Future In Space Hangout: The Multitude of Planets

   



Future In Space Hangout: The Multitude of Planets

Ζωντανή μετάδοση στις 17 Ιουλ 2015

Recent
space telescope missions such as Kepler and Spitzer have given us
unprecedented data that have shown that there are many, many planets
orbiting other stars.  Current estimates show that there are enough
planets in our galaxy that for every star in the Milky Way, there are on
average 1.6 planets in orbit around them.  Many of these planets are
like the Earth and have the potential to harbor life.

In our
first FutureInSpace Hangout, we will explore this relatively brand new
study in space astronomy with expert members of the American
Astronomical Society, Dr. Natalie Batalha and Dr Sara Seager.  We will
discuss the current state of exoplanet research and look at what
exciting results may be in store for us as we deploy the next generation
of space telescope like the James Webb Space Telescope (JWST), the
Wide-Field Infrared Space Telescope (WFIRST), the Transiting Exoplanet
Survey Satellite (TESS) and the future High Definition Space Telescope
(HDST).

Please join +Tony Darnell Dr. +Alberto Conti and Dr.
Harley Thronson and bring your questions and comments for our experts
and we look forward to "Hanging Out" with you.

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  ANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 30/7/2015
  
  
  

Shock and Awe: The Story of Electricity -- Jim Al-Khalili BBC Horizon

    

Shock and Awe: The Story of Electricity -- Jim Al-Khalili  BBC Horizon

Δημοσιεύτηκε στις 26 Μαΐ 2015

Part 1 - Spark 0:00
Part 2 - The Age of Invention 58:30
Part 3 - Revelations and Revolutions 1:56:50

---------

In
this three-part BBC Horizon documentary physicist and science
communicator Jim Al-Khalili takes the viewer on a journey exploring the
most important historical developments in electricity and magnetism.
This documentary discusses how the physics (and the people behind the
physics) changed the world forever.

---------

BBC Horizon 2011

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  ANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 30/7/2015
  
  
  

A new model for the origin of life - Bruce Damer and Dave Deamer (SETITa...

   

A new model for the origin of life - Bruce Damer and Dave Deamer (SETITa...

Δημοσιεύτηκε στις 20 Ιαν 2015

Full Title: A new model for the origin of life: Coupled phases and combinatorial selection in fluctuating hydrothermal pools

Hydrothermal
fields on the prebiotic Earth are candidate environments for
biogenesis. We propose a model in which molecular systems driven by
cycles of hydration and dehydration in such sites undergo chemical
evolution and selection in a dehydrated surface phase followed by
encapsulation and combinatorial selection in a hydrated phase. This
model is partly supported by recent science, and lies partly in the
realm of speculation including a hypothesized pathway for the parallel
evolution of the functional machinery of life. Complex models like this
present challenges for science in the 21st century and we will describe a
new technology to enable the simulation of such models.

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ANAΡΤΗΣΗ ΑΠΌ ΤΟ YOUTUBE 30/7/2015

Elliptic curves

     

Elliptic curves

Δημοσιεύτηκε στις 18 Ιουλ 2014

Explore
the history of counting points on elliptic curves, from ancient Greece
to present day. Inaugural lecture of Professor Toby Gee.

For more information please visit http://bit.ly/1r3Lu8c

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ANAΡΤΗΣΗ ΑΠΟ ΤΟ  YOUTUBE 30/7/2015

The Unreasonable Effectiveness of Quantum Physics in Modern Mathematics ...

    

The Unreasonable Effectiveness of Quantum Physics in Modern Mathematics ...

Δημοσιεύτηκε στις 29 Μαρ 2015

Robbert Dijkgraaf, Perimeter Institute for Theoretical Physics
March 5th, 2014

----
Mathematics
has proven to be "unreasonably effective" in understanding nature. The
fundamental laws of physics can be captured in beautiful formulae. In
this lecture I want to argue for the reverse effect: Nature is an
important source of inspiration for mathematics, even of the purest
kind. In recent years ideas from quantum field theory, elementary
particles physics and string theory have completely transformed
mathematics, leading to solutions of deep problems, suggesting new
invariants in geometry and topology, and, perhaps most importantly,
putting modern mathematical ideas in a `natural’ context.
----

visit Perimeter Institute's website to find this and other speakers

http://www.perimeterinstitute.ca/vide...

http://pirsa.org/

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ΑΝΑΡΤΗΣΗ ΑΠΟ ΤΟ  YOUTUBE 30/7/2015

HOW IT WORKS: Fusion Power (720p)

    

HOW IT WORKS: Fusion Power (720p)



Δημοσιεύτηκε στις 8 Απρ 2015

HOW IT WORKS playlist:
https://www.youtube.com/watch?v=4rIHd...

