Workers have started the construction of London’s “super sewer” in an effort to reduce the waste that goes into the Thames river. The project’s goal is to address the waste problem that the city has especially with its growing population. Currently, a hole is being dug at the new tunnel’s center.According to City A.M., workers from Tideway have started digging a 30-meter diameter hole to mark the new tunnel’s central point. The hole is as big as the dome at St Paul’s Cathedral while the tunnel has a length of 16 miles.Just this year, about 1.2 million tons of sewage waste has been dumped straight into the Thames river due to the fact that the old Victorian sewers can’t handle the huge amount of waste that flows through it. BBC reported that the old tunnels’ waste would overflow to the river even if it would just rain for a few millimeters.The proposal for the Thames Tideway Tunnel isn’t a recent one because it has been floating in the air since 2005. However, there were some issues that needed to be clarified with regards to the contracts so the go-signal for the project’s construction was given on February 2015.
7 Animated GIFs That Will Make You Instantly Understand TrigonometryWalter Hickey May 13, 2013, 12:59 PM 227,380 20FACEBOOKLINKEDINTWITTEREMAILPRINTTrigonometry is the branch of math that studies triangles, with a particular focus on the relationships between angles and the lengths of corresponding sides.Interestingly enough, the trigonometric functions that define those relationships are also closely tied to circles.Needless to say, this makes trig one of the hardest topics in math for students to grasp intuitively.Part of that is the way it’s taught. Students are taught the “unit circle” and its relationship to trigonometry, but many fail to make the leap on how crucial circles are for trig functions.With static graphs and equations, it’s possible to get a handle on the rules of what various functions do and mean. However, it’s still hard to get an intuitive sense of the relationship between the circle and the trigonometric functions and the triangles.That all changes with animated GIFs. Change over time is crucial to understanding trig. With pictures like these — found on Imgur from an album linked in Reddit’s peerless Math subreddit — trig becomes a breeze.
In life, we always find ourselves in front of choices. Just this morning, I had to choose whether to drive my car to work or book a ride. Then, I had to choose whether to make myself an Americano or a cappuccino. Later today, I will have to choose between having salad for lunch or going for a sandwich. I expect that as soon as I arrive home, I will have to choose between taking a nap and going straight to the gym.We’re free to make choices – that’s part of being human in this day and age. But aside from what to eat, what to drink, how to go to the office or whether to exercise or not, perhaps the most important choice we have to make is what to make of our lives. Do we want to take up an active role in changing the world? Do we want to sit on the fence and watch other people do it? Or do we want not to care about anything at all?In most of my public speaking engagements in engineering conferences, I always break the ice by telling my audience how I believe that engineers, be they electrical, mechanical, civil, electronics, or chemical (of course, the list goes infinitely long), are the real superheroes of this world. But perhaps I have to clarify myself. I will tell you why in a bit.Image Source: RedditSee, from my more than 18 years of experience in the engineering industry, I have worked with more than a hundred engineers of a wide gamut of specializations.
Based on experience, I can say that there are actually three types of engineers:
1. Engineers who make things happen.
2. Engineers who watch things happen.
3. Engineers who says “WTF just happened?”
Courtesy / Source: GineersNow | 3 types of engineers
What is Urban Resilience?Urban Resilience is the capacity of individuals, communities, institutions, businesses, and systems within a city to survive, adapt, and grow no matter what kinds of chronic stresses and acute shocks they experience.CHRONIC STRESSESStresses weaken the fabric of a city on a daily or cyclical basis.Examples include:high unemploymentovertaxed or inefficient public transportation systemendemic violencechronic food and water shortages.ACUTE SHOCKSAcute shocks are sudden, sharp events that threaten a city.Examples include:earthquakesfloodsdisease outbreaksterrorist attacks
The battle to reduce traffic fatalities may have hit a roadblock after showing impressive results over the past several years. The latest federal estimates show an 8 percent uptick in traffic deaths over the first half of 2015 compared to the prior year. While the projection covers a short time period, it’s the highest first-half tally since 2009.Traffic safety advocates point to two main factors behind the increase. One is the improving economy, as Americans are traveling more. The other likely culprit is the wide variance in state laws that, according to advocates, aren’t doing nearly enough to curb fatalities.When the economy took a downturn, so too did traffic deaths. But economic recoveries generally coincide with higher fatality rates because families have more discretionary income, take extra vacations and travel more on weekends. Parents also tend to purchase more cars for teenagers, who face the highest risk of accidents.
Source: Why Are Traffic Deaths Rising?