Q&A - The Search for the Theory of Everything with John Gribbin

                         



Q&A - The Search for the Theory of Everything with John Gribbin

δημοσιεύτηκε στις 30 Μαρ 2016

John Gribbin answers questions from the audience following his talk. Watch the full talk here: https://www.youtube.com/watch?v=8V669...
If
we've only just discovered dark energy and dark matter, is there room
for another force? What does being able to measure the age of Universe
accurately tell us about the nature of time?

John Gribbin is a
Visiting Fellow in Astronomy at the University of Sussex, where he has
worked on the problem of determining the age of the Universe.

He
now spends his time writing and, after working for the journal Nature
and New Scientist, he has produced many books including 'In Search of
Schrödinger's Cat', 'In Search of the Double Helix' and 'In Search of
the Big Bang'.

Subscribe for regular science videos: http://bit.ly/RiSubscRibe

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ANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 2/4/2016

The Search for the Theory of Everything - with John Gribbin

    



The Search for the Theory of Everything - with John Gribbin

Δημοσιεύτηκε στις 30 Μαρ 2016

Astrophysicist
John Gribbin presents his own version of the ‘Holy Grail’ of physics,
bringing quantum theory and the general theory of relativity together in
one mathematical package offering the answer to life and the universe.
Subscribe for regular science videos: http://bit.ly/RiSubscRibe
Watch the Q&A here: https://www.youtube.com/watch?v=cL6fW...

The
20th century gave us two great theories of physics. The general theory
of relativity describes the behaviour of very large things, quantum
theory the behaviour of very small things. But how can these theories be
combined into a ‘theory of everything'?

John Gribbin is a
Visiting Fellow in Astronomy at the University of Sussex, where he has
worked on the problem of determining the age of the Universe.

He
now spends his time writing and, after working for the journal Nature
and New Scientist, he has produced many books including 'In Search of
Schrödinger's Cat', 'In Search of the Double Helix' and 'In Search of
the Big Bang'.

Subscribe for regular science videos: http://bit.ly/RiSubscRibe

Watch more science videos on the Ri Channel http://richannel.org
The Ri is on Twitter: http://twitter.com/ri_science
and Facebook: http://www.facebook.com/royalinstitution
and Tumblr: http://ri-science.tumblr.com/
Subscribe for the latest science videos: http://richannel.org/newsletter

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ΑΝΑΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 2/4/2016

Cosmology (Public Lecture), George Ellis | Lecture 1 of 1

                  



Cosmology (Public Lecture), George Ellis | Lecture 1 of 1 

Ανέβηκε στις 30 Σεπ 2011

A
public lecture on Cosmology given by George Ellis at the African Summer
Theory Institute in 2004. Lectures can also be found here: http://www.asti.ac.za/lectures.php

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ANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 2/4/2016

Symmetry (Public Lecture), Anthony Zee | Lecture 1 of 1

                     





Symmetry (Public Lecture), Anthony Zee | Lecture 1 of 1

Ανέβηκε στις 30 Σεπ 2011

A
public lecture on Symmetry given by Anthony Zee at the African Summer
Theory Institute in 2004. Lectures can also be found here: http://www.asti.ac.za/lectures.php

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ANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 2/4/2016

Mark Okrand Interviewd by Adrian Brown (SETIcon 2012)

                       



Mark Okrand Interviewd by Adrian Brown (SETIcon 2012) 

Δημοσιεύτηκε στις 1 Απρ 2016

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ANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 2/4/2016

From Perchlorate in breast milk to Perchlorate on Mars - Sandy DasGupta ...

               



From Perchlorate in breast milk to Perchlorate on Mars - Sandy DasGupta ..

Δημοσιεύτηκε στις 1 Απρ 2016

The
Phoenix mission to Mars clearly demonstrated the usefulness of wet
chemistry analyses to understand the composition of planetary surfaces,
and it tentatively revealed the presence of ~0.5% of perchlorate by
weight of Martian soil. This talk will explore why open tubular ion
chromatography (OTIC) is the necessary next step in wet chemistry
analyses for planetary exploration, both in terms of technical
feasibility, and science versatility. We will discuss the performance of
OTIC in comparison to other approaches such as capillary
electrophoresis. Jorgenson, the father of capillary zone
electrophoresis, reportedly joked about his invention: Capillary
electrophoresis is a wonderful technique but it has only three small
problems: Injection, Separation and Detection. In OTIC, a sample is
injected into a conduit and a response is recorded with or without
eluent suppression. In general, open tubular liquid or ion
chromatography is time efficient only in very small capillaries where
the Jorgenson triad of problems intensify. In recent years we have
learned how to inject pL-multi-nL volumes of samples in the same setup,
generate active chromatographic surfaces within capillaries as small as 5
mm in bore and learned to make miniature detectors to detect analytes
sensitively in such small tubes. The prospects of working meaningfully
on this planet with practical inexpensive equipment (less than $1000 for
a high performance chromatograph!) will also be discussed.

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  ANAΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 2/4/2016
  
  
  

SFN #158: Black Hole Telescope Goes Missing; Did Jupiter Have an Impact?...

                    





SFN #158: Black Hole Telescope Goes Missing; Did Jupiter Have an Impact?... 

Δημοσιεύτηκε στις 1 Απρ 2016

Starting April 22, SFN will be uploaded ONLY to the SFN Channel, subscribe here:
https://www.youtube.com/subscription_...
or
https://www.youtube.com/user/TheSpace...

Here are the links for this week's stories:
Hitomi Tumbling out of control:
http://phys.org/news/2016-03-japan-bl...

http://phenomena.nationalgeographic.c...
http://www.space.com/32392-japanese-h...
http://spacenews.com/japanese-astrono...

http://www.extremetech.com/extreme/22...
http://gizmodo.com/japan-s-lost-black...

https://www.nasa.gov/feature/goddard/...

Jupiter Impact?
https://www.youtube.com/watch?v=4LiL7...
https://www.youtube.com/watch?v=HakDI...

http://www.skyandtelescope.com/astron...

ALMA Captures planet-forming disk around sun-like star
http://www.eso.org/public/news/eso1611/

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ΑΝΑΡΤΗΣΗ ΑΠΟ ΤΟ YOUTUBE 2/4/2016