Democritus
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Democritus
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Curated by Dimitris Tso
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Ozone hole at smallest size in decades | Earth Science | Science News

Ozone hole at smallest size in decades | Earth Science | Science News | Democritus | Scoop.it

There’s good news from Antarctica this fall: The seasonal hole in the ozone layer above the continent reached its smallest maximum extent and second smallest average in 20 years thanks to warm air temperatures.

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ScienceCasts: Fried Planets

Astronomers have caught a red giant star in the act of devouring one of its planets. It could be a preview of what will happen to Earth five billion years fr...
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21 Super Kids that Will Save the World from Adults

21 Super Kids that Will Save the World from Adults | Democritus | Scoop.it
These kids are much more impressive than you. If we adults can figure out how to raise more youngsters like this, we should be okay.
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Warp drive looks more promising than ever in recent NASA studies

Warp drive looks more promising than ever in recent NASA studies | Democritus | Scoop.it

"The first steps towards interstellar travel have been taken, but the stars are very far away. Voyager 1 is about 17 light-hours distant from Earth and is traveling with a velocity of 0.006 percent of light speed, meaning it will take about 17,000 years to travel one light-year. Fortunately, the elusive "warp drive" now appears to be evolving past difficulties with new theoretical advances and a NASA test rig under development to measure artificially generated warping of space-time."

 

This is a follow up to the news I published a few days ago and it is a much more detailed article. It is a great read if you won't to understand while, far from being a practical possibility yet, it is something theoretically possible. 


Via Szabolcs Kósa, olsen jay nelson, Guillaume Decugis, Patrice AFRIAT
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Big Meteoroid Boomerangs Around Earth - News from Sky & Telescope - SkyandTelescope.com

Big Meteoroid Boomerangs Around Earth - News from Sky & Telescope - SkyandTelescope.com | Democritus | Scoop.it
Late on September 21st, a bright fireball broke apart as it skimmed the atmosphere over northwestern Europe — then it became a temporary satellite, looping completely around the planet before its searing finale over eastern North America.
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Electronic Implants That Disappear - IEEE Spectrum

Electronic Implants That Disappear - IEEE Spectrum | Democritus | Scoop.it
Implants that dissolve in the body after they’ve done their work could solve biocompatibility problem...
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Ρωσία: Αναστέλλονται οι εισαγωγές γενετικά τροποποιημένου καλαμποκιού της Monsanto

Ρωσία: Αναστέλλονται οι εισαγωγές γενετικά τροποποιημένου καλαμποκιού της Monsanto | Democritus | Scoop.it
Την εισαγωγή γενετικά τροποποιημένου καλαμποκιού της αμερικανικής Monsanto ανέστειλε σήμερα η Ρωσία , ύστερα από τη...
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The Real World at Night

The Real World at Night | Democritus | Scoop.it

Earlier I have posted the classic image of "Earth Lights at Night," and discussed the classroom uses of the image.  This cartogram helps take that analysis one step further.  This cartogram helps students to visualize the magnitude of population (with the cartogram adjusting area for population) and then to see the patterns of energy use, global consumption and urbanization with in a new light. 

 

Tags: remote sensing, worldwide, consumption, poverty, population, spatial, political, regions.


Via Seth Dixon
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Matt Mallinson's comment, October 1, 2012 11:29 AM
This map is obviously not the actual size of countries, but it is in a way. The populations of China and India are so great compared to the rest of the world and this map shows that.
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Stuxnet: Anatomy of a Computer Virus

An infographic dissecting the nature and ramifications of Stuxnet, the first weapon made entirely out of code.
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Τα αντιοξειδωτικά τονώνουν το σπέρμα

Τα αντιοξειδωτικά τονώνουν το σπέρμα | Democritus | Scoop.it
Περισσότερες πιθανότητες να βιώσουν την πατρότητα έχουν οι άνδρες άνω των 45 ετών οι οποίοι ακολουθούν διατροφή πλούσια σε αντιοξειδωτικές ουσίες, υποστηρίζει νέα αμερικανική μελέτη....
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Design help for drug cocktails for HIV patients: Mathematical model helps design efficient multi-drug therapies

Design help for drug cocktails for HIV patients: Mathematical model helps design efficient multi-drug therapies | Democritus | Scoop.it
For years, doctors treating those with HIV have recognized a relationship between how faithfully patients take the drugs they prescribe, and how likely the virus is to develop drug resistance.
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Hot spots pinpointed as earthquake trigger points: Small droplets of friction-generated melts can lead to 'megaquakes'

Hot spots pinpointed as earthquake trigger points: Small droplets of friction-generated melts can lead to 'megaquakes' | Democritus | Scoop.it
Scientists have come a step closer to deciphering some of the basic mysteries and mechanisms behind earthquakes and how average-sized earthquakes may evolve into massive earthquakes.
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Συντήρηση Καρυάτιδων με λέιζερ

Συντήρηση Καρυάτιδων με λέιζερ | Democritus | Scoop.it

Με το Διεθνές Βραβείο Keck για την ανάδειξη της πολιτισμικής κληρονομίας τιμήθηκαν από κοινού το Ινστιτούτο Ηλεκτρονικής Δομής και Λέιζερ (ΙΗΔΛ) του ΙΤΕ και το Μουσείο της Ακρόπολης από το Διεθνές Ινστιτούτο Συντήρησης (International Institute for Conservation IIC). Το βραβείο απονεμήθηκε για την συντήρηση των Καρυάτιδων με διεθνώς πρωτοποριακή τεχνολογία λέιζερ που έχει αναπτυχθεί στο ΙΤΕ.

