The SNP publishes its referendum consultation paper

Alex Salmond has very conspicuously left open the possibility of staging a multi-option ballot.

Earlier this afternoon, amid considerable domestic and international media excitement, the Scottish Government published its long-awaited referendum consultation paper. The document - Your Scotland, Your Referendum - lays-out the SNP's favoured blueprint for a vote on whether Scotland should become an independent nation-state or remain within the United Kingdom under the current devolutionary settlement.
 
Its key proposals are:
 

  • That the referendum should be held in the Autumn of 2014

 

  • That the franchise should be extended to 16 and 17 year-olds

 

  • That those eligible to vote in the referendum should be residents of Scotland

 

  • That the ballot should include the question, "Do you agree that Scotland should be an independent country?"

 

  • That the vote should be "administered" according to the same arrangements as local and parliamentary elections in Scotland and "co-ordinated" by the Scottish Electoral Management Board

 

  • That spending during the 16-week referendum campaign period should be limited to £250k per political party, £750k per designated campaign organisation, £50k per other registered organisations and £5k per individual and other separate bodies

 

Crucially, although not entirely unexpectedly, the consultation also leaves open the possibility of there being a multi-option ballot in which Scots would have the opportunity to vote for a "Devolution Max" or full-fiscal autonomy option. This will prove highly contentious. All the Unionist parties are united in the belief that the referendum should be conducted on the basis of a simple Yes/No question. They remain convinced that the nationalists, lacking a majority for full separation, want to secure maximum devolution as a "consolation prize". The Scottish government's response, as articulated by Alex Salmond in his statement to the Scottish Parliament today, is that there are many people in Scotland who don't support independence or the status-quo but would like to see the powers of Scottish Parliament significantly enhanced. As such, he argued, it is "only fair and democratic" that their views be heard.
 
Throughout his address, the First Minister aimed for - and more or less struck - a broadly conciliatory and statesman-like tone. Although he reaffirmed his party's commitment to independence - as well as its conviction that, following separation, the British nuclear deterrent must be removed from Scottish waters - he conceded that the UK Electoral Commission should be involved in the monitoring and regulating of the referendum campaign process, something which, up until now, the SNP had firmly opposed. He also acknowledged that the questions on the ballot paper should, in compliance with the Commission's guidelines, be presented clearly, simply and neutrally.
 
Another issue on which he indicated he may be willing to compromise was that of the referendum's legal status. "In order to ensure", he said, "that the referendum is effectively beyond legal challenge, we are willing to work with the UK Government and I look forward to my discussions with the Secretary of State and the Prime Minister in the coming days." This could mean the SNP is prepared to allow for greater input from London with regard to the conditions under which the referendum is held in exchange for the transfer to Holyrood of the legislative power to stage a binding plebiscite. On the other hand, it may mean nothing of the sort: Salmond is an expert at double-bluff and will certainly be hoping to wrong-foot his opponents ahead of a series of tough negotiations.
 
There is nothing particularly revelatory about the Scottish government's announcements today. Most of what is set out in the consultation paper echoes the kind of statements and sentiments the SNP has been making since it won its historic majority last May. It is worth noting, though, that if Salmond was really intent on staging a referendum in which the only two options were independence and the status-quo, today would have been a good day to say so.

James Maxwell is a Scottish political journalist. He is based between Scotland and London.

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Inside Big Ben: why the world’s most famous clock will soon lose its bong

Every now and then, even the most famous of clocks need a bit of care.

London is soon going to lose one of its most familiar sounds when the world-famous Big Ben falls silent for repairs. The “bonging” chimes that have marked the passing of time for Londoners since 1859 will fall silent for months beginning in 2017 as part of a three-year £29m conservation project.

Of course, “Big Ben” is the nickname of the Great Bell and the bell itself is not in bad shape – even though it does have a huge crack in it.

The bell weighs nearly 14 tonnes and it cracked in 1859 when it was first bonged with a hammer that was way too heavy.

The crack was never repaired. Instead the bell was rotated one eighth of a turn and a lighter (200kg) hammer was installed. The cracked bell has a characteristic sound which we have all grown to love.

