Hang on a second: clocks at a Hong Kong clock and watch fair. Photo: Getty
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The pros and cons of leap seconds

The slowing pace of the earth’s spin means that occasionally we have to add on a second – but should this practice continue?

The British science minister, David Willetts, wants your input on an issue you’ve probably never even thought about. The question, in essence, is this: would you care if, in 800 years’ time, the sun was at its highest point overhead at 1pm, rather than today’s 12 noon?

There’s an international scientific kerfuffle over this. It is prompted by the changing pace of the earth’s spin. The moon and sun pull on our planet, slowing its rotation and giving us an ever-lengthening day. The effect is tiny – adding less than two-thousandths of a second per day – and it is not consistent. Sometimes, the rotation even speeds up for a while. We’re not sure why but we think it is because interactions between earth’s liquid iron core and the rocky mantle that surrounds it can exert an accelerating effect. Ocean currents also seem to speed up the pace at which the

world turns. In the long term, though, we know the days are getting longer. As a result, occasionally, to keep our clocks in sync with when we expect sunrise and sunset to occur, we have to add a “leap second”.

It sounds easy but it’s not. For 14 years, countries have been debating whether the practice of adding a leap second should continue. Shoehorning an extra second into the clocks of computer programs can create software glitches that have widespread effects. In 1998, for instance, the insertion of a leap second caused a mobile-phone blackout across the southern United States because different regions were suddenly operating with time differences outside the error tolerances. Then in 2012 an airline’s booking system went belly-up for hours after a leap second insertion. The US department of defence has argued vociferously that the leap second compromises the “safety and reliability” of certain systems; scaremongers talk about missiles and air-traffic control systems going awry in some such future adjustment.

One solution to this is to let our clock readings gradually drift away from any association with the position of the sun in the sky. After all, who cares?

Well, you – perhaps. Britain is one of very few nations that have battled to keep the leap second. Most countries are happy to let the clocks drift away from “solar time”. The reason for Britain’s reticence is largely to do with ministerial gut feeling about our sense of cultural heritage: the time of day has always been linked with the position of the sun in the sky and why should we abandon that just because some programmers can’t do their job properly? In April, the UK government launched a public consultation to find out what you think (full disclosure: I am on the consultation’s oversight committee checking that the process is fair and frank).

There are potential issues with abandoning the leap second. Human beings have always lived by sunrise and sunset; our biology responds to rising and fading light levels. Without leap seconds, or some other adjustment of time, noon in the year 4000 will occur in total darkness. Also, the sun’s position in the sky plays a role in the timing of certain religious observances. Whether the link to the numbers on a clock face matters in these instances is as yet unknown, hence the consultation. Can we justify dropping the leap second – and maybe redefining “noon” – just because of computer programming problems?

On the other hand, some will argue that we cope with time zones and daylight saving time; why would we care about a second every few years? That’s for you to answer, if you care enough to bother.

Michael Brooks holds a PhD in quantum physics. He writes a weekly science column for the New Statesman, and his most recent book is At the Edge of Uncertainty: 11 Discoveries Taking Science by Surprise.

This article first appeared in the 01 May 2014 issue of the New Statesman, The Islam issue

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Why are online jokes funnier without punctuation and capital letters?

Academics and social media users weigh in on Twitter’s most unexplained phenomenon. 

The first person to notice it did so in 2010. “Sometimes I think a twitter joke is funnier if you omit punctuation,” tweeted @zacharylittle on 2 April. He was a pioneer. It took two years for anyone else to express the same thought, but they did so in droves. “I like not using punctuation like commas on twitter because its somehow funnier lol,” said @chxrliesheen, sans apostrophe. “I never use punctuation on twitter and tumblr I just think its funnier ok,” exclaimed @julieamarch. From then until now, people have been constantly questioning the phenomenon, but there are still no answers.

Why exactly are Twitter jokes funnier when they have grammatical errors, discard punctuation, lack capital letters, or are misspelled?

