Dead Comet Sketch

Yesterday evening we were all Monty Python Dead Comet Sketch over ISON. It was pining for the Oort, this comet had ceased to be, it was no longer trailing up the blazes…etc etc

But, this morning, I wake to hear news that this comet has actually ceased to not be.

Will this be the most viewed animated gif of Black Friday once the US wakes from its turkey-induced tryptophan coma (#deceivedwisdom by the way) that they refer to generously as Thanksgiving?

More on what we might expect from comet ISON via NASA and SpaceWeather.

Chemist with an iPad

Touch Press has come up with the perfect gift for the chemist with an iPad in your life with The Elements in Action app. Great videos, neat explanations, easy to use.

Wonderful demonstrations showing why you are not allowed to take mercury and gallium on your holiday flight, a foil “tank” of air floating on sulfur hexafluoride gas, and a quick test to show your titanium tools are genuine and not iron-based fakes…there’s also gallium the element that would have been Salvador Dali’s favourite we suspect, it melts on a hot day, although on a really hot day he might have enjoyed rubidium too. Then there’s the bromine watch…

TouchPress also debunks a couple of bits of pieces of chemical deceived wisdom. For instance, we’re all taught that iodine sublimes when heated, leaping straight from the solid to the gas phase, but the app video shows a distinct liquid phase just before clouds of iodine vapour appear. Caesium does react violently with water, but not quite as cataclysmically as your chemistry teacher may have led you to believe.

The Elements in Action iPad, iPhone & iPod app — Touch Press.

The sound of cicadas and crickets in the outdoor video clips may be a little distracting but adds to the authenticity of the sodium or liquid nitrogen in the lake!

Bromide in tea? Pull the other one

TL:DR – There is a British myth that they used to add “bromide” to the tea of soldiers in World War I to reduce libido. The didn’t.


According to Brian Clegg, writing about “bromide” in Chemistry World this week, bromide salts had an early role in reducing the impact of epilepsy and seizures, which were at the time thought to be caused by an over-active libido and more specifically masturbation.

“Potassium bromide was linked to the reduction of sexual passions,” writes Clegg. “It doesn’t seem unreasonable, then, that potassium bromide might be used in an attempt to reduce sexual tension in circumstances where men were isolated for long periods, hence the story of bromide in the tea [given to soldiers during the Great War]”.

Personally, I recall some time in the 1990s during the time I was contributing chemistry news and features to New Scientist magazine, I had a call from a researcher at one of the big UK soap operas at the time (no longer on our screens, oh alright it was Brookside).

The scriptwriters had a character (Sinbad) who was being over-libidinous and the researcher wanted to know if there were anything they might have his on-screen girlfriend add to his tea to temper his desires. They’d heard about “bromide”, but that does seem still to be considered something of a myth, as Brian explains.

I don’t remember what I actually told the researcher they might use, but suggested whatever it was would complicate the “humourous” plotline by introducing an element of pharmaceutical fraud, whereby the girlfriend would have to get hold of something prescription only (an antidepressant/sedative with libido-reducing side-effects, for instance).

I think in the end the scriptwriters were told to find another way that Sinbad’s girlfriend might quell his desires…given that he was the soap’s window cleaner maybe they had her slap him about the place with a wet squeegee…

Potassium bromide.

Time travel paradox

Okay…you know people always say that travelling back in time, with a “time machine”, wormhole or whatever, would be impossible because if you could go back in time, you might bump into your grandparents before your parents were conceived and somehow your presence prevents one of the conceptions that lead to your parents and ultimately you so that you are never born so are never “in the future” so that you could never use that time machine to travel back and stymie the conception of one of your parents, so you would be born and so could travel back in time and…you get it…it’s a PARADOX. They even made a whole movie franchise from it starring Michael J Fox, after all.

But, here’s the the thing. If you were able to travel back in time and somehow stopped your mother giving birth to you so that you never travelled back in time then, the timeloop might alternatively close so that you’d be stuck in the time before your birth with no time machine…

Anyway, enough of that, here’s an amusing video showing most of the continuity and a few metaphysical bloopers in Back to the Future

A pre-festive warning

I know some of you will be starting to think about Christmas already…don’t worry, that’s fine. I’ve got a little sing-along-a-Dave treat coming up for you with which you can begin the “celebrations”. I might even accept gifts this year, as long as they’re of the 40% distilled C2H5OH-H2O flavoured azeotrope variety, preferably from Northern Ireland rather than Scotland.

