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Jyoti Q Dahiya
19,384 followers -
"Space, the final front ear!"
"Space, the final front ear!"

19,384 followers
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Jyoti Q Dahiya's posts

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Cool stuff | Famous places, from unexpected viewpoints

This set of photos will give you a new perspective on famous and not-so-famous-but-should-be places.

Via +Aunty Acid

#CoolStuff #FamousPlaces

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Space | Eclipse

The picture is that of a white-light image of the solar corona at the point of totality of a solar eclipse. You can see solar prominences and bits of the sun peeking through the valleys of the Moon (at the edges). The latter are called Bailey's Beads.

Also check out the post by +Sophia Nasr, in case you are in the path of totality and plan to take photos.

#space #SolarEclipse
Get Your Images/Videos of #GreatAmericanEclipse Featured on my Blog! Please share!

Here's your chance to have your images and videos shared with the world! Send me your images and videos and I'll feature them in a blog post after the Eclipse!!

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Space | The past 100 years

+Ethan Siegel, science writer and professional astronomer, brings us his pick of the 11 scientific advances, one each for each decade since the start of the 20th century, which have most changed the way we see the night sky (and the day sky; but don't look at the Sun directly).

#space #discoveries #astronomy #GeneralRelativity #DarkMatter #DarkEnergy #Exoplanets #Einstein
“The scientific story is not yet done, as there’s so much more of the Universe still to discover. Yet these 11 steps have taken us from a Universe of unknown age, no bigger than our own galaxy, made up mostly of stars, to an expanding, cooling Universe powered by dark matter, dark energy and our own normal matter, teeming with potentially habitable planets and that’s 13.8 billion years old, originating in a Big Bang which itself was set up by cosmic inflation. We know our Universe’s origin, it’s fate, what it looks like today, and how it came to be this way. May the next 100 years hold just as many scientific advances, revolutions, and surprises for us all.”

100 years ago, our conception of the Universe was so small it’s almost laughable. We still were mired in Newtonian thought, conceiving only of the stars within our own Milky Way, with a Universe that was perceived as static and unchanging, and where the stars which made it up perhaps even lived forever. Yet today, we have a Universe that’s expanding, cooling, full of dark matter and dark energy, and had a birthday 13.8 billion years ago: the Big Bang. More than that, we’ve been able to determine exactly how big the Universe is, where it came from, what happened before the Big Bang, and what its fate is today. We know how the elements were formed, how the stars live and die, what the Universe looks like on the largest scales, and how it got to be the way it is today.

How did this happen? One step of scientific investigation at a time! Here are the biggest jumps forward in each decade, going back 100 years.

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Space | Nebulas

Nebula is a very generic term in astronomy. It means little cloud, and can refer to anything, from the giant spiral galaxy Andromeda, to a huge dense (relatively speaking, of course) gas region that spawns new stars, to the remnant of a supernova (a star that blew up).

This is a close up of a section of the Veil Nebula, a supernova produced glowing front of matter and energy that looks awesomely and achingly beautiful in photographs.

Via +Alan Brown

#space #VeilNebula #Witch'sBroomNebula
The Veil Nebula

This image shows a small section of the Veil Nebula, as it was observed by the NASA/ESA Hubble Space Telescope. This section of the outer shell of the famous supernova remnant is in a region known as NGC 6960 or — more colloquially — the Witch’s Broom Nebula.

Credit:

NASA, ESA, Hubble Heritage Team
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Space | A small galaxy

Small is a relative, term, of course, because even this 'small' galaxy is host to millions of stars, and it's nearby, but still 12 million light years away....

