Wind has been used for over a thousand years, with the first known windmill built between 500-900 AD in Persia (known as Iran, today). For centuries to come, wind would be used to power grain mills and scoop up water out of a river or stream. Surprisingly, the first windmill, or wind turbine, to actually produce electricity was built way back in 1887 in Scotland. Inventor James Blyth used the turbine to power his vacation home.
Now, wind turbines for electricity are slowly gaining in popularity, but the race is on to see who can make them more and more efficient. Just like solar power, not all of the energy gained from wind can be used.
How do Wind Turbines Work?
Wind turbines are obviously more suitable to windy environments, as it uses the wind to turn its blades. The blades typically rotate at 18 RPM, which is pretty slow, so a series of gears are installed inside the shaft that rotate at 1800 RPM. Those gears then power a generator, which begins to create electricity. The video below gives great information for those looking to learn more about how wind turbines work.
Locogen Wind Turbine Timelapse
Now, for the main attraction. The 330KW wind turbine in North Ayrshire, Scotland. The structure stands 200 feet high (61m) and is Locogen’s Enercon E33 turbine. In the video, you’ll see the entire construction process, from beginning to end and it’s filmed up close, so you can see pretty much every detail. Typically, timelapse videos only show an overview of the entire site, so you can barely tell what’s actually being done, so it’s nice to see a company take a different approach.
Mistakes during demolitions happen. Sometimes contractors knock down the wrong buildings, other times the explosives used don’t knock the building over, and other demolitions are carried out with a complete lack of regard for human life. As fun as they are to perform and watch, they’re inherently dangerous and there should be a plan in place in case things go wrong.
Cranes collapse for a variety of different reasons. Some are overloaded, some catch on fire, and others succumb to high wind loads. Regardless of the reason, a falling crane can cause tons of damage and have the potential to kill on-site workers and pedestrians walking near the job site.
A recent crawler crane collapse in Northern Italy could have been much worse as the crane, carrying a large section of viaduct, crashed to the ground.
Traffic in Atlanta sucks, there’s really no other way to say it. So imagine the tough position commuters and city officials were put in when a bridge of a major highway on the north side of the city caught fire on March 20, 2017 and was damaged beyond repair. 243,000 motorists were forced to find alternate routes to work for the estimated 3 months that it was going to take to rebuild it. Now, imagine how thrilled they were when the highway opened back up one month ahead of schedule.
There’s no doubt that construction workers love a good prank and some of them get pretty creative. Our favorites in the past have included the seismic test prank, the fake bear on site prank, and the “staple in the finger” prank. Obviously, as far as messing around on the job site goes, the least dangerous as the prank is, the better.
Construction Junkie has shared a lot of demolition videos. Typically, people line up waiting for the moment when the building explodes with their eyes peeled and cameras ready, just waiting for the perfect video. This video, however, is much different.
At the end of March 2017, a massive fire underneath Atlanta’s I-85, a major highway that handles around 243,000 vehicles each day, caused a large section to collapse. Since then, it has left traffic in the area in rough shape, and Atlanta is already known for their bad traffic, especially ITP. That’s hip Atlanta terminology that stands for “Inside the Perimeter,” or inside of the 285 outer belt.
As harmless as it looks, dirt can be one of the biggest hazards on any construction site. It’s heavy and is bound to collapse without warning unless proper safety measures are taken into account. Landslides are essentially no different than trench collapses, without proper shoring or sloping, you could be putting worker’s lives in danger.
Nobody likes having something stolen from them, obviously, but some people are also more willing to go to extreme lengths to get their items back. Construction sites are hot targets for thieves, because there’s typically thousands of dollars worth of tools and material on site at any time. On one construction site in Dallas, an alleged thief thought he was going to snag a tool from the site and drive away safely, but several construction workers had a different thought in mind.
Early this year, a landslide caused catastrophic failure to the Pfeiffer Canyon Bridge along California’s famous Highway 1. California Transit officials closed the bridge on February 21st and announced it would be demolished and replaced. Time is of the essence as US News reports that over 400 residents are stranded on one side of the bridge and helicopters have had to bring in food for them. The residents are still able to use the footpaths in the area to cross the canyon.
Atlanta, GA has been busy recently updated their major sports facilities. The new Atlanta Falcon’s new $1.4 Billion football stadium just recently celebrated a milestone as contractors installed the final roof beam. That stadium is scheduled to open before the start of the 2017 NFL season. Before that, however, the Atlanta Braves’ new baseball stadium will officially open in time to kick off the MLB season, which starts on April 2nd.