Anyway, if you are starting preparations early (it’s 15th November folks, no need to rush), here’s a little festive warning you can cut out and pin to your noticeboard or stick to your fridge with that Xmas pudding fridge magnet you got in your stocking in 1997, you know the one that falls off when you try to stick anything heavier than a dead fly’s wing with it…

festive-warning-666px

You can get 12-armed snow crystals that are essential a double 6 with a twist and triangular crystals are like compressed hexagons. If I remember, rightly it’s all in Deceived Wisdom where I quote from the main man in this area http://www.its.caltech.edu/~atomic/snowcrystals/class/class.htm

Aural barriers protect workers

It’s a distant memory to me, but apparently barbers and hairdressers still chunter on to their customers as they snip and tease the cranial follicular extrusions: “Turned out nice again…although they’re forecasting snow…oh that Chancellor’s got a nerve cutting benefits and introducing new taxes, and have you seen the price of petrol these days…going anywhere nice on your holidays, then?

In case you hadn’t already guessed, hairdressers, like beauty therapists, nurses, taxi drivers and many others involved in one-to-one occupations (with the exception of doctors) are generally not interested in your responses to their verbal outpourings. The stream of consciousness, the unceasing gossip, the endless chit-chat is a barrier. An aural barrier they erect to create an auditory fog that lets them escape into their own world and focus on the task in hand whether that’s tussling with your tresses or taxiing you from A to Z…

There are many occupations that create a wall of sound around employees, factory work, construction, railway engineer etc and as such, those involved in that work are encapsulated by the sound or if it is above a certain threshold they wear ear protection which encapsulates them in what you might think of as a negative sound space. They might fancy a chat on the job but there’s no opportunity until a tea break comes along. For those who work in the not-so-splendid isolation of the office cubicle, the whirring of a printer, the background chatter of colleagues on the phone and the trundling of the post-room trolley set up the aural landscape for them. But, unless they’re engaged in a phone conversation themselves they need not create the kind of barrier needed by those working one-to-one, such as the hairdresser and taxi driver.

Recently, Harriet Shortt of the Department of Business and Management, at the University of the West of England, Frenchay Campus, in Bristol, UK, has focused specifically on the auditory landscape of the hairdressing salon. In her research, reported in the International Journal of Work Organisation and Emotion, Shortt explains how employees construct their auditory barriers, or one might say, their imaginary escape routes, to help them cope with the constant emotional labour of their task. This is an especially important consideration in ensuring employee wellbeing and mental health where an occupation requires the employee to be constantly on display and offers little refuge behind the walls of a cubicle or in front of a screen or in the more naturally noisy environment of the factory floor, for instance.

Research Blogging IconShortt H. (2013). Sounds of the salon: the auditory routines of hairdressers at work, International Journal of Work Organisation and Emotion, 5 (4) 342. DOI: 10.1504/IJWOE.2013.057400

Nik, Dick, Ros, and Higgs

Some start-the-week-fun with science. A few of my heroes immortalised in what I self-generously refer to as “verse”, as if any of them need me to “immortalise” them with rhyme…now with added Higgs.

motoring-tesla
bongo-feynman
ode-to-rosie-new
higgs-god-particle
relatively-einstein 

Nik

Nikola Tesla had magnetic charm
A twentieth century star
His current alternating was so fascinating
And his name now quite grandly a car

Dick

Feynman never suffered any fool quite gladly
His diagrams confused but they were no fadly
And his bongos he’d bang and his hands hurt so badly
Though his memory lives on, he’s long gone very sadly

Ros

A dark lady slaved in the lab of a King
With the secret of life she did play
But, Watson and Crick a structure did bring
to deoxy-ribo-nuke-A

Higgs

Bosuns at sea, they’re always nautical
Bosons in fields are Higgs’ kind of article
They give matter its mass,
taking flight aeronautical
A Nobel pursuit good God, heavy particle!

Albert

Quantally speaking Albert couldn’t have cared
Any less of a man would have run away scared
But he saw the light and he speedily shared
Energy equals mass times velocity squared