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ΑΝΑΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 26/7/2015

11. Ur/Web

   

11. Ur/Web



Δημοσιεύτηκε στις 14 Ιουλ 2015

MIT 6.858 Computer Systems Security, Fall 2014
View the complete course: http://ocw.mit.edu/6-858F14
Instructor: Nickolai Zeldovich, Adam Chlipala

In this lecture, Professor Chlipala discusses Ur/Web, the programming language he created for modern web applications.

License: Creative Commons BY-NC-SA
More information at http://ocw.mit.edu/terms
More courses at http://ocw.mit.edu

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ANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 26/7/2015

Pentaquark - Sixty Symbols

    

Pentaquark - Sixty Symbols

Δημοσιεύτηκε στις 17 Ιουλ 2015

Dr Tony Padilla on the pentaquark discovery.
More videos from the LHC: http://bit.ly/LHCvideos

Our website at http://www.sixtysymbols.com/
We're on Facebook at http://www.facebook.com/sixtysymbols
And Twitter at http://twitter.com/#!/periodicvideos
This project features scientists from The University of Nottingham
http://bit.ly/NottsPhysics

Sixty Symbols videos by Brady Haran

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  ANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 26/7/2015

New Horizons: Pluto may have 'nitrogen glaciers'

By Jonathan Amos BBC Science Correspondent

 

• 24 July 2015
• From the section Science & Environment

New Horizons has sped past Pluto and is continuing to image the dwarf planet to study its tenuous atmosphere backlit by the Sun

Pluto would appear to have glaciers of nitrogen ice, the latest pictures from the New Horizons probe suggest.

Scientists believe they see evidence of surface material having flowed around mountains and even ponding in craters.
The activity is certainly recent, they say, and may even be current.

Can you lower your cholesterol just by changing your diet?

• 21 July 2015

In today's Magazine

• Why my own father would have let IS kill me
• The climb that left me frozen with fear
• Why can't men be Olympic synchronised swimmers?
• Walk of faith: 500km of sugar, storms and blisters

Statins are used to lower cholesterol but how much can be achieved with changes to diet alone, asks Michael Mosley.

Over the many years that I've been making science documentaries I've covered a huge range of subjects, but there is one that is of particular personal interest. My family tree is riddled with heart disease and I know that, unchecked, my cholesterol scores tend to soar.
I am not alone - 60% of people in Britain have cholesterol levels that are too high and increasingly we are recommended to go on statins. Yet statins have side effects and many people are reluctant to go on a lifetime of pills.

How has IVF developed since the first 'test-tube baby'?

By Adam Eley BBC Victoria Derbyshire programme

• 23 July 2015

In July 1978 Louise Brown was hailed as the world's first "test-tube baby", born through the fertility treatment IVF. But how does her story compare with modern procedures?

"On the day I was born, my mum had to be taken to the operating theatre for her Caesarean section in pitch darkness, with just a torchlight showing the way," Louise Brown explains.
"Only a few staff knew who she was, and my parents didn't want others realising her identity and tipping off the newspapers."
Louise's birth was cloaked in secrecy. Even her father John's first visit to see her in Oldham General Hospital was under the eye of police officers, who lined the corridor outside.
The reason was that his daughter, from Bristol, had become the world's first "test-tube baby", as the press hailed her.

Malaria vaccine: How good is good enough?

By Dr Seth Berkley, Gavi & Dr Mark Dybul, Global Fund

• 24 July 2015

SCRUBBING UP

• Small tube - big problem
• Warning over 'dodgy' allergy tests
• 'Focus on fitness not fatness'
• Could smart phones help provide mental health care?

