Archive for the science Category

A solar superstorm can make your lights go out. New maps released by the USGS show where the power is most likely to fail in the US

Posted in 2020, astronomy, science with tags , , , , , , , on April 9, 2020 by theboldcorsicanflame

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A solar superstorm can make your lights go out. New maps released by the USGS show where the power is most likely to fail: The Denver metropolitan area, the Pacific northwest, the Atlantic seaboard, and a cluster of Midwestern states near the US-Canadian Border.

Bright yellow and orange trace the trouble spots across the contiguous USA

Power companies have long been wary of the sun. Solar storms can cause strong electric currents to flow through commercial power lines–so strong that the lines can’t handle it.

Fuses blow, transformers melt, and circuit breakers trip. The most famous geomagnetic power outage happened during a space storm in March 1989 when six million people in Quebec lost power for 9 hours.

Whether or not *your* power goes out during a solar storm depends on two things: (1) The configuration of power lines in your area and (2) the electrical properties of the ground beneath your feet.

In areas of more electrically resistive rock, currents struggle to flow through the ground. Instead, they leap up into overhead power lines – a scenario that played out in Quebec in 1989.

The new maps are possible thanks to Earthscope–a National Science Foundation magnetotelluric survey of the upper 2/3rds of the contiguous USA. Earthscope mapped the electrical properties of deep rock and soil on a continent-spanning grid with points about 70 km apart. USGS researchers led by Greg Lucas and Jeffrey Love combined this information with the layout of modern power lines to estimate peak voltages during a century-class storm.


Sprawling power lines act like antennas, picking up currents and spreading the problem over a wide area.

They found a huge variation in hazard across the USA. “The largest estimated once-per-century geoelectric field is 27.2 V/km at a site located in Maine, while the lowest estimated once-per-century geoelectric field is 0.02 V/km at a site located in Idaho.

That is more than 3 orders of magnitude difference,” they wrote in their research paper “A 100‐year Geoelectric Hazard Analysis for the U.S. High‐Voltage Power Grid.” Notably, some of the most vulnerable regions are near big cities: Denver, Boston, New York, Philadelphia, Baltimore, and Washington, DC.

To complete the hazard map, the researchers are waiting for a new magnetotelluric survey to cover the rest of the USA. It can’t come soon enough. The last “century-class” geomagnetic storm hit in May 1921 … 99 years ago.

Sources:

https://spaceweather.com

And

https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2019SW002329

Irish scientists at Akara Robotics have developed a robotic technology to help keep hospitals clean of coronavirus!

Posted in 2020, Health, science with tags , , , on April 6, 2020 by theboldcorsicanflame

 

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A robot emitting ultraviolet light (UVC) with the ability to disinfect hospitals and get rid of the Covid-19 virus has been developed by a start-up attached to Trinity College Dublin.

Being able to clean healthcare facilities thoroughly and quickly is hugely demanding as coronavirus cases escalate.

Created by Akara Robotics, it is clinically proven to kill viruses, bacteria and harmful germs, and does so in a much shorter time compared to usual cleaning methods, according to its inventor Dr Conor McGinn.

 

Robot Violet was tested in an acute hospital in the Dublin area last week after Dr McGinn contacted the HSE indicating it would be effective in tackling the Covid-19 pandemic in healthcare settings. They are awaiting microbiological test results to confirm its effectiveness.

 

“This system could reduce dependency on the use of chemical-based solutions, which may be effective but requires rooms to be vacated for several hours during sterilisation, making them impractical for many parts of the hospital,” said Dr McGinn.

 

In addition, many pieces of high-tech equipment cannot be disinfected using “deep chemicals”, so manual cleaning is needed. Robot Violet is also effective in such circumstances, he said.

SOURCE ON

https://www.irishtimes.com/news/health/covid-19-virus-killing-robot-developed-by-tcd-start-up-1.4211037

Your brain hallucinates your conscious reality. Billions of neurons in your brain are working together to generate a conscious experience

Posted in 2020, Health, Mind, science with tags , , , on April 4, 2020 by theboldcorsicanflame
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Jill Bolte Taylor’s stroke of insight : A powerful story about how our brains define us & connect us to the world & to one another

Posted in 2020, Health, Mind, science with tags , , on April 4, 2020 by theboldcorsicanflame

http://www.ted.com Neuroanatomist Jill Bolte Taylor had an opportunity few brain scientists would wish for: One morning, she realized she was having a massive stroke. As it happened — as she felt her brain functions slip away one by one, speech, movement, understanding — she studied and remembered every moment. This is a powerful story about how our brains define us and connect us to the world and to one another.

Jill Bolte Taylor speaking at TED on February ...

