What is Vladimir Putin up to?

What Russia wants it gets if it can.

Vladimir Putin's contempt for the useless fools of the West who fawn upon him has again been revealed by the sentence given to three members of Pussy Riot last week. An appropriate and proportionate response might be to suspend Russia from the Council of Europe until they are free. This won't happen, as Tory MPs sit with Putin stooge MPs at the Council of Europe and despite hand wringing from a junior minister on the sentence, Cameron and Hague are refusing to criticise Putin.  

In 2008, Cameron flew to Tbilisi from his Aegean holiday to show solidarity with the people of Georgia after the Russian invasion and dismemberment of their country. Last week Putin admitted it was a pre-planned and pre-meditated military assault. At a press conference, Russian reporters were astonished to learn: “There was a plan, it's not a secret”.

Putin made the remarks in response to a TV documentary, The Day That Was Lost, in which Russian generals made outspoken and unprecedented criticisms of the then President, Dmitri Medvedev. The military men accused  Medvedev, who was then commander-in-chief of the Russian armed forces, of failing to act decisively in the crucial first few hours of the August 2008 conflict - a "tragic delay that cost so many lives" in their view. Putin, who was then prime minister, is portrayed in the film as the saviour of the situation - the man who "provided personal leadership" during the military operation. The then Chief of the General Staff, Yuri Baluyevsky, said that that until Putin "delivered a kick, everyone was afraid of something".
 
Now back as president and commander-in-chief Putin was not going to disavow his generals. “There was a plan, and within the framework of this plan that Russia acted. It was prepared by the General Staff at the end of 2006 or the beginning of 2007. It was approved by me, agreed with me."
 
At a stroke the Kremlin line that the Georgian war was wholly the responsibility of Georgia's leader Mikheil Saakashvili was discarded. Until now Russia has always denied taking offensive action. So why has Putin suddenly revealed the truth?
Inside Russia the slapping down of the Prime Minister, Dimitri Medvedev taking a shot across the bows of his predecessor.

According to the Russian political analyst, Mikhail Rostovsky, the comments are evidence of a "war" being waged within the Putin-Medvedev double act, as Medvedev "actively struggles for the role of real co-ruler of the country".
 
As over Syria Putin may just be fed up with pretending he has any interest in working with the West. What Russia wants it gets if it can. Belarus and Ukraine are now firmly  in Moscow's orbit and the invasion of Georgia four years ago was a signal that Russia would not tolerate an independent western aligned state that
formerly was part of the Tsarist and Soviet imperiums.

Putin's remarks were also aimed at Tbilisi. Political tension is rising in Georgia in the run up to Parliamentary elections on 1 October where Saakashvili's ruling party faces a serious challenge. A Georgian oligarch whose fortunes come from business in Russia and whose net worth is about one third of Georgian GDP is backing a recently created party, Georgian Dream. There are plenty of reasons to challenge the personalized rule of Saakashvili but big money seeking to buy power is not attractive. Win or lose Georgia is entering a period of political instability. If the post election scenario is one of chaos and confrontation Russia could be tempted to restore order and stability. This fear is heightened by upcoming Russian military exercises in the Caucasus which also were prelude to the 2008 invasion.

President Obama's reset diplomacy with Russia has produced very little. British policy wavers. Mr Cameron greets Putin warmly at the Olympics and the Foreign Office refuses to implement a unanimous resolution of the House of Commons mandating action against Putin's functionaries connected with the death of Sergei Magnitsky. The Labour MP Kerry McCarthy attended the Pussy Riot show trial on which the British government was silent until the sentences provoked global outrage.
 
Next week British Conservatives will be at the Russian Embassy in London to launch a “Conservative Friends of Russia” group and William Hague has made clear that under his foreign policy trade  trumps human rights.

In two years' time the keen skier President Putin hopes the Sochi winter Olympics will boost Russia. They take place close to the Georgian region of Abkhazia now being turned into a major Russian military zone complete with missile bases. Putin's revelation that the invasion of Georgia was premeditated are not a good augur for a tension-free Winter Olympics in 2014.

Denis MacShane MP is a former FCO minister. Follow him on Twitter as @denismacshane
 

There is now a war being waged within the Putin-Medvedev double act. Photograph: Getty Images
Denis MacShane is MP for Rotherham and was a minister at Foreign and Commonwealth Office
Getty
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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.