The first malaria vaccine is set to be given the green light by regulators on Friday, opening the door for the World Health Organization to recommend its use in developing countries.

But in this week's Scrubbing Up, By Dr Seth Berkley, chief executive officer of Gavi (the Vaccine Alliance), and Dr Mark Dybul, executive director of the Global Fund to Fight Aids, Tuberculosis and Malaria, say it won't be a straightforward decision.

Malaria vaccine gets 'green light'

 

• 24 July 2015

A girl in Tanzania receiving the malaria vaccine during the clinical trial

The world's first malaria vaccine has cleared one of the final hurdles prior to being approved for use in Africa.

The European Medicines Agency gave a positive scientific opinion after assessing its safety and effectiveness.
It represents a 'green light' for the Mosquirix jab, developed by GlaxoSmithKline.
The World Health Organization will consider later this year whether to recommend it for children, among whom trials have yielded mixed results.
Malaria kills around 584,000 people a year worldwide, most of them children under five in sub-Saharan Africa.

Deafness could be treated by virus, say scientists

By James Gallagher Health editor, BBC News website

• 9 July 2015
• From the section Health

Scientists say they have taken a significant step towards treating some forms of deafness after restoring hearing in animals.

Defects in a baby's DNA are behind roughly half of cases of hearing loss in early life.
The mouse study, published in Science Translational Medicine, showed a virus could correct the genetic fault and restore some hearing.
Experts said the results could lead to treatments within a decade.
The team in the US and Switzerland focused on the tiny hairs inside the ear, which convert sounds into electrical signals that can be interpreted by the brain.
But mutations in our DNA can leave hairs unable to create the electrical signal - leaving people unable to hear.

Cell transplant 'regenerates' liver

• 21 July 2015
• From the section Health

Transplanting cells into livers has the potential to completely regenerate them, say scientists.

The Medical Research Council team showed severely damaged organs in mice could be restored to near-normal function.
They say the findings, published in Nature Cell Biology, could eventually help people stuck on a waiting list for a transplant.

Parkinson's: Diabetes drug may offer clue to treatment

By Smitha Mundasad Health reporter

• 22 July 2015
• From the section Health

A type of diabetes drug may offer a glimmer of hope in the fight against Parkinson's disease, research in the journal Plos Medicine suggests.

Scientists found people taking glitazone pills were less likely to develop Parkinson's than patients on other diabetes drugs.
But they caution the drugs can have serious side-effects and should not be given to healthy people.
Instead, they suggest the findings should prompt further research.

Cheap drugs cut breast cancer deaths by 18%

By James Gallagher Health and science reporter, BBC News website

• 24 July 2015
• From the section Health

Nearly 12,000 people die from breast cancer each year

Cheap drugs normally used to strengthen bone can cut deaths from breast cancer, research shows.

A charity said it was one of the most important findings in breast cancer treatment for a decade and could save 1,000 lives a year in the UK.
The data from 18,766 women, published in the Lancet, showed the drugs prevented secondary tumours growing in the bone.
The drugs are not currently available for this purpose on the NHS.

Clot-busting stroke drug safe, says expert review

• From the section Health

A panel of independent experts has decided that a clot-busting drug often used to treat strokes is "safe and effective".

The UK medicines watchdog wanted the benefits and risks of alteplase to be analysed after concerns were raised about its safety.

Ακόμα μια παρενέργεια της κλιματικής αλλαγής: λάθος

Ακόμα μια παρενέργεια της κλιματικής αλλαγής: λάθος ραδιοχρονολόγηση

Οι μετρήσεις με τη μέθοδο του άνθρακα-14 επηρεάζονται από τις εκπομπές διοξειδίου του άνθρακα στην ατμόσφαιρα

ΔΗΜΟΣΙΕΥΣΗ:  22/07/2015 15:48

Η καύση ορυκτών καυσίμων πλημμυρίζει την ατμόσφαιρα με άνθρακα-12 (Φωτογραφία: Associated Press )

 

Λονδίνο 

Οι μετρήσεις που δίνει η ραδιοχρονολόγηση με τη μέθοδο του άνθρακα-14 επηρεάζονται από τις εκπομπές διοξειδίου του άνθρακα στην ατμόσφαιρα, προειδοποιεί νέα μελέτη. Με τον σημερινό ρυθμό αύξησης των εκπομπών, ένα ολοκαίνουργιο μπλουζάκι θα φαίνεται σύντομα να έχει την ίδια ηλικία με την κάπα που φορούσε ο Γουλιέλμος ο Κατακτητής πριν από 1.000 χρόνια.

