Rebuilding Bebo: Shaan Puri reveals his plans for the social network

"The biggest lesson is that the social products that succeed are non-obvious"

Last month, Michael Birch, the founder of the once-popular social networking site Bebo, reacquired the platform for a fraction of the price he sold it for in 2008. 

Besides releasing a tongue-in-cheek video previewing the relaunch of the network, the company have been reluctant to release details about its ongoing development.

I caught up with Bebo's new CEO, Shaan Puri. 

The network is currently being promoted through a self-deprecating satire of a corporate video. What was the thinking behind this?

It took a series of simple decisions:

Firstly to decide not to be boring. Most companies just put up a text landing page with a paragraph that says "sorry...blah blah...coming soon."

Secondly to decide to be honest. I hate when brands try to make a 'cool comeback' when they haven't been relevant in years. You can't throw money at the problem, hire celebrities and run fancy advertisements. People are too smart to be fooled. We are going to refresh the brand now that it's back in the hands of its original founders, but before you can move forward, you must acknowledge the present first. It was a risk, but so far the reaction has been tremendous. People like that we chose to do something funny, honest and self-deprecating.

A brand is an embodiment of the people behind it. Michael and I like to joke around, and don't take things too seriously. So for us, doing a spoof corporate video sounded like fun.

The new Bebo is launching initially as mobile-only. Why?

The concept we have for the new Bebo really works as a mobile app. This is fortunate, because the idea we are excited about for the new Bebo fits into a huge trend right now of people being connected via smartphones.

The social networking landscape is so changeable and unpredictable. Bebo's rise and fall epitomizes this. Why do big companies still invest so willingly?

I think there are two reasons:

1. Its really unlikely that a large company built around a completely different type of business model would ever internally create a social product that wins over the masses. Big companies find it hard to innovate outside of their core product. Yahoo would never be able to create Tumblr from scratch. Even Google has struggled to do it with Google+.

2. Social networks grow fast, and have incredible network effects. Even companies that understand 'social', such as Facebook, find it hard to compete with the Snapchats and Instagrams of the world. Once the big companies notice a startup is worth copying, the startup has built up too much velocity with its viral growth to be stopped.

What lessons have you learnt from the mistakes of other social networks?

Good question. I think the biggest lesson is that the social products that succeed are non-obvious. They sound silly, or like toys at first. Facebook, Twitter, and most recently, Snapchat. Next thing you know, they've disrupted everything.

There has been a lot of press recently about harassment on social networking sites. How should they police their communities?

Like any community, it starts with the people you attract, and the value system they are buying into when they join the site. Luckily, Michael has unique experience in growing a social network from just a few users to many millions, and is familiar with the challenges of managing a community through each phase of growth.

What has presented the greatest challenge in the development of the new Bebo?

We are doing two things at once, which is always tricky. On one hand, we're rebuilding the image of Bebo, and at the same time, we're building the actual product. Both need to be done very well for us to succeed.

Bebo. Photograph: Getty Images

James is a freelance journalist with a particular interest in UK politics and social commentary. His blog can be found hereYou can follow him on Twitter @jamesevans42.

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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.