24/04/2015
In our latest instalment of our running series, we took a look at the Great Wall of China. Today we’ll be talking about how people have taken advantage of one of nature’s finest creations – the Grand Canyon.

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The Grand Canyon is considered to be one of the wonders of the natural world, and it’s not hard to understand why. The incredible canyon was carved out of the rocks by the Colorado River which is thought to have established its course 17 million years ago. The canyon is 277 miles long and, in certain places, reaches a depth of 1 mile.

For thousands of years, humans have been fascinated by this incredible sight and have arrived in droves to view it for themselves. This is why, in 2004, production began on the Grand Canyon Skywalk that would offer a view like never before.

Construction

An entrepreneur named David Jin came up with the idea for the skywalk and employed the help of architect, Mark Ross Johnson to turn it into a reality. The walkway itself stretches out 70 feet from the edge of the canyon and looks as if it is floating. This is due to the fact that there are no direct supports from underneath.

The bridge is actually supported by beams that are anchored deep within the rock which act as counterweights. This means that the walkway is so strong that it is said to be able to withstand the weight of 71 fully loaded 747 planes or 800 people!

The walkway itself is made with four layers of Saint-Gobain Diamant low iron glass which has a protective layer over it to protect from scratches and marks as it can be removed and replaced with ease.

23/04/2015
Each year, a young wannabe-engineer is presented with the impressive title of UK Young Engineer of the Year, and 2015 was the year for Northern Ireland teenager, Colum McNally.

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After demonstrating his invention in front of the judges at the Young Scientist and Engineers Fair in Birmingham this March, McNally saw off over 2000 other entrants and his practical and economic design was crowned best in show.

Colum McNally, from Newry, designed and built the Agri-Hammer – a hydraulic, multi-functional tool invented for the assistance of farmers in cutting logs and building fences. The innovations’ main aim is to prevent potential farm accidents, with the 18 year old stating that the machine will take “the safety off the farmers’ hands, rather than taking the hands off the farmer”.

The young engineer also expresses his interest in engineering from an early age, “I’ve been involved in engineering from a young age on the farm, just building bits and pieces as we needed them,”. So, where did the idea come from? The innovative machine originated from the idea of adapting grass-fed paddock grazing for his father’s new farm shops. “He was putting in lots of posts and when we looked at post drivers they were very expensive, and I wanted to create a machine that’s cheaper, more versatile and affordable for farmers.”