Big Ben strikes. UK Parliament.

Instead, it is the Elizabeth Tower (1859) and the clock mechanism (1854), designed by Denison and Airy, that need attention.

Any building or machine needs regular maintenance – we paint our doors and windows when they need it and we repair or replace our cars quite routinely. It is convenient to choose a day when we’re out of the house to paint the doors, or when we don’t need the car to repair the brakes. But a clock just doesn’t stop – especially not a clock as iconic as the Great Clock at the Palace of Westminster.

Repairs to the tower are long overdue. There is corrosion damage to the cast iron roof and to the belfry structure which keeps the bells in place. There is water damage to the masonry and condensation problems will be addressed, too. There are plumbing and electrical works to be done for a lift to be installed in one of the ventilation shafts, toilet facilities and the fitting of low-energy lighting.

Marvel of engineering

The clock mechanism itself is remarkable. In its 162-year history it has only had one major breakdown. In 1976 the speed regulator for the chimes broke and the mechanism sped up to destruction. The resulting damage took months to repair.

The weights that drive the clock are, like the bells and hammers, unimaginably huge. The “drive train” that keeps the pendulum swinging and that turns the hands is driven by a weight of about 100kg. Two other weights that ring the bells are each over a tonne. If any of these weights falls out of control (as in the 1976 incident), they could do a lot of damage.

The pendulum suspension spring is especially critical because it holds up the huge pendulum bob which weighs 321kg. The swinging pendulum releases the “escapement” every two seconds which then turns the hands on the clock’s four faces. If you look very closely, you will see that the minute hand doesn’t move smoothly but it sits still most of the time, only moving on each tick by 1.5cm.

The pendulum swings back and forth 21,600 times a day. That’s nearly 8m times a year, bending the pendulum spring. Like any metal, it has the potential to suffer from fatigue. The pendulum needs to be lifted out of the clock so that the spring can be closely inspected.

The clock derives its remarkable accuracy in part from the temperature compensation which is built into the construction of the pendulum. This was yet another of John Harrison’s genius ideas (you probably know him from longitude fame). He came up with the solution of using metals of differing temperature expansion coefficient so that the pendulum doesn’t change in length as the temperature changes with the seasons.

In the Westminster clock, the pendulum shaft is made of concentric tubes of steel and zinc. A similar construction is described for the clock in Trinity College Cambridge and near perfect temperature compensation can be achieved. But zinc is a ductile metal and the tube deforms with time under the heavy load of the 321kg pendulum bob. This “creeping” will cause the temperature compensation to jam up and become less effective.

So stopping the clock will also be a good opportunity to dismantle the pendulum completely and to check that the zinc tube is sliding freely. This in itself is a few days' work.

What makes it tick

But the truly clever bit of this clock is the escapement. All clocks have one - it’s what makes the clock tick, quite literally. Denison developed his new gravity escapement especially for the Westminster clock. It decouples the driving force of the falling weight from the periodic force that maintains the motion of the pendulum. To this day, the best tower clocks in England use the gravity escapement leading to remarkable accuracy – better even than that of your quartz crystal wrist watch.

In Denison’s gravity escapement, the “tick” is the impact of the “legs” of the escapement colliding with hardened steel seats. Each collision causes microscopic damage which, accumulated over millions of collisions per year, causes wear and tear affecting the accuracy of the clock. It is impossible to inspect the escapement without stopping the clock. Part of the maintenance proposed during this stoppage is a thorough overhaul of the escapement and the other workings of the clock.

The Westminster clock is a remarkable icon for London and for England. For more than 150 years it has reminded us of each hour, tirelessly. That’s what I love about clocks – they seem to carry on without a fuss. But every now and then even the most famous of clocks need a bit of care. After this period of pampering, “Big Ben” ought to be set for another 100 or so years of trouble-free running.

The Conversation

Hugh Hunt is a Reader in Engineering Dynamics and Vibration at the University of Cambridge.

This article was originally published on The Conversation. Read the original article.