Five questions answered on the sale of Virgin Media to Liberty Global

Birth of the world’s biggest broadband company.

Today it has been announced that Liberty Global will buy Richard Branson’s Virgin Media. We answer five questions on the two companies impending merger which will create the world’s biggest broadband company.

What is Liberty Global?

Liberty Global is an international media company and one of the largest broadband providers outside the US, operating in 13 countries, including Germany and Belgium.

John Malone is the company’s chairman who has had a long standing rivalry with Rupert Murdoch, who he clashed with in 2001 when News Corp and Liberty Global vied for control of DirecTV Group, the largest US satellite TV broadcaster.

How much has Liberty Global agreed to buy Virgin Media for?

In a cash and stock deal the company will pay $23.3bn (£15bn) to the UK Virgin Media company.

Shareholders in Virgin Media will recieve $47.87 a share, with $17.50 in cash and the rest in Liberty Global shares.

As part of that deal Sir Richard Branson retains a 3 per cent stake in the company, which has a 30-year brand licensing agreement with his Virgin Group.

The merger is subject to shareholder and regulatory approvals.

How does the deal fit into the wider context of the broadband/ pay-TV industry?

The merger will create the world’s biggest broadband company, with 25 million customers in 14 countries, and puts Malone in direct rivalry with Rupert Murdoch, whose media empire owns 39 per cent of BSkyB. The merged company will also be the second biggest pay-TV business after BSkyB in the UK.

Virgin Media was originally created from the merger of NTL and Telewest, and Sir Richard Branson's Virgin Mobile in 2006.

It is thought that Liberty Global will keep the Virgin Media branding.

What has Liberty Global said about its merger with Virgin Media?

Mike Fries, President and CEO of Liberty Global, in a press release statement said: “Adding Virgin Media to our large and growing European operations is a natural extension of the value creation strategy we've been successfully using for over seven years.

“After the deal, roughly 80 per cent of Liberty Global's revenue will come from just five attractive and strong countries - the UK, Germany, Belgium, Switzerland and the Netherlands.

"Like all of our strategic acquisitions we expect this combination to yield meaningful operating and capex synergies of approximately $180 million per year upon full integration.”

What has Virgin Media representatives said?

Virgin Media CEO Neil Berkett said: “Over the past six years, Virgin Media has transformed the digital experience of millions of customers, catalyzed a deep-rooted change in the UK’s digital landscape and delivered impressive growth and returns for our shareholders. I’m confident that this deal will help us to build on this legacy.

“Virgin Media and Liberty Global have a shared ambition, focus on operational excellence and commitment to driving shareholder value. The combined company will be able to grow faster and deliver enhanced returns by capitalizing on the exciting opportunities that the digital revolution presents, both in the UK and across Europe.”

Photograph: Getty Images

Heidi Vella is a features writer for Nridigital.com

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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.