Λανθασμένα τα όσα πιστεύαμε για την αθηροσκλήρωση

Ο ρόλος των λείων μυϊκών κυττάρων στην αθηρωματική πλάκα είναι πολυπλοκότερος από ό,τι πιστευόταν– ίσως τα κύτταρα αυτά δεν είναι τα «καλά» παιδιά που νόμιζαν οι ειδικοί αλλά τα «κακά»

ΔΗΜΟΣΙΕΥΣΗ:  23/07/2015 05:45

Οι επιπλοκές της αθηροσκλήρωσης αποτελούν κύρια αιτία θανάτου παγκοσμίως

 

Οι προσπάθειες των ειδικών να καταπολεμήσουν τις επικίνδυνες αθηρωματικές πλάκες οι οποίες εναποτίθενται στις αρτηρίες και προκαλούν καρδιακά και εγκεφαλικά επεισόδια έχουν «χτιστεί» επάνω σε λανθασμένες πεποιθήσεις σχετικά με τη σύνθεση και τον σχηματισμό των πλακών.

Βράστε το ρύζι στην καφετιέρα!

Αυτό προτείνουν ιρλανδοί ερευνητές προκειμένου να προστατευθείτε από τις τοξικές ουσίες που περιέχει

ΔΗΜΟΣΙΕΥΣΗ:  23/07/2015 10:31

Βράσε ρύζι... στην καφετιέρα

Μπέλφαστ 
Μια εναλλακτική μέθοδο μαγειρέματος του ρυζιού προτείνουν ιρλανδοί ερευνητές με στόχο την προστασία των ανθρώπων από τις τοξικές ουσίες που περιέχει, σύμφωνα με άρθρο που δημοσιεύεται στο επιστημονικό έντυπο PLoS One.

Πειραματικό φάρμακο επιβραδύνει την Αλτσχάιμερ

Σε κλινική δοκιμή η σολανεζουμάμπη περιόρισε κατά περίπου ένα τρίτο τον ρυθμό εξέλιξης της νόσου

ΔΗΜΟΣΙΕΥΣΗ:  23/07/2015 11:40

Ελπίδες προσφέρει το νέο πειραματικό φάρμακο ενάντια στη νόσο Αλτσχάιμερ

 

 
Ενα νέο πειραματικό φάρμακο της αμερικανικής εταιρείας Eli Lilly, η σολανεζουμάμπη (solanezumab), φαίνεται πως για πρώτη φορά επιβραδύνει τις βλάβες στον εγκέφαλο, τις οποίες προκαλεί η νόσος Αλτσχάιμερ

Βρέθηκε η εξαδέλφη της Γης!

Εντοπίστηκε ο πρώτος πλανήτης με χαρακτηριστικά παρόμοια με αυτά του δικού μας

ΔΗΜΟΣΙΕΥΣΗ:  23/07/2015 20:18

Καλλιτεχνική απεικόνιση του πλανήτη Kepler-452b που συγκεντρώνει όλα τα χαρακτηριστικά για να είναι φιλόξενος στη ζωή

 

Ουάσινγκτον 

Η NASA ανακοίνωσε ότι εντοπίστηκε ένας εξωπλανήτης που έχει μέγεθος παρεμφερές με αυτό της Γης, βρίσκεται σε τροχιά γύρω από ένα άστρο παρόμοιο με τον Ηλιο και επιπλέον βρίσκεται στην λεγόμενη κατοικήσιμη ζώνη, όπως δηλαδή και ο πλανήτης μας. Είναι η πώτη φορά που εντοπίζεται ένας πλανήτης μακριά από το ηλιακό μας σύστημα που συγκεντρώνει όλα τα κρίσιμα χαρακτηριστικά (μέγεθος, κατηγορία μητρικού άστρου και απόσταση από αυτό) ώστε να έχει σημαντικές πιθανότητες να διαθέτει συνθήκες ευνοϊκές στην παρουσία της ζωής.

