World’s largest earthquake damper
A tuned mass damper, also known as a harmonic absorber, is a device mounted in structures to reduce the amplitude of mechanical vibrations. Their application can prevent discomfort, damage, or outright structural failure. They are frequently used in power transmission, automobiles, and buildings.(source:Wikipedia)
This 728 tons steel pendulum is installed in one of the world’s tallest buildings, the taipei 101 in Taiwan. It helps stabilize the building in case of strong winds and earthquakes, through simple mechanics, when the building moves in a direction it swings in the opposite direction reducing movement by 40%. You can understand how it works by looking at the small GIF image.
It cost $4 million to install the huge damper in the skyscraper but architects and engineers said it had to be done. It spans across 4 of the building’s stories and it was assembled on site because it couldn’t be lifted by a crane, due to its enormous weight.
Here’s a video of the damper in action, on May 12th,2008, when a horrific earthquake hit one of China’s provinces and the tremors reached as gar as Taipei. As the building started to shake, people ran towards the center to see the damper in action, it did it’s job.
Peter Jackson has just dropped the first The Hobbit: The Battle of the Five Armies poster on Facebook.
With school starting up all too soon (sorry for the reminder) I figured it was a good time for my etsy shop To Boldly Hold to have another giveaway,
There will be TWO prizes: ONE custom backpack and ONE messenger bag with the fabric of your choice!
There will be TWO winners selected. The first winner has their pick between backpack and messenger bag; the second winner receives what the first does not select.
To enter you are allowed ONE REBLOG and ONE LIKE per day. Each note gets you one entry and I’ll use a random number generator to pick the winner. (I’m not responsible for any tumblr fuckary i.e. lost reblog’s or likes.)
You do not have to follow me to enter- however, if you like Star Trek enough to use one of these bags, I’d say you have a good chance of liking my blog.
The giveaway will close on Friday August 15th at 9PM PST. The winner will be tagged in a post and I’ll also send an ask, so be sure yours is open. The winners will have 24 hours to respond to the message. If I don’t receive a response within 24 hours, I will select another recipient.