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Category: transportation – Page 59

How AI is fixing traffic lights | Project Green Light

We’re using AI and Google Maps driving trends to optimize traffic light patterns and improve traffic flow. Stop-and-go traffic in urban areas causes 29 times more emissions than on open roads. Researchers at Google are partnering with cities around the globe, from Rio to Jakarta. So far, local governments have saved fuel and lowered emissions for nearly 30 million car rides every month. Learn more about this research at: https://g.co/research/greenlight.

If you are a city representative or traffic engineer and are interested in joining the waiting list, please complete this form: https://docs.google.com/forms/d/e/1FA…

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Unlike the Concorde

Boom Supersonic has taken another step towards its ambitious goal of reintroducing commercial supersonic air travel by the end of this decade. The Colorado-based company released key updates on Tuesday regarding its flagship Overture aircraft and the Symphony engine that will power the supersonic commercial jet. This comes a month after Boom Supersonic officially inaugurated its state-of-the-art factory located at the Piedmont Triad International Airport in Greensboro, North Carolina. The American company chose the Farnborough International Airshow in the UK to reveal Overture’s cutting-edge flight deck, which is built around technology developed by partner Honeywell.

“As we stand here at Farnborough in 2024, it’s now been two decades since either Boeing or Airbus has launched an all-new airliner programme,” said Chief Executive Blake Scholl. “We’re in danger of going a generation without new airliners. We’ve stopped progressing and, in many ways, we’ve gone backwards. It’s never been more clear that passengers and airlines are not well-served by the duopoly we have today.”

According to the information revealed by Boom, Overture’s state-of-the-art flight deck runs on Honeywell’s Anthem avionics suite. Electric vertical takeoff and landing (eVTOL) aircraft manufacturers Lilium and Vertical Aerospace have also gone with the same futuristic system. Boom claims Overture would be the commercial jet to feature dual-force feedback sidesticks, which will give a tactile feel to the pilots of how the aircraft is flying. “Overture’s fly-by-wire system sends artificial feel to the stick, giving the pilot a tactile stick and rudder experience,” Scholl added.

Officials break ground on world’s longest underwater rail tunnel connecting 2 major cities: ‘A milestone in … history’

Construction has begun on what will be the world’s largest underwater road and rail tunnel connecting Denmark and Germany, as Newsweek reported.

The tunnel, which is a major component of the European Union’s Scandinavian-Mediterranean corridor plan, runs beneath the Fehmarn strait for more than 11 miles and aims to cut travel times between the two countries. A 45-minute ferry ride may soon be reduced to a quick seven-minute train commute.

Denmark’s transport minister, Thomas Danielsen, called the project “a milestone in Danish history” at a ceremony celebrating the progress, per the report. He continued, “With the Fehmarnbelt tunnel, we get a fantastic and cross-border infrastructure project.”

New method for 3D quantitative phase imaging eliminates need for digital phase recovery algorithms

QPI is a powerful technique that reveals variations in optical path length caused by weakly scattering samples, enabling the generation of high-contrast images of transparent specimens. Traditional 3D QPI methods, while effective, are limited by the need for multiple illumination angles and extensive digital post-processing for 3D , which can be time-consuming and computationally intensive.

In this innovative study, the research team developed a wavelength-multiplexed diffractive optical processor capable of all-optically transforming distributions of multiple 2D objects at various axial positions into intensity patterns, each encoded at a unique wavelength channel.

This allows for the capture of quantitative phase images of input objects located at different axial planes using an intensity-only image sensor, eliminating the need for digital phase recovery algorithms.

Carving Out Nanostructures Beneath the Surface of Silicon

Modern computer chips can have features built on a nanometer scale. Until now it has been possible to form such small structures only on top of a silicon wafer, but a new technique can now create nanoscale features in a layer below the surface. The approach has promising applications in both photonics and electronics, say its inventors, and could one day enable the fabrication of 3D structures throughout the bulk of the wafer.

The technique relies on the fact that silicon is transparent to certain wavelengths of light. This means the right kind of laser can travel through the surface of the wafer and interact with the silicon below. But designing a laser that can pass through the surface without causing damage and still carry out precise nanoscale fabrication below is not simple.

Researchers from Bilkent University in Ankara, Türkiye, achieved this by using spatial light modulation to create a needlelike laser beam that gave them greater control over where the beam’s energy was deposited. By exploiting physical interactions between the laser light and the silicon, they were able to fabricate lines and planes with different optical properties that could be combined to create nanophotonic elements below the surface.

Beyond AI: Building toward artificial consciousness — Part 2

Beyond the hype surrounding artificial intelligence (AI) in the enterprise lies the next step—artificial consciousness. The first piece in this practical AI innovation series outlined the requirements for this technology, which delved deeply into compute power—the core capability necessary to enable artificial consciousness. This piece looks at the control and storage technologies and requirements that are not only necessary for enterprise AI deployment but also essential to achieve the state of artificial consciousness.

Controlling unprecedented compute power

While artificial consciousness is impossible without a dramatic rise in compute capacity, that is only part of the challenge. Organizations must harness that compute power with the proper control plane nodes—the familiar backbone of the high availability server clusters necessary to deliver that power. This is essential for managing and orchestrating complex computing environments efficiently.

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