today I saw this projection by Apparati Effimeri on the side of the Malatestiana castle in Cesena, Italy. Have a look at 2'15" and 3'30". Pink Floyd video much?
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Auntie Em
at
9:38 AM
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Labels: clever folk, Cool Toys
Monday, July 06, 2009
"So obviously far from any known terrorism profile"
Lord Carlile's otherwise encouraging review of the anti-terrorism laws contains one rather odd finding.
According to the Guardian
"The latest police figures show that 117,278 people were stopped under section 44 in 2007-08, of whom 73,967 were white, 20,768 were Asian and 15,218 black."
Lord Carlile points to these stop and search statistics as evidence that some people are being pulled over to 'balance the books.'
"I have evidence of cases where the person stopped is so obviously far from any known terrorism profile that, realistically, there is not the slightest possibility of him/her being a terrorist, and no other feature to justify the stop."
He describes his own experience of stop ans search "sinister" and "intimidating" and told Radio 4's Today Program:
"I'm a grey-to-brown-haired white male, I'm 5ft 10 ins tall, looking extremely conventional."
Neil Lewington is another chap that fits that description. On the 29th of June he was arrested on an unrelated matter (abusing a train conductor) and turned out to be carrying "viable, improvised incendiary devices," to target "non-British" people.
The police are now warning that the is an increased threat of right wing bombings after "England’s largest seizure of a suspected terrorist arsenal since the IRA mainland bombings of the early 1990s."
Lord Carlile's position, stop and search is ok as long as it is targeted at those who "look like" terrorists, is nonsense on the face of it: you can't tell by looking who the terrorists are. One of them might well be a "grey-to-brown-haired white male... 5ft 10 ins tall, looking extremely conventional."
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Auntie Em
at
4:14 PM
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Labels: Politics
Monday, June 29, 2009
Protest is not a criminal offence...
...official.
'The report describes the policing of the G20 protests as a "remarkably successful operation"... "Aside from a few high-profile incidents, the policing of the G20 protests passed without drama," say the MPs.'
I'm sure they went on to add that the 1930s were a "remarkably peaceful decade. Aside from one high-profile incident, the decade passed without drama."
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Auntie Em
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11:19 AM
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Labels: Politics
Sunday, June 28, 2009
All artsy-caftsy like...
I finally finished my SoFoBoMo book. I decided to take the text of Cory Doctorow's essay Snitchtown, which, as with all of his work, is released under a creative commons license.
The SoFoBoMo website limits me to a 15MB upload, and the compression algorithm in Preview squashes the file rather brutally from 44MB to <1MB, so I'm also sharing the larger version here.
All the photos are available under an attribution, non-commercial, sharealike licence here.
For my next trick, I plan a new embroidery project. Keep in mind the fact that the last embroidery I did was my counted cross-stitch "buggy BASIC" sampler for the UCL CS panto. This time I plan to stretch myself a little.
For a long time I have been in awe of the drawings of neurons Santiago Ramón y Cajal, painter, gymnast, blower-up of shit and neuroscientist. See, for example, this observation of a Purkinje cell from a cat:
"Kitteh can has new-ron..."
The thought of trying to do this as counted cross stitch makes my toes curl, so I spent a coupla hours yesterday making myself a transfer with a hot-iron transfer pen.
I ended up with one good transfer on canvas. I also have one ok-ish spare that I'll happily give to anyone else at the intersection of the sets "textile nerds" and "neuroscience nerds"[1]. See here for details.
[1] This makes the rather bold assumption that this set is not a singleton...
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Auntie Em
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3:36 PM
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Labels: Craft, Perception, photography, Science
Tuesday, June 23, 2009
Someone at the Telegraph is an illiterate moron
University of Leicester Press Office:
"Promiscuous men more likely to rape"
Daily Telegraph:
"Women who dress provocatively more likely to be raped, claim scientists"
Women who drink alcohol, wear short skirts and are outgoing are more likely to be raped, claim scientists at the University of Leicester.
And yes. It's the same study. Nice gender-reassignment job in the headline there.
Full disclosure: I met Richard Alleyne during my fellowship at the FT. He was intelligent, friendly and supportive of the fellows. I remember him confirming the advice that a story should always lead with the "what the fuck?" Bizarrely, he seems to save the "what the fuck" until the end:
Using a sliding scale of sexual coercion from one to 27 where one was being allowed to enter the women's house to 27 being rape, they assessed how far men would go before "calling it a night".
Many men admitted they would go to within a point of rape before realising the girl was not interested in sex.
As a result, I'm really hoping that the egregious slant in this piece is the result of an editor's butchery. Because seriously. Yuck.