“There is a frisson, or sense of pleasure, from playfulness in language,” Dr Deborah Tannen, a professor of linguistics at Georgetown University, tells me over email – in which she demonstrates some of this playfulness herself. “writing wihtout caps, proper punctation, and leaving misspellings uncorrected also feels like private communication, like whispered kjokes, and therefore has the same potential thrill.”

Dr Hugh Rabagliati, a Chancellor's Fellow at the School of Philosophy, Psychology, and Language Sciences at the University of Edinburgh, warns me that most of his knowledge on the subject comes from “spending too much time on Twitter, rather than any obvious academic work”. It is true that research into the area is lacking – books about “internet language” get outdated quickly, and seem to focus on email and chatrooms, rather than more modern social media. “The misspellings [on Twitter] are often beautifully calibrated, like a very subtle malapropism, and the grammar errors are designed to make familiar material feel out of kilter,” he says.

Sometimes humour is found when grandiose sentiments are contrasted with train-wreck grammar, he argues, whereas other times the language can be exclusionary and people share it to prove they “get” the joke.

Perhaps the most famous Twitter user who has mastered the technique of the misspelled tweet is Jonathan Sun. Sun has gained 168,000 followers posing as an “aliebn confuesed abot humamn lamgauge”, and is part of what is known as “weird Twitter”, a subset of the site where humour is surreal and often bolstered by misspellings, a lack of punctuation, and grammatical errors. But while “weird Twitter” takes it to the extreme, many other arguably “normal” Twitter users will uncap the start of their Tweets or the word “I”.

“i’m not really sure why but i’ve been going out of my way to un-cap for ages,” one anonymous Twitter user told me via a direct message on the site. “i recognise that it is a stupid waste of time, ive had partners mock me for it.” Possibly, they theorise, they do this because they used to edit copy as part of their job. “it could be a reaction to that, to be completely armchair psychology about it.”

Naomi Baron, a professor of linguistics at American University and author of Words Onscreen: The Fate of Reading in a Digital World reinforces this point. She argues that language users are always looking for ways to distinguish their voices and express emotion. “A bevy of authors – from the poet e.e. cummings to social media scholar danah boyd – have further personalised their identity by eschewing the normal capitalisations in their names,” she says. “When it comes to social networking sites such as Twitter, lack of capital letters lends a tone of informality that makes the messages feel more speech-like.”

It’s hard to admit that you’re deliberately making mistakes in order to look offhand, as you are essentially revealing you try-very-hard-to-look-like-you’re-not-trying-at-all. But Rebecca Reid, a 25-year-old journalist, admits this is why she used to uncap her tweets. “Honestly I literally thought it made me look cooler,” she says. “I saw my sister doing it, and she's a couple of years younger and very trendy, so I thought it was just what we were doing. So I copied her. This is so tragic from me. And after a while I realised that it wasn't making me seem edgy, it was making it seem like the shift button on my key board was broken.”

It is true that informality is important in written messages, as a 2015 study revealed that ending text messages with a full stop was perceived to be insincere, most likely because it is seen as a sign of aggression. Twitter jokes that are written similarly formally – with full stops and capital letters – might also seem insincere, or be less inviting or inclusive than those with deliberate mistakes, run-on sentences, or five-too-many exclamation marks.

“There's also a phenomenon that linguists have only started discussing in the last decade, called ‘Eggcorns’,” says Rabagliati. “Here the speaker has learned a misanalysed locution. The phenomenon is named from the case of a woman who had, all her life, misheard the word acorn as ‘eggcorn’. ‘To all intensive purposes’ is a similar error. These mistakes play on our fear that our knowledge of language might not be as robust as we want to believe – think about all those words that you've read, but never heard aloud. Plus, the errors are fun because they demand some backwards reasoning to reconstruct.” 

More academic research is needed for a final answer on the phenomenon, but one thing is certain. If uncapitalising things on Twitter is cool, writing an 800-word article about it certainly isn't. 

Amelia Tait is a technology and digital culture writer at the New Statesman.