Via +Astronomy Picture of the Day (APoD)

#space #galaxy
NGC 4449: Close-up of a Small Galaxy
Image Credit & Copyright: Data - Hubble Legacy Archive, +European Space Agency, ESA, +NASA; Processing - Domingo Pestana Galvan, Raul Villaverde Fraile
https://apod.nasa.gov/apod/ap170714.html

(xxxedit and linkxxx) Grand spiral galaxies often seem to get all the glory. Their young, blue star clusters and pink star forming regions along sweeping spiral arms are guaranteed to attract attention. But small irregular galaxies form stars too, like NGC 4449, about 12 million light-years distant. Less than 20,000 light-years across, the small island universe is similar in size, and often compared to our Milky Way's satellite galaxy, the Large Magellanic Cloud (LMC). This remarkable Hubble Space Telescope close-up of the well-studied galaxy was reprocessed to highlight the telltale reddish glow of hydrogen gas. The glow traces NGC 4449's widespread star forming regions, some even larger than those in the LMC, with enormous interstellar arcs and bubbles blown by short-lived, massive stars. NGC 4449 is a member of a group of galaxies found in the constellation Canes Venatici. It also holds the distinction of being the first dwarf galaxy with an identified tidal star stream.
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Space | Earth

There are some geographical features on our favourite planet that are visible from low Earth orbit. This one, the remains of an ancient, eroded volcano, show magma tubes that solidified in radial patterns.

Via +Vicky Veritas, from +European Space Agency, ESA

#space #Earth #geology
Download the high-res #Sentinel-2B image of #Pilanesberg, featured in this week's #EarthFromSpace:
http://www.esa.int/spaceinimages/Images/2017/07/Pilanesberg_South_Africa

Credit: contains modified Copernicus Sentinel data (2017), processed by ESA, CC BY-SA 3.0 IGO
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Medical electronics | Testing babies for hearing loss

A device that functions reliably in the noisy surroundings of hospitals, and that is cheap and accurate, the Sohum is planned for testing babies for hearing loss in India. Currently, most such testing is too late for medical interventions, and correction of the conditions that underlie hearing loss becomes increasingly difficult.

Thanks to +Kam-Yung Soh for the find, and for tagging me.

#BioStuff #MedicalElectronics #HearingLoss #HearingTest
Wishing the team all the best in manufacturing this screening device. "An innovative and affordable infant hearing screening device was launched in New Delhi this week. Nature India intern Kate Telma, from the Graduate Program in Science Writing at the Massachusetts Institute of Technology (MIT), attended the launch and came back educated about the significance and necessity of auditory screening for newborns.

Here’s her guest post about the device Sohum, whose name comes from Vedic philosophy – the Sanskrit meaning closely reflecting the Universe’s response to a child’s first cry.
[...]
Each year, 800,000 babies are born with hearing loss — 100,000 of them in India. Roughly 90% of children with hearing impairments in the first month of life are born in low- and middle- income countries. Children in these settings are also more likely to have ear infections or meningitis, other causes for hearing loss that contribute to compromised education and employment later in life.

Ideally, hearing deficits would be detected by three months of age; by six months, the child is fitted with hearing aids or cochlear implant. Currently, hearing loss is diagnosed around age 4, and often much later. Most times, this is too late for effective intervention.
[...]
The device is expected to be made available to hospitals and primary care centres across India, with plans to reach out to maternity centres and vaccination camps to screen babies born at home. Balram Bhargava, the SIB executive director had a word of advice for the Sohum team. “You will have to manufacture fast,” he said, because the need and demand are clear."

+Harish Pillay +Jyoti Q Dahiya

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Space | Mars

Mars in technicolour. The colours represent different rocks and minerals:

The colors observed in this picture represent different rocks and minerals, now exposed on the surface. Blue in HiRISE infrared color images generally depicts iron-rich minerals, like olivine and pyroxene. Lighter colors, such as yellow, indicate the presence of altered rocks.

Via +NASA

#space #mars

[Edited for more details on the colours. Do read the article if you want to know more about the science possible from these photos.]
Mars in technicolor! A blanket of debris from an impact on Mars can be seen in colors representing various rocks and minerals. Take a closer look: http://go.nasa.gov/2unpEqd
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Stories on Google+ | JT Pearson

Smashwords has a lot of free stories till 31 July 2017.

This is one of them. Recommended for those who like their humour dark or their horror funny, with a seasoning of science fiction.

#StoriesOnGooglePlus #ScienceFiction #Horror #Humour #ShortStory #JTPearson

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Stories on Google+ | Colin D Grimes

Smashwords has free stories/books till 31 July 2017.

This is one of them.

How long can you keep replaying the same 'level' by time travelling?

#StoriesOnGooglePlus #BookReview #ShortStory #ScienceFiction #ColinDGrimes
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