Ο καφές μειώνει τον κίνδυνο εκδήλωσης διαβήτη

Ελληνική μελέτη αποδίδει τον συσχετισμό στις αντιφλεγμονώδεις ιδιότητες του ροφήματος

ΔΗΜΟΣΙΕΥΣΗ:  23/07/2015 12:18

Καφές ο... αντιφλεγμονώδης που προστατεύει από τον διαβήτη

Αθήνα 

Τα άτομα που πίνουν καφέ έχουν τις μισές πιθανότητες να εκδηλώσουν διαβήτη τύπου 2, συγκριτικά με εκείνα που δεν προτιμούν το εν λόγω ρόφημα, σύμφωνα με ελληνική μελέτη που δημοσιεύθηκε στο επιστημονικό έντυπο European Journal of Clinical Nutrition.

Ο δρ Δημοσθένης Παναγιωτάκος και οι συνεργάτες του στο Χαροκόπειο Πανεπιστήμιο της Αθήνας αποδίδουν τον συσχετισμό στις αντιφλεγμονώδεις ιδιότητες του καφέ.

Extreme Environments - Hydrothermal settings for early life on Earth (an...

        

Extreme Environments - Hydrothermal settings for early life on Earth (an...

Δημοσιεύτηκε στις 17 Ιουλ 2015

It
is well known that New Zealand hosts spectacular hot-springs associated
with a live super-volcano. Less well known is that these geothermal
systems are rapidly mineralizing, entombing within silica a biota
adapted to high temperatures, and thus serving as an extreme environment
analog in the continuing search for the earliest signs of life on Earth
and potentially other planets, such as Mars. This hypothesis stems from
the following observations – the deepest roots of today’s “Tree of
Life” constitute heat-loving microbes in hot springs; some Precambrian
settings for early life were silica-rich and hydrothermally influenced;
and siliceous deposits recently found by Martian rover Spirit are
interpreted as hot-spring related.

The problem in trying to peer
back into “deep time” on Earth is that the very old rocks which may
contain the earliest traces of life also tend to be very “beaten up” by
later geological events. It can be difficult to prove both biogenicity
and original environmental setting in altered rocks billions of years
old. Hence, Kathleen Campbell’s research examines siliceous hot-spring
deposits to track the integrity of their fossil preservation through
time. This method allows us to follow microbes as they “turn to stone”
and to examine their history far back into the geological record,
thereby fine-tuning studies on the recognition of early terrestrial
life. The research has led to discovery of giant, Yellowstone-style,
paleo-geothermal systems in the Late Jurassic (150-million-year-old) of
Patagonia, Argentina. It also has confirmed hydrothermal signatures in
fossil microbe-rich, 3.33 billion-year-old shallow marine rocks of South
Africa.

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ANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 25/7/2015

Kepler 452b Hangout with SETI Institute scientists

   

Kepler 452b Hangout with SETI Institute scientists

Ζωντανή μετάδοση στις 23 Ιουλ 2015

Update
on Kepler mission with SETI Institute scientists Douglas Caldwell,
Jeffrey Coughlin, Joseph Twicken. Hosted by Seth Shostak

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ANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 25/7/2015

Kepler 138b, A Mars size planet in a Tug of War - Jason Rowe (SETI Talks)

      

Kepler 138b, A Mars size planet in a Tug of War - Jason Rowe (SETI Talks)

Δημοσιεύτηκε στις 24 Ιουλ 2015

Jason Rowe, Senior Research Scientist at the SETI Institute



Jason
gives an overview of the Kepler 138 system, the Kepler Mission in
general, transit-timing-variations, in particular the gravitational
tug-of-war, and mass-radius relationships.

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ANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 25/7/2015

World's First NUCLEAR SALT REACTOR - Documentary Films

     

World's First NUCLEAR SALT REACTOR - Documentary Films

Δημοσιεύτηκε στις 25 Ιαν 2015

World's First NUCLEAR SALT REACTOR - Documentary Films

A
liquified salt activator (MSR) is a class of nuclear fission activators
where the primary coolant, or also the energy itself, is a liquified
salt mix. MSRs perform at higher temperature levels than water-cooled
reactors for greater thermodynamic savings, while staying at low vapor
tension.

