Still awaiting the retail recovery

New figures out today show that the retail sector shows no signs of leaving its post-2008 slump

The retail sector today becomes the latest to report that they see no signs of an economic recovery on the horizon.

The February edition of the British Retail Consortium's (BRC) retail sales monitor shows that overall spending is up 2.3 per cent on last year, but taken on a like-for-like basis (a measure that excludes shops which have opened or closed in the past year, removing variation in floorspace as a source of change) it has dropped by 0.3 per cent.

KPMG co-publish the report, and their head of retail, Helen Dickinson, said:

Consumers remain reluctant to spend unless encouraged by promotional activity. Thus, while the market is still growing slightly in headline sales terms, profitability continues to be eroded through loss of margins.

The growth in non-food non-store sales - mail order, phone, and, increasingly, internet - dropped from earlier months, but still far outstripped the headline figures. At 9.9 per cent year-on-year, even a bad month still represents a strong future for the subsector.

A similar pattern in the US has led Slate's Matthew Yglesias to ponder whether they are seeing "the end of retail":

Tolstoy wrote that each unhappy family is unhappy in its own way, but while each troubled big-box chain has a unique story, there’s a common enemy: the Internet.

Online retail sales this past November and December were up 15 percent compared with late 2010. In the third quarter of 2001, e-commerce sales were 3 percent of all retail (including food) sales in America. By the third quarter of 2011 (i.e., before the Christmas surge was fully incorporated into the data), that was over 12 percent. The move toward online shopping is relentless, driven by both convenience and the ability of Web-based retailers to largely avoid paying sales taxes. As mobile devices become even more useful for shopping, online retailers will grow faster.

The director general of the BRC, Stephen Robertson, doesn't quite agree with Yglesias' analysis, saying:

Online continues to grow faster than any other retail channel but the rate of increase in sales has slowed since Christmas and is well down on the kind of performance that was typical in 2010 and before.

Non-food sales have been worst affected by customers’ continuing fears about their own finances and prospects. That’s being felt online as well as in stores but the slowing of online growth may now also be reflecting some maturing of the market.

Whether or not the online sector is reaching maturity is precisely the issue at hand. It does seem like there is an element of wishful thinking on the part of Robertson, since year-on-year growth of almost 10 per cent is hardly representative of a mature industry.

But to see whether there is a genuine threat to brick-and-mortar retail, we'll have to wait until the sector as a whole regains its growth. If a significant proportion of the recovery gets taken up by the online outlets, then the rest of retail will really have to start worrying, and to know that requires a recovery which has been a long time coming.

The Amazon warehouse in Swansea, in the run-up to Christmas. Credit: Getty

Alex Hern is a technology reporter for the Guardian. He was formerly staff writer at the New Statesman. You should follow Alex on Twitter.

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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.