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TELLTALE STARE: The luminosity of BL Lac observed on January 16, 2021 is about 250% of that seen on Oct 27, 2020, measured in terms of solar luminosity BENGALURU: Indian astronomers have reported one of the strongest flares from a feeding supermassive black hole or blazar called BL Lacertae, some 10 million light-years away. And, the analysis of the flare from this blazar — one of the oldest astronomical objects — can help trace the mass of the black hole and the source of this emission. T...

Team Of Indian Astronomers Detect One Of The Strongest Flares From Very Rare Supermassive Black Hole Source: SciTechDaily A team of Indian astronomers headed by Alok Chandra Gupta from the Aryabhatta Research Institute of Observational Sciences (ARIES) has reported BL Lacertae, which is one of the strongest flares from a feeding supermassive black hole, referred to as a blazar. It is considered to be one of the oldest astronomical objects and can assist in tracing the mass of the black hole and...

Spectacular Winning Images of The Life in Another Light Photo Contest 2020 “What changes when we switch to infrared, and which things remain constant? What beauty lies in the light that our eyes can’t see? We want the infrared photography community to answer these questions and more with complete photo essays as well as individual shots. Prizes will be awarded across 6 categories of infrared photography, and include over $11,000 in cash and infrared photography gear, with a grand prize of ...

Jangan sembarangan memilih kaca film, sebab akan berakibat fatal bagi keselamatan dan bisa mengurangi estetika.

It is non-ionizing radiation, things like microwave, low electronics, cell phone technology, visible light, that does not cause cancer. and the ionizing radiation, x-rays, gamma rays, ultraviolet spectrum, anything above visible light is what damages the dna and ultimately can cause cancer. >> keep the graphic up if you can. looking at this you see nonionizing, you see everything on the right. is there a great area at all here? there should be concerned? >> we need research in all this. the rese...

Says any tax dollars available go toward critical city services and thats it. supporters contend some of the mayors top priorities might be among the project that get the most votes. he says he hopes so and even he admits that participatory budgeting is getting more people involved by giving them more of a say in how their tax dollars are spent. shep? >> shepard: claudia cowan live in san francisco. if you cant see it, is it there? scientists say they are one step closer to making stuff invisibl...

It emits radiation all the time. should we be concerned about what comes from this? >> a microwave does not emit ionized radiation as were concerned that in japan. there are many forms of radiation, visible light, infrared and ionizing radiation. right now, our microwave tools, weve diminished the emission. but microwave is really used to move atoms quickly to heat them up. not the same kind. it has some risked but our tools -- >> i think the problem a lot of people have, there is a lot of infor...