In many designs the nuclear energy is dissolved in the
molten fluoride salt coolant as uranium tetrafluoride (UF4). Solid
energy designs rely on ceramic energy dispersed in a graphite matrix,
regarding the molten salt providing low stress, high temperature level
air conditioning.

The early Aircraft Reactor Experiment (1954)
was primarily motivated by the tiny dimension that the style might
offer, while the Molten-Salt Reactor Experiment (1965-- 1969) was a
prototype for a thorium gas cycle breeder activator nuclear power plant.
Among the Generation IV reactor designs is a molten-salt-cooled,
molten-salt-fuelled reactor; the initial reference design is 1000 MWe.

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ANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 22/7/2015

The Future of Robotics - an Imperial Business Partners event

   



The Future of Robotics - an Imperial Business Partners event

Δημοσιεύτηκε στις 15 Ιουλ 2015

Guest
talk from Dr Yulun Wang, CEO of InTouch Health at The Future of
Robotics - an Imperial Business Partners event held 23 June 2015

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ANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 22/7/2015

Of Particles, Stars, and Eternity | Cédric Villani

     

Of Particles, Stars, and Eternity | Cédric Villani

Δημοσιεύτηκε στις 2 Ιουλ 2015

Cédric Villani
Professor, Massachusetts Institute of Technology
May 8, 2015

Can
one predict the future arrangements of planets over extremely large
time periods? For centuries this issue has triggered dreams of curious
people, and hot debates by specialists including Newton, Lagrange,
Poincare, Kolmogorov, Laskar, and Tremaine. Villani explores the long
time behavior of a plasma, evoking the advances which he made with
Mouhot a few years ago, and continuing with the subject of long time
stability for incompressible fluids. Common themes will appear in all
these various fields, and will be the opportunity for a wide audience to
appreciate both old and new results of mathematical research.

Video also available here: https://video.ias.edu

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ANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 21/7/2015

The Elusive Neutrino And The Nature Of The Cosmos

    

The Elusive Neutrino And The Nature Of The Cosmos

Δημοσιεύτηκε στις 21 Νοε 2014

The
neutrino is among the cagiest of particles, a subatomic wisp so
ephemeral it could pass through light years of lead with more ease than a
hot knife through butter. Despite its extraordinary abundance in the
universe—billions pass through your body every second—this ghostly
particle is notoriously difficult to trap, inspiring some of the most
sophisticated detectors in science just to study it. A closer look could
change everything. The elusive neutrino holds clues to some of the most
profound questions in particle physics: What happened in the briefest
moments after the Big Bang? Why does the universe contain more matter
than antimatter? Join leading researchers as they chase neutrinos and
other elusive particles in search of nature’s fundamental order.

Original program Date: June 1, 2012

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ANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 21/7/2015

Conformal gravity: New light on dark matter and dark energy - Robert Nes...

    



Conformal gravity: New light on dark matter and dark energy - Robert Nes...

Ζωντανή μετάδοση στις 18 Ιουν 2013

SETI Talks archive: http://seti.org/talks

Dr.
Nesbet will describe (in layman's terms) implications of a theory that
differs from standard particle physics and cosmology only by imposing a
universal symmetry principle. This theory has been found to explain dark
energy and dark galactic halos without invoking dark matter.
Subgalactic phenomenology (relevant to our solar system) is retained.

The
model postulates that strict conformal symmetry (local Weyl scaling
covariance), already satisfied by standard fermion and gauge boson
theory, can be extended to all elementary massless fields. This modifies
Einstein-Hilbert general relativity and the Higgs scalar field model.
No new physical fields are introduced.

Dr. Nesbet will show that
conformal gravity and a conformal Higgs model fit empirical data on
galactic rotational velocities, galactic halos, and Hubble expansion
including dark energy. By implication, dark matter is not needed for an
isolated galaxy. This model appears to be a promising tool for
understanding both cosmology and elementary particle physics.

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  ANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 21/7/2015
  
  
  

SpaceTimeMind Podcast 021 - Three Men and a Baby Universe (with Sean Car...

