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Messages - saikat07

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16
EEE / This year’s SN 10 enjoy the journey, not just the discovery
« on: February 28, 2020, 09:54:14 PM »
After nearly four years of painstaking work, in 1902 Marie Curie produced one-tenth of a gram of radium chloride from several tons of uranium ore. It took her another eight years to isolate pure radium. The effort won her a second Nobel Prize and cemented her legacy as one of science’s most tenacious minds. “One never notices what has been done; one can only see what remains to be done,” Curie once wrote to her brother, Józef Skłodowski.

Doing science, and doing it well, can be frustrating, tedious and messy. There are long days at the computer, finicky experimental setups, do-overs and dead ends. And for one researcher featured on the pages that follow — digging into goat poop. Yet this year’s SN 10: Scientists to Watch appear to take it in stride. Why? They enjoy the work.

For the fifth consecutive year, Science News is spotlighting 10 early- and mid-career scientists who are persistent enough to make headway on science’s big questions. Some are tackling problems of societal importance: studying how climate change will affect food supplies, for example, or trying to make education more equitable. Others are seeking knowledge to answer fundamental questions, such as how the chemistry of space gives rise to the chemistry of life. Members of this year’s group are developing new tools to see deep into cells or into the mind, and are finding new routes to green fuels (thank you, goats)

17
EEE / A new image reveals the structure of the cosmic web
« on: February 28, 2020, 09:53:46 PM »
Like an ethereal cosmic spider web, filaments of gas form a complex, interconnected structure that links galaxies to one another. But, just as whisper-thin threads of spider silk can be nearly invisible, this cosmic web is faint and difficult to detect. Now astronomers have made the first detailed picture of light emitted by the gas. The newly revealed filaments extend for millions of light-years, researchers report in the Oct. 4 Science.

Computer simulations predicted the existence of the cosmic web, and astronomers previously have caught glimpses of a single filament (SN: 1/20/14). But scientists hadn’t seen the network stretching between multiple galaxies until now. “Finally, we actually have a picture,” says astrophysicist Michele Fumagalli of Durham University in England.

Fumagalli and colleagues studied a region of the sky that contains a protocluster of galaxies — a region where a large cohort of galaxies is beginning to assemble. Galaxies within the cluster emit ultraviolet light, a result of new stars forming inside or of churning regions around supermassive black holes at the galaxies’ centers. The filaments of gas absorb that light and reemit it. Using the European Southern Observatory’s Very Large Telescope in Chile, the astronomers detected the reemitted light.

After the Big Bang 13.8 billion years ago, scientists believe that gravity caused matter to collapse into sheets and filaments. In regions where the matter was especially dense, galaxies formed, feeding on gas from the cosmic web. The new picture of the filaments supports this origin story.

18
EEE / Re: Voltage Divider
« on: February 28, 2020, 09:37:27 PM »
Thanks for sharing

19
EEE / Re: Regulated Power Supply: Circuit Diagram & Types
« on: February 28, 2020, 09:37:21 PM »
Thanks for sharing

20
EEE / Re: Automated room temperature controller
« on: February 28, 2020, 09:37:15 PM »
Thanks for sharing

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EEE / Re: Degradable electronic components created from corn starch
« on: February 28, 2020, 09:36:52 PM »
Thanks for sharing

24
EEE / Re: Researchers build a toolbox for synthetic biology
« on: February 28, 2020, 09:36:27 PM »
Thanks for sharing

25
EEE / Re: Making a wire-free future
« on: February 28, 2020, 09:36:20 PM »
Thanks for sharing

26
Thanks for sharing

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Thanks for sharing

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EEE / Re: An Overview of Power Sector of Bangladesh
« on: February 28, 2020, 09:35:50 PM »
Thanks for sharing

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EEE / Re: Basic on thermal power plant
« on: February 28, 2020, 09:35:42 PM »
Thanks for sharing

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EEE / Re: EEG Measurement
« on: February 28, 2020, 09:35:13 PM »
Thanks for sharing

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