Oh yeah - and the sub-editor that wrote the sub-headline? Lying shithead. Let's review:
Daily Telegraph:
"Women who drink alcohol, wear short skirts and are outgoing are more likely to be raped, claim scientists at the University of Leicester."
University of Leicester:
"Alcohol, however, had the opposite effect than predicted, with participants more likely to coerce women who were sober rather than drunk."
Yup. Never let the truth get in the way of a good story, Telegraph. Well. Fucking. Done.
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Auntie Em
at
1:56 PM
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Labels: Bastards, How the Media "works"
Monday, June 22, 2009
Offences, Criminal and Disciplinary
Imagine wanting to publicly criticise the government (tricky I know...). Now imagine being told that you couldn't do so unless you consented to be photographed and videoed whilst doing so. Imagine too that the people carrying out this overt and intimidating surveillance took steps to conceal their identities. Imagine further that, when asked to identify themselves, the photographer's associates grabbed your throat, tied your arms behind your back and wrestled you to the floor before locking you up for four days.
West Yorkshire police officers, carrying out "Forward Intelligence" at a climate change demonstration did exactly this to Val Swain and Emily Apple on the 8th of August last year. What is more, they videoed themselves doing so. The two women locked up for four days before being released without any charge. Now the Guardian has the FIT's own video of the incident and serious questions are being asked[1].
The officers in charge may wish to refer to the annual review of anti-terrorism legislation recently completed by Lord Carlile QC, whose [PDF] report said:
"It should be emphasised that photography of the police by the media or amateurs remains as legitimate as before, unless the photograph is likely to be of use to a terrorist. This is a high bar. It is inexcusable for police officers ever to use this provision to interfere with the rights of individuals to take photographs...
"Police officers who use force or threaten force in this context run the real risk of being prosecuted themselves for one or more of several possible criminal and disciplinary offences."
Quite.
[1] Unfortunately they're being asked of the Independent [sic] Police Complaints Commission. The same IPCC that, in conjunction with the City of London Police, issued a series of "move along now, nothing to see here" press releases anout the death of Ian Tomlinson after an assault by a policeman.
The same IPCC that had to do a reverse ferret over whether or not there was CCTV footage of that policeman assaulting Ian Tomlinson shortly before he died.
The same IPCC that tried to put and end to the Guardian's investigation of that same event by complaining that the paper was "doorstepping" Mr Tomlinson's family.
"The deputy editor-in-chief who met him declined and pointed out that the Tomlinson family at that moment were in another part of the building, talking to Paul Lewis, the reporter who had driven the story, and publicly thanking the paper for its help." (Nick Davies, The Guardian, 27 April 2009.
The investigation into Ian Tomlinson's death is now being lead by the IPCC.
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Auntie Em
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9:15 AM
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Labels: photography
Thursday, June 18, 2009
Art is theft
And there are plenty of photographers leaving their cookies on the windowsill to cool[1].
The Guardian has a series, My Best Shot which showcases photographers' favourite works, accompanied by a short article about how the photo was taken.
I love Thomas Joshua Cooper's picture. It joyously breaks the rule about using an object to give some sense of scale. I can hardly tell if this is a crystal under a microscope or a mountain seen from a helicopter. The ambiguity makes me tingle.
Likewise the PhotoSynthesis blog showcases some of the best science photography on ScienceBlogs, with a different scientist curating each month. April was the turn of molecular entomologist and keen photographer Alex Wild. These photographs document some previously unseen behaviour: flies mugging ants for their food. And there are some stunning images in this essay on the dangers of anthropomorphism in science photography.
[1] This crap metaphor courtesy of high octane dental painkillers. Sorry...
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11:55 AM
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Labels: photography
Thursday, June 04, 2009
Magic Fountains, Barcelona.
I don't care if it is cheesy. The son et lumière at the Montjuïc Park Fountains made me very happy indeed.
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12:31 PM
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Labels: photography, Travel
Wednesday, June 03, 2009
Barcelona Champions League Victory.
We were staying in a hotel just behind the Placa Catalunya and to managed to experience the joy of the final achievement of Barcelona's historic "Triplete" (winning the domestic league, the cup and the Champion's League).
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Auntie Em
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11:36 AM
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Labels: photography, Travel
Friday, May 15, 2009
It's the most wonderful time of the year!
No, not Eurovision, though equally baffling and capable of inducing eyestrain. The VSS annual meeting, and the Neural Correlate Society release the results of the Best Visual Illusion contest. Enjoy!