     

SpaceTimeMind Podcast 021 - Three Men and a Baby Universe (with Sean Car...

Δημοσιεύτηκε στις 16 Ιαν 2015

Physicist
Sean Carroll joins philosophers Richard Brown and Pete Mandik on the
SpaceTimeMind podcast to discuss, for example: anti-intellectual
academics; intelligent design and fine tuning; entropy, decoherence, and
the arrow of time, baby Benjamin-Button universes; Boltzmann brains;
lambda cold dark matter; many worlds; disappearing worlds; interacting
worlds. And much much more! (Music by Quiet Karate Reflex.)

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ANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 21/7/2015

Glimpsing the Birth of our Solar System

    

Δημοσιεύτηκε στις 10 Ιουλ 2015

Where
do you look to glimpse the birth of a solar system like ours? Our sun
is thought to have formed along with a range of stellar siblings. This
star cluster likely moved out on its own, bound by gravity, in what
astronomers call a "Moving Group."

This video explores two nearby
moving groups. M67, also known as the King Cobra Cluster, was once
pegged as the birth place of our solar system. The evidence now says
it's not, but astronomers have now detected planets there. The other is
the Beta Pictoris group, with the most famous of all solar systems in
formation, Beta Pictoris. Find out how a solar system is taking shape
within the fold of this hot star.

Music by Epidemic Sound (http://www.epidemicsound.com)

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  • 9/6/15
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  • Thomas Lucas
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  • Thomas Lucas
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ANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 21/7/2015

Quantum Computer in a Nutshell (Documentary)

    

Quantum Computer in a Nutshell (Documentary)

Δημοσιεύτηκε στις 11 Οκτ 2014

The
reservoir of possibilities offered by the fundamental laws of Nature,
is the key point in the development of science and technology. Quantum
computing is the next step on the road to broaden our perspective from
which we currently look at the Universe. The movie shows the history of
progress in this fascinating field of science, introduces the most
promising models and algorithms, explains the advantages of quantum
computers over classical solutions, and finally presents wonderful
people thanks to which the quality of our lives is constantly being
improved.

Even if you don't want to understand the video, please
watch till the end at least to realise how big is the human thirst for
knowledge.

PLEASE TAKE NOTICE that all of the necessary
information about the authors who were kind enough to share their work,
are displayed in the end credits.

Captions already available.

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ANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 8/7/2015

The Fusion Driven Rocket - Fall 2012 NAIC

   

The Fusion Driven Rocket - Fall 2012 NAIC

Δημοσιεύτηκε στις 17 Νοε 2012

Nuclear Propulsion through Direct Conversion of Fusion Energy.

A presentation by Anthony Pancotti, MSNW, on an innovative fusion propulsion spacecraft design.

See more from the NIAC Fall 2012 conference at: http://www.livestream.com/niac2012

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ANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 8/7/2015

Nuclear Fusion: Engine of the Stars and Energy of the Future

    



Nuclear Fusion: Engine of the Stars and Energy of the Future

Δημοσιεύτηκε στις 21 Σεπ 2013

Lecture: Nuclear Fusion: Engine of the Stars and Energy of the Future
Clayton Myers - Princeton Plasma Physics Lab

This Lecture is part of the Space Challenges Online Library, which can be found here: http://www.spaceedu.net/space-challen...
http://www.youtube.com/SpaceChallenges/

If you enjoy the lectures, please like and subscribe!

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ANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 8/7/2015

Thermonuclear fusion versus Murphy's Law

     



Thermonuclear fusion versus Murphy's Law

Δημοσιεύτηκε στις 27 Μαρ 2014

Inaugural
Lecture - Jeremy Chittenden, Professor of Plasma Physics and
Co-director of the Centre for Inertial Fusion Studies in the Department
of Physics, Imperial College London

Nuclear fusion powers the
stars and could be an almost inexhaustible source of clean, renewable
energy on Earth. Are we getting close at last?

For more information please visit

http://www3.imperial.ac.uk/newsandeve...

