What weighs 60kg (130 lbs) and pops?
Answer: a bolt from the support stanchions at the recently-completed 47-storey Leadenhall Building on Leadenhall Street in the heart of the financial district in London.
The bolts are five inches in diameter and three have broken apart. After the first two broke, British Land which owns the building had the remaining bolts tethered in place with plastic ties. That prevented the third bolt from falling to the ground.
The reason the bolts are failing is because of what is called hydrogen embrittlement – growing cracks in the metal caused by the presence of hydrogen in the manufacturing process.
The building is colloquially known as the Cheesegrater because of the way it slopes – narrowing towards the top.
The building was built this way to conform with planning requirements to maintain views of St. Paul’s Cathedral and other classical buildings.
The building is directly across the road from another iconic building – the Lloyds Building
And here is a view of the side of the Lloyds Building (the building on the left) showing its ‘inside out’ design with all the pipe-work on the outside.
I took these photos with my phone and I sized the photos for use on the Web using the Reduce app.
And I am posting this article using the WordPress mobile app – so we really have reached the situation now where all that is needed to blog is a phone and an Internet connection.