Jill Bolte Taylor speaking at TED on February 27, 2008 (Photo credit: Wikipedia)

One morning in 1996, a blood vessel in Jill Bolte Taylor’s brain exploded. Within moments, her left lobe–the source of ego, analysis, judgement and context–began to fail her. And much to her shock, the Harvard-trained brain scientist felt great. She’d been given a ringside seat to her own stroke, and a host of powerful insights as a result. As Taylor shared with the audience at a recent TED conference, “I believe the more time we spend choosing to run the deep inner peace circuitry of our right hemispheres, the more peace we will project into the world, the more peaceful our planet will be.” Or as she put it another way to The New York Times last week, “Nirvana exists right now.” – 

Do you find my brain? - Auf der Suche nach mei...

Do you find my brain? – Auf der Suche nach meinem Gehirn (Photo credit: alles-schlumpf)

Ancient bones reveal Irish are not Celts after all !

Posted in 2020, science with tags , , on April 3, 2020 by theboldcorsicanflame

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DNA researchers found that the three skeletons found under Currie’s pub are the ancestors of modern Irish people and predate the Celts’ arrival on Irish shores by around 1,000 years…..!!!

Essentially, Irish DNA existed in Ireland before the Celts ever set foot on the island.

Instead, Irish ancestors may have come to Ireland from the Bible lands in the Middle East. They might have arrived in Ireland from the South Meditteranean and would have brought cattle, cereal, and ceramics with them.

The Proceedings of the National Academy of Science said that the bones strikingly resembled those of contemporary Irish, Scottish and Welsh people.

A retired archaeology professor at the highly-renowned University of Oxford said that the discovery could completely change the perception of Irish ancestry.

FULL ARTICLE ON

https://www.irishcentral.com/roots/history/ancient-bones-irish-celts

 

Tonight, Venus, the crescent Moon and the Pleiades will form a beautiful triangle in the western sunset sky.

Posted in 2020, astronomy, science with tags , , , on March 28, 2020 by theboldcorsicanflame

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Venus, the Moon, and the Pleiades converge on March 27th–the prelude to an even prettier conjunction on March 28th. Photo credit: Ruslan Merzlyakov of Nykøbing Mors, Denmark. [photo gallery]

 

Tonight, Venus, the crescent Moon and the Pleiades will form a beautiful triangle in the western sunset sky. The event kicks off a slow-motion conjunction between Venus and the Pleiades that will grow even more beautiful in the nights ahead. Visit Spaceweather.com for sky maps and observing tips.

Dyson developed & is producing ventilators to help treat COVID-19 patients. The company plans to produce 15,000 ventilators

Posted in 2020, Health, science with tags , , , on March 28, 2020 by theboldcorsicanflame

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Dyson — the British technology company best known for its high-powered vacuum cleaners, hair dryers, and fans — has designed a new ventilator, the “CoVent,” in the past several days, which it will be producing in order to help treat coronavirus patients.

The company reportedly developed the ventilator in 10 days based on Dyson’s existing digital motor technology. Dyson is still seeking regulatory approval in the UK for the rapidly designed device, but it’s already received an order from the UK Government for 10,000 ventilators, of which the National Health Service (NHS) is in dire need.

The CoVent is a bed-mounted and portable ventilator, with the option to run on battery power should the need arise.

“This new device can be manufactured quickly, efficiently and at volume,” company founder James Dyson noted in a letter to the company obtained by Fast Company, adding that the CoVent was “designed to address the specific clinical needs of Covid-19 patients.” Dyson also pledged in the letter to donate an additional 5,000 ventilators to “the international effort, 1,000 of which will go to the United Kingdom.”

FULL ARTICLE ON

https://www.theverge.com/2020/3/26/21195433/dyson-ventilators-covent-coronavirus-develop-produce-uk-nhs-donate-vacuum-motor

 

 

 

Scientists at the University of Massachusetts Amherst have developed a device that creates electricity from moisture in the air!

Posted in 2020, science with tags , , , , on February 18, 2020 by theboldcorsicanflame

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Scientists at the University of Massachusetts Amherst have developed a device that uses a natural protein to create electricity from moisture in the air, a new technology they say could have significant implications for the future of renewable energy, climate change and in the future of medicine.

As reported today in Nature, the laboratories of electrical engineer Jun Yao and microbiologist Derek Lovley at UMass Amherst have created a device they call an “Air-gen” or air-powered generator, with electrically conductive protein nanowires produced by the microbe Geobacter.

The Air-gen connects electrodes to the protein nanowires in such a way that electrical current is generated from the water vapor naturally present in the atmosphere.

TO BE CONTINUED ON

https://www.sciencedaily.com/releases/2020/02/200217112730.htm

 

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