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ΑΝΑΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 8/7/2015

Data Science Insights – Building Brains: Learning from data

    

Data Science Insights – Building Brains: Learning from data

Δημοσιεύτηκε στις 26 Ιουν 2015

In
this final Data Science Insights event hosted by Imperial College's
Data Science Institute in partnership with Thomson Reuters, Professor
Steve Furber CBE from the University of Manchester, talked about how his
new hardware architecture, SpiNNaker, is pioneering neural network
research and then shared insights into how progress in his field will
develop computer-based intelligence. Axel Threlfall, editor-at-large at
Reuters, chaired this event. This event was held at the Royal
Institution of Great Britain on June 17 2015.

To find out more about Data Science Insights, visit www.imperial.ac.uk/data-science/events/d­ata-science-insights

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ANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 8/7/2015

Τα βότσαλα που φιλοδοξούν να γίνουν πλανήτες

Δίκτυο ραδιοτηλεσκοπίων στην Αγγλία ανίχνευσε δακτύλιο από μικρές πέτρες να περιφέρεται γύρω από νεογέννητο άστρο

ΔΗΜΟΣΙΕΥΣΗ:  06/07/2015 18:17

Καλλιτεχνική απεικόνιση του δίσκου αερίων και σκόνης γύρω από το νεογέννητο άστρο. Στην ένθετη, τα βότσαλα που θα μετεξελιχθούν σε πλανήτες (Προσαρμογή από L. Calçada / ESO)

 

Λονδίνο 

Δίκτυο ραδιοτηλεσκοπίων που λειτουργούν διάσπαρτα σε ολόκληρη την έκταση της Αγγλίας ανίχνευσε για πρώτη φορά έναν δακτύλιο από μικρές πέτρες να περιφέρεται γύρω από ένα νεογέννητο άστρο -είναι τα βότσαλα από τα οποία θα σχηματιστούν μια μέρα νέοι πλανήτες, όπως συνέβη στο Ηλιακό Σύστημα πριν από 4,6 δισεκατομμύρια χρόνια.

Σε κίνδυνο το New Horizons

Συναγερμός στη NASA λίγο πριν από την ιστορική άφιξη στον Πλούτωνα

ΔΗΜΟΣΙΕΥΣΗ:  05/07/2015 20:13

Το New Horions είναι το ταχύτερο σκάφος που εκτοξεύτηκε ποτέ (Καλλιτεχνική απεικόνιση: Johns Hopkins University / Southwest Research Institute)

Λόρελ, Μέριλαντ 

Μόλις λίγες μέρες πριν από το πρώτο, ιστορικό πέρασμα από τον Πλούτωνα στις 14 Ιουλίου, η αποστολή New Horizons παρουσίασε άγνωστη δυσλειτουργία, την οποία προσπαθεί να αντιμετωπίσει τώρα η NASA. Θα πρέπει να βιαστεί, αφού το σκάφος θα έχει περιθώριο μόλις 24 ωρών να εξερευνήσει τον πλανήτη-νάνο πριν τον προσπεράσει για πάντα.

Νέο υποσχόμενο εμβόλιο για τον HIV

Προστάτευσε τους μισούς πιθήκους που το έλαβαν - δοκιμάζεται ήδη σε ανθρώπους

ΔΗΜΟΣΙΕΥΣΗ:  06/07/2015 19:01

Το νέο υποσχόμενο εμβόλιο ενάντια στον HIV δρα σε δύο φάσεις

Ουάσινγκτον 

Ενα πειραματικό εμβόλιο προστάτευσε πλήρως από τον ιό HIV του AIDS μισούς από τους πιθήκους που το έλαβαν, σύμφωνα με νέα μελέτη.

The drugs that protect people who have unprotected sex

 

• 3 July 2015
• From the section Magazine

In today's Magazine

• Life in a town called Mongo
• The special water flown in for Princess Charlotte
• Putting the Greek back into Stoicism
• How I was de-radicalised

HIV infection rates are on the rise, particularly among gay men. But could a new type of drug treatment - PrEP - be given to people so they avoid catching the disease, asks Mobeen Azhar.

For decades sexual health workers have concentrated on the message of always using a condom as the main tactic against the spread of HIV and other sexually transmitted infections.
But certain risky behaviours are on the rise. Illegal drugs like MDMA and speed have long been used on the gay club scene. But now "chemsex" is a growing problem - parties in private homes centred on communal drug taking and sex.