Researcher Lauded for Superb Solution of Algorithmic Riddle from the 1950s

Road network with cars
Photo: Getty

Solving the riddle can reduce electric car battery consumption and make life tougher for currency speculators in the future. The discovery has just won the award for best research article and was honored at the field’s most prestigious conference in the United States.

For more than half a century, researchers around the world have been struggling with an algorithmic problem known as “the single source shortest path problem.” The problem is essentially about how to devise a mathematical recipe that best finds the shortest route between a node and all other nodes in a network, where there may be connections with negative weights.

Sound complicated? Possibly...

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Black Holes Don’t Always Power Gamma-Ray Bursts, new research shows

Image of an explosion in space
An artist’s impression of a gamma-ray burst powered by a neutron star. Credit: Nuria Jordana-Mitjans

Space scientists may need to rethink how gamma-ray bursts are formed after new research shows new-born supramassive stars, not black holes, are sometimes responsible for these huge extragalactic bursts of energy.

Gamma-ray bursts (GRBs) have been detected by satellites orbiting Earth as luminous flashes of the most energetic gamma-ray radiation lasting milliseconds to hundreds of seconds. These catastrophic blasts occur in distant galaxies, billions of light years from Earth.

A sub-type of GRB known as a short-duration GRB starts life when two neutron stars collide...

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Designing and Programming Living Computers

Conceptual illustration: bacterial cells as artificial neural circuits

Transforming bacterial cells into living artificial neural circuits; applications include biomanufacturing and therapeutics. Bringing together concepts from electrical engineering and bioengineering tools, Technion and MIT scientists collaborated to produce cells engineered to compute sophisticated functions – “biocomputers” of sorts. Graduate students and researchers from Technion – Israel Institute of Technology Professor Ramez Daniel’s Laboratory for Synthetic Biology & Bioelectronics worked together with Professor Ron Weiss from the Massachusetts Institute of Technology to create genetic “devices” designed to perform computations like artificial neural circuits...

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2400 New Eyes on the Sky to see Cosmic Rainbows

The new instrument for capturing cosmic rainbows mounted on the top of the Subaru Telescope. (Credit: Kavli IPMU)

The Subaru Telescope successfully demonstrated engineering first light with a new instrument that will use about 2400 fiberoptic cables to capture the light from heavenly objects. Full operation is scheduled to start around 2024. The ability to observe thousands of objects simultaneously will provide unprecedented amounts of data to fuel Big Data Astronomy in the coming decade.

In addition to cameras, astronomers also use instruments known as spectrographs to study celestial object. A spectrograph breaks the light from an object into its component colors, in other words it creates a precise rainbow...

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