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Auntie Em
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2:00 PM
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Labels: clever folk, Science
Thursday, April 02, 2009
Robot Scientist meets the press
I am writing this at lunchtime on Thursday but can't post 'til midnight because of the embargo (ah Clive, how well you trained me!). The Robot Scientist paper comes out on the Science website tomorrow, and in the journal soon after.
My former colleagues at Aberystwyth have been busy giving interviews and being filmed/photographed for the last couple of days. There's a science wire service I'm still subscribed to after the BSA Media Fellowship and I'm really excited, because they've just put out the first comment I've seen from someone not on the team!
I can't wait to see the coverage tomorrow. I have no idea how well the story will be treated - but I did suggest a headline for the press briefing paper: "Robot Scientist beats humans to new knowledge" so I hope that angle gets covered, rather than robots to put scientists on dole/cure cancer/kill everyone with GM yeast.
Using AI, knowledge about the domain and a lot of lab automation kit the Robot Scientist managed to discover (for itself) the previously unknown function of 12 genes in brewer's yeast. The robot starts with some knowledge about the yeast metabolism and is allowed to design experiments on yeast with genes knocked out. It uses what it learns from those experiments to design another set of experiments, then another, until it finally figures out what the gene does.
With more than 6,000 interesting genes in yeast alone, that would take humans years: the robot can run 24/7 (in theory) and run thousands of experiments in parallel. If the robot just did those experiments combinatorially, that would still take more years than we're likely to have left on this planet - so the AI for hypothesis generation and experiment planning really comes in handy!
The paper.
UPDATE: My favourite writeup is this from Clive Cookson at the FT. It's sober, well informed and distills what the work really achieved. I'm defnitely buying a copy of the pink 'un today!
One of the best writeups so far, from the land down under: Sydney Morning Herald
MSNBC also has a pretty good take on it.
Auntie Beeb has done a good job too.
And my personal favourite writeup from a blogger.
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Auntie Em
at
11:58 AM
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Wednesday, April 01, 2009
The G20 Climate Camp
After following the G20 news on Twitter most of the day I decided to stop off in the city to check out the Climate Camp.
It was a peaceful, relaxed and cheery affair. There was a heavy and visible police presence, though they were largely good humoured. One or two even consented to be hugged by some of the protesters. I'm sure I even saw one smile.
It was heartening to see charities, churches, trade unions and other random people come together for the cause of getting climate change back on the agenda.
St Ethelburger's in the City, in the middle of the climate camp, shows its support
Just outside the riot police were massing:
It seems they were just waiting for the working day to be over, and interested bystanders and lightweight participants like me to have left the area. Twitter is abuzz with news that what was an entirely peaceful and well-run camp, with tents, a compost loo, a commissary and a medical station has been overrun by the riot police in a little under a few minutes.
*sigh*
I should have known that violence-junkies like this never go disappointed:
Update:
I underestimated the resolve of the campers. They have refused to be provoked, and through the twin powers of peaceful resistance amd samba music they are holding firm for now. Wish them luck.
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Auntie Em
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6:14 PM
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Friday, March 27, 2009
Florida Stone Crabs: An apology
I travel on my stomach: I've never been to a country without learning how to ask for something I've never eaten before[1]. On my recent trip to the US I tried the local delicacy[2]: the Florida stone crab claws.
They were delicious. I must have looked like a slavering monster wrenching the all-too-easily identifiable limbs to pieces before devouring them (sharing a table with a vegetarian always alerts my to my deficiencies in both moral and actual fibre.) It never occurred to me to ask what they did with the rest of the crab.
Watching QI the other night, I found out. Apparently the stone crab can lose its claws and they grow back: a feature that stone crab fishers exploit. Apparently it is recommended that they leave the crab with one claw so it can defend itself against anything that wants to eat the rest of it (how thoughtful!)
This made me feel worse than if my crab had been rapidly dispatched and popped in a pot: some poor maimed crustacean was shuffling around the Florida seabed whilst I nommed its no-longer-appended-appendage.
I now feel even worse: research by Queen's University Belfast has found that the stone crab's hermity brethren can feel and remember pain. Which means that there's a good chance my poor claw donor saw the net coming and thought, "Oh no. Not again." Only in crab, obviously.
Florida stone crabs: I'm sorry. I hope the claws are growing back nicely. If you'd like me to come and open some oysters for you, I'd be happy to help. It's probably no comfort but you were delicious.
[1] Most surprisingly delicious thing I've had - stuffed pigeon in Egypt. Most amazing street food: brik in Tunisia.
[2] yes, they have them. Stop sniggering my judgemental European friends.
