Posts tagged new york city
Grand Central Terminal in New York City is celebrating its 100th anniversary. More than a landmark and a transportation hub, Grand Central has become an icon of the modern era, a symbol of a city always in motion. Open the gallery to get immersed in a historic tour of New York’s landmark.
in case you missed it…
Join Trace as he calls out the fake photos of Hurricane Sandy, gets creeped out by a ghost nebula and finally explains how the giant moai statues were moved around on Easter Island!
sorry to hurt your feelings social media, but these all be fake.
As Hurricane Sandy clobbered the the most populated region of the United States, many people took to social media and the Internet to receive and circulate information about what experts called a 100-year storm.
As is typically the case with natural disasters — especially in this digital age — viral photos quickly put a face on the catastrophe. However, it turns out many of the most popular images pinballing around the Internet during the storm were either fake or outdated. Even major media outlets got duped.
Most people know Nikola Tesla, the eccentric and brilliant man who arrived in New York City in 1884, as the father of alternating current, the form of electricity that supplies power to almost all homes and businesses. But Tesla was a prodigious inventor who applied his genius to a wide range of practical problems. All told, he held 272 patents in 25 countries, with 112 patents in the United States alone. You might think that, of all this work, Tesla would have held his inventions in electrical engineering — those that described a complete system of generators, transformers, transmission lines, motor and lighting — dearest to his heart. But in 1913, Tesla received a patent for what he described as his most important invention. That invention was a turbine, known today as the Tesla turbine, the boundary layer turbine or the flat-disk turbine.
Interestingly, using the word “turbine” to describe Tesla’s invention seems a bit misleading. That’s because most people think of a turbine as a shaft with blades — like fan blades — attached to it. In fact, Webster’s dictionary defines a turbine as an engine turned by the force of gas or water on fan blades. But the Tesla turbine doesn’t have any blades. It has a series of closely packed parallel disks attached to a shaft and arranged within a sealed chamber. When a fluid is allowed to enter the chamber and pass between the disks, the disks turn, which in turn rotates the shaft. This rotary motion can be used in a variety of ways, from powering pumps, blowers and compressors to running cars and airplanes. In fact, Tesla claimed that the turbine was the most efficient and the most simply designed rotary engine ever designed.
If this is true, why hasn’t the Tesla turbine enjoyed more widespread use? Why hasn’t it become as ubiquitous as Tesla’s other masterpiece, AC power transmission? These are important questions, but they’re secondary to more fundamental questions, such as how does the Tesla turbine work and what makes the technology so innovative? We’ll answer all of these questions on the next few pages. But first, we need to review some basics about the different types of engines developed over the years.
it said tesla. i got excited. i do not regret my actions.
Amazing technology would allow for underground parks in NYC
If you’ve been to Manhattan in the past several years, you may have heard of the Highline in Chelsea. It’s a project that converted an abandoned above-ground railroad track into a park, and it has turned the formerly underdeveloped area around it into one of the trendiest new neighborhoods in the city; if you visit Manhattan, you have to check it out. Anyway, two architects want to build a park that will do for the Lower East Side what the Highline did for Chelsea, but with a twist: they want to build it underground!
If you’ve been to Manhattan ever, you’ll also know that space is at a premium, and there are few open spaces left to grow leafy green things or build a park. Dubbed the LowLine, the project would convert an old underground trolley car station, abandoned in 1948 and untouched since, into a 1.5 acre underground park. But how? This is where the science comes in: they’ve developed the technology to transmit sunlight underground. Using large parabolic mirrors and a fiber optic relay, sunlight from the surface would be shuttled to the park and then redisbursed, allegedly yielding enough light for photosynthesis. As shown in the artist’s renderings above, the park could house trees, grass, farmers markets, or art installations, all year round, rain or shine. The architects raised money on Kickstarter for a proof-of-concept exhibition, happening RIGHT NOW in the Essex Street Market in NYC, and they’re doing battle with the city and the transit authority that owns the underground depot for approval. Here’s to hoping the city bureaucrats see the light! *slaps knee*
this looks beautiful, but how would it smell? hopefully not like a musty, damp basement.
Either way i’d still visit.
No one can predict how 9/11 will be remembered because the history is still being written.
While Americans have an admirable tendency to focus on the positive, historians say it’s critical to also remember tragedy.
Remember where you were that day, think about what you saw, heard and felt, but also remember that we are still here. We are still striving, succeeding, failing, working, loving and listening.
We carry the memory of those lost with us.
We are Americans and we will continue.
(Photo by Stephen Nessen)
Since it opened on September 11 of last year, more than 4.5 million visitors have entered the National 9/11 Memorial to observe the reflecting pools in the footprint of the World Trade Center. But what does the memorial say about us?
beautiful and sad.
this situation pushes a range of emotions.
Tomorrow will mark the 11th anniversary of the attacks of September 11, 2001. After years of effort and numerous setbacks, three of the proposed seven towers to be built at the World Trade Center complex have “topped out,” reaching their structural maximum height. Seven WTC was completed in 2006, Four WTC topped out in June of this year, and the tallest, One World Trade Center (formerly known as Freedom Tower), just topped out at 104 floors on August 30.
Financial difficulties have left the future of the remaining towers in doubt, and have raised concerns about the still-incomplete National September 11 Memorial and Museum, as the foundation that runs the memorial estimates that it will cost $60 million a year to operate.
See more. [Images: Reuters, AP]