Search

The article focuses on the efficiency of miniature stretchable dye laser in spectroscopy. These lasers had been developed for use in the visible spectrum. With this, researchers at the California Institute of Technology in Pasadena, California have created a stretchable optofluidic dye or commonly known as laser on a chip. It is made of polydimethysiloxane polymer that changes the period of distributed-feedback geometry of the device.

The article discusses new findings relating to the astronomical object Variable 12, the visible outburst on a star in a nearby galaxy first discovered in 1954. For decades it remained unclear whether the star had survived the eruption. Many researchers concluded that the outburst, which came to be known as supernova 1954J, had indeed demolished the star. Last year, Schuyler D. Van Dyk of the California Institute of Technology in Pasadena and his colleagues used the Hubble Space Telescope to resolve the fuzzy patch into four stars. One of them is almost certainly the survivor of the outburst observed in 1954, Van Dyk says. According to astronomers, this evidence confirms that Variable 12 is indeed a supernova imposter that survived the 1954 eruption.

Focuses on the femtosecond spectroscopy developed by Ahmed Zeweil, a physical chemist at the California Institute of Technology. Award given to Zeweil for his invention; Information on Zeweil's method; Benefits of the method.