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Auntie Em
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7:49 AM
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Wednesday, March 25, 2009
Auntie Em gets a stylist?
I used to have a good hairdresser (Scottish Ruth, with the broken central heating, where did you go?) but in the three years since I last saw her I have had maybe two haircuts that I've liked. Now, OK, I only get my hair cut every two months (rather than the magazine-mandated six weeks) but that's still approximately 16 hair cuts to which the response was "oh well... it'll grow out."
I was bemoaning this to friends who have very good hair a few weeks ago and one of them advised me to get a stylist. I balked at this because, living in London, a stylist to me is someone takes 10% of your month's salary to do what the hell they want to your head. Because obviously they're far better placed to know what you want than you do: they're stylists goddammit. And they're all based in these scary salons that make me feel like that bit where Julia Roberts goes shopping in Pretty Woman, but without the warm glow of self-esteem that apparently comes from having borrowed a rich punter's credit card.
Eight weeks have rolled by since the last trim and it's time for a haircut. I've decided I'm bored of growing it: I've been trying to look professional and sober in a premature gesture towards possibly becoming a lecturer, and really it doesn't suit me at all (the hair and, possibly, the career plan.)
I know the style I want - I accidentally got it by some fluke a few years back but have lost the sole photo of it. It's best described as "messy" but that doesn't seem to be enough to go on. Google image search wasn't helping: one more picture of Reese Witherspoon with her artfully tousled frikkin red-carpet locks will kill me. I have a life, not a personal hairdresser. These are not the follicles we're looking for.
In a flash of inspiration, I realised that I was looking in the wrong place for my hair. The style I have in mind doesn't live on top of a Reese or a Drew or a (shudder) Paris. It lives on top of a Satoko or a Satomi. I finally found the hair I want on a jRock site. Please promise you won't laugh:
(Yes, I know, that's not a real person.) It took some finding. Google image searches for "Cute Japanese woman hair" without at least moderate safe search on should not be tried except in the most liberal of workplaces!
But who do I trust to transform my serviceable but dull bob into something Tokyo stylee?
Well, I work in Hendon, North London, home to a sizable Japanese diaspora. There's an Asian hairdressers on the opposite side of the dual carriageway from my tube stop. So, braving rain and underpasses, and rehearsing last night's freshly learnt Japanese grammar under my breath ("watashi no kami koto dekimasu ka?" Is my hair possible? Can you cut my hair?) just in case [1], I took a deep breath and went into a new hairdressers. I even, instead of just making an appointment, asked if I could have a consultation first (oh brave new world!)
Tan - who is from Malaysia and speaks perfect English (to my disappointment - all that practicing for nothing), sat me down and did that "wafting the hair about through his fingers" bit that I (used to) believe was purely to establish the "me hairdresser, you client" dynamic. But no - he told me why that style wouldn't work with my hair and how to change it so the bits that I like would work with my hair.
So I go back on Friday for a two hour appointment. For which I am being charged the princely sum of 25 quid. (For overseas readers (and other non Londoners), that's probably as cheap a haircut I've had in London since I moved here.)
I'm not promising photos - unless it goes really well - but watch this space. Auntie Em may yet have a good hair day!
[1] There's a Sushi restaurant next door where Japanese is pretty much exclusively spoken. I long for the day when my Japanese is good enough to use in there. Free conversation practice!
Posted by
Auntie Em
at
1:14 PM
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Labels: Home front, Japanese
Tuesday, March 24, 2009
Ada Lovelace day 2009
My heroine of science: Maggie Aderin, for her extremely cool work, and her desire to tell the world about it.
I first saw Maggie Aderin on one of Adam Hart-Davis' programmes (a quick Google tells me it was "The Cosmos, a Beginners' Guide") and I was blown away, not just by her knowledge and eloquence, but by the passion she was prepared to show for her subject.
It's an open secret in UK science that public engagement is often seen (at best) as a distraction from "real work." At worst, it is written off as a substitute for being any good at your job. And yet here was a practicing scientist that was prepared to be as ebullient as Adam Hart-Davis: professional enthusiast.
Dr Aderin's CV proves that public engagement and scientific achievement go hand in hand. She has a doctorate from Imperial College and has been a Senior Project Manager at Sira, Managing Director of Science Innovation Ltd and a space scientist at Astrium Ltd, the European Space Company.
Maggie Aderin is my heroine for Ada Lovelace day 2009 for her commitment, not just to her own research, but to the next generation of scientists. As a member of the same generation, I'm happy to have her as a role model too. Happy Ada-day Maggie.
See the full list of Ada Day posts here.
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12:43 PM
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Labels: Heros and Heroines, Science