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NASA Sees Entire Sun, SDO Gives 360 Degree View | Space

NASA Sees Entire Sun, SDO Gives 360 Degree View | Space | Democritus | Scoop.it

Each of these images was captured from a different perspective by one of NASA’s Solar Terrestrial Relations Observatory (STEREO) spacecraft on Oct. 14, 2012.

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Το δράμα των προληπτικών καρδιολογικών εξετάσεων στα παιδιά και στους νέους « Metavolismos

Το δράμα των προληπτικών καρδιολογικών εξετάσεων στα παιδιά και στους νέους «  Metavolismos | Democritus | Scoop.it

«Ο καλύτερος γιατρός είναι αυτός που προλαβαίνει τη νόσο» λέει μια παλιά κινέζικη παροιμία. Το ίδιο νόημα είχε και η ρήση του Ιπποκράτη. Στη σύγχρονη Ιατρική είναι τεκμηριωμένο πως η πρόληψη προσφέρει πολύ μεγαλύτερο όφελος από τη θεραπεία και με πολύ μικρότερο οικονομικό κόστος. Όταν όμως με πρόσχημα την «πρόληψη» γίνεται κατάχρηση διαγνωστικών εξετάσεων και φαρμακευτικής αγωγής το αποτέλεσμα είναι ακριβώς το αντίθετο....

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Διερευνητική Μάθηση

H ΔΙΕΡΕΥΝΗΤΙΚΗ ΜΑΘΗΣΗ αναπτύσσει και παρέχει εκπαιδευτικά προϊόντα για όλες τις βαθμίδες εκπαίδευσης. • Εκπαιδευτικό υλικό για την διδασκαλία των Μαθηματικών, Φυσικών Επιστημών, Αγωγής Υγείας, της Ανατομίας Ανθρώπου, Φυτών, Ζώων, την Περιβαλλοντική Εκπαίδευση, την Τεχνολογία και τις Εναλλακτικές Πηγές Ενέργειας, τα Αγγλικά, τον Αθλητισμό, τα Καλλιτεχνικά. • Εκπαιδευτικό υλικό για τους μαθητές και τους Δασκάλους που συνοδεύονται από οδηγίες χρήσεως στην Ελληνική Γλώσσα.

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The Most Stunning Astronomy Photos of the Year

The Most Stunning Astronomy Photos of the Year | Democritus | Scoop.it
M51 or the Whirlpool is the archetypal spiral galaxy and for centuries astronomers have studied it in order to understand how galaxies form and evolve. Here the photographer has made use of exceptionally stable atmospheric ...

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Electrifying Burning Man - IEEE Spectrum

Electrifying Burning Man - IEEE Spectrum | Democritus | Scoop.it
At a desert art festival, power engineers take on challenges they can’t tackle at work, while educating others...
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Marine microorganisms hold the key to life on earth : European Science Foundation

Marine microorganisms hold the key to life on earth : European Science Foundation | Democritus | Scoop.it
The European Science Foundation promotes high quality science at a European level.
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Space formula of Konstantin Tsiolkovsky

Space formula of Konstantin Tsiolkovsky | Democritus | Scoop.it
Moscow (Voice of Russia) Sep 18, 2012 -
155 years ago, on September 17, Konstantin Tsiolkovsky, one of the founding fathers of rocketry and astronautics, was born in the Russian province.

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The True Size Of Africa

The True Size Of Africa | Democritus | Scoop.it

This is another old classic image that I might have shared earlier but it merits repeating. As Salvatore Natoli (a leader in geography education) once said, "In our society we unconsciously equate size with importance and even power." This is one reason why many people have underestimated the true size of Africa relative to places that they view as more important or more powerful.


Tags: mapping, Africa, perspective, images. 


Via Seth Dixon
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Afrikasources's curator insight, January 15, 2014 10:10 AM

Just a reminder

Edelin Espino's curator insight, December 5, 2014 11:01 AM

It is incredible big, but unfortunately most of the north area is cover by the big Sahara and most of the are is typically unfertilized. 

Jason Schneider's curator insight, March 9, 2015 4:29 PM

As we can see, there's a little overlapping here and some empty spots but it's pretty accurate. The United States and China are in the top 5 largest countries of the world list and they still fit in the 2nd largest continent of the world, Africa. I'd like to see the size comparison between Africa and Russia. I did some research on that and it turns out that Russia is a little over half the size of Africa, maybe the size of the combination of the United States and China.

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Mystery Spheres on Mars Baffle Scientists : Discovery News

Mystery Spheres on Mars Baffle Scientists : Discovery News | Democritus | Scoop.it
The mysterious geological formations seem to be crunchy on the outside and softer in the middle.
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Voyager Chasing Solar System's Edge - Science News

Voyager Chasing Solar System's Edge - Science News | Democritus | Scoop.it
On 35th anniversary of spacecraft’s launch, scientists ponder when it will move beyond the sun’s reach...
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Oscar Pistorius is helping to redefine 'disability'

Oscar Pistorius is helping to redefine 'disability' | Democritus | Scoop.it
James Dacey explores the controversial scientific debate about whether Oscar Pistorius's running blades give him an unfair advantage...
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