Space Lectures

Neil Gehrels, chief, Astroparticle Physics Laboratory, NASA/Goddard Space Flight Center, is principal investigator for the SWIFT gamma-ray burst MIDEX mission. The SWIFT Explorer is an astronomical satellite that is observing gamma-ray bursts, the birth cries of black holes. Come hear about new results and about the amazing properties of black holes.

Dr. Cameron Smith (Portland State University) delivers the third lecture of the 2014/15 Perimeter Institute Public Lecture Series, in Waterloo, Ontario, Canada. Held at Perimeter Institute and webcast live worldwide on Dec 3., 2014, Smith's lecture explores the biological and cultural challenges associated with multigenerational interstellar space travel.

Perimeter Institute Public Lectures are held in the first week of each month. More information on Perimeter Public Lectures:

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Robbert Dijkgraaf's focus is on string theory, quantum gravity, and the interface between mathematics and particle physics, bringing them together in an accessible way, looking at sciences, the arts and other matters.

The transcript and downloadable versions of the lecture are available from the Gresham College website:


Gresham College has been giving free public lectures since 1597. This tradition continues today with all of our five or so public lectures a week being made available for free download from our website.

A lecture by Brian Cox on how the universe was created.
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Apollo 13 Astronaut James Lovell talks about his Space Experiences during this Question and Answer session hosted by Physicist Brian Cox at the Space Lectures event in Pontefract.

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Captain Lovell was selected as an Astronaut by NASA in September 1962. He has since served as backup pilot for the Gemini 4 flight and backup Commander for the Gemini 9 flight, as well as backup Commander to Neil Armstrong for the Apollo 11 lunar landing mission.

On December 4, 1965, he and Frank Borman were launched into space on the history-making Gemini 7 mission. The flight lasted 330 hours and 35 minutes and included the first rendezvous of two manned maneuverable spacecraft.

The Gemini 12 mission, commanded by Lovell with Pilot Edwin Aldrin, began on November 11, 1966. This 4-day, 59-revolution flight brought the Gemini program to a successful close. Lovell served as Command Module Pilot and Navigator on the epic six-day journey of Apollo 8 - man's maiden voyage to the moon - December 21-27, 1968. Apollo 8 was the first manned spacecraft to be lifted into near-earth orbit by a 7-1/2 million pound thrust Saturn V launch vehicle; and Lovell and fellow crewmen, Frank Borman and William A. Anders, became the first humans to leave the Earth's gravitational influence.

He completed his fourth mission as Spacecraft Commander of the Apollo 13 flight, April 11-17, 1970, and became the first man to journey twice to the moon. Apollo 13 was programmed for ten days. However, the original flight plan was modified en route to the moon due to a failure of the Service Module cryogenic oxygen system. Lovell and fellow crewmen, John L. Swigert and Fred W. Haise, working closely with Houston ground controllers, converted their lunar module Aquarius into an effective lifeboat. Their emergency activation and operation of lunar module systems conserved both electrical power and water in sufficient supply to assure their safety and survival while in space and for the return to earth.

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Get ready to re-think your ideas of reality. Join UCSD physicist Kim Griest as he takes you on a fascinating excursion, addressing some of the massive efforts and tantalizing bits of evidence which suggest that what goes on in empty space determines the properties of the three-dimensional existence we know and love, and discusses how that reality may be but the wiggling of strings from other dimensions.
Series: Atoms to X-Rays [5/2001] [Science] [Show ID: 5551]

Astrophysicist Neil deGrasse Tyson kicked off the House Science & National Labs Caucus with a lecture at the Library of Congress.

Speaker Biography: Neil deGrasse Tyson is an American astrophysicist and science communicator. He is currently the Frederick P. Rose Director of the Hayden Planetarium at the Rose Center for Earth and Space and a research associate in the department of astrophysics at the American Museum of Natural History. He has appeared on or hosted several television programs promoting science and space exploration. 21 March 2013

Lecture with Ole Christensen. Kapitler: 00:00 - Repetition; 03:45 - R^n Is Banach; 07:00 - Inner Product; 14:00 - Example: C^n; 22:45 - What About ←V,Aw+Bu→; 25:30 - R^2; 28:15 - Cauchy Schwarz Inequality; 30:15 - Inner Product Induces A Norm; 41:30 - Inner Product On Real Spaces; 43:45 - Important Properties Of An Inner Product;

Exploring Space Lectures
Presenter: Robert Pappalardo, Jet Propulsion Laboratory

Jupiter's moon Europa may have an internal ocean of liquid water, plus the chemistry and energy life needs to exist. Robert Pappalardo, Europa Mission project scientist at the Jet Propulsion Laboratory, will discuss NASA’s plans to send a robotic mission to evaluate Europa’s potential for life and address one of humanity’s most fundamental questions: Are we alone in the universe?

The Exploring Space lectures are made possible by the generous support of Aerojet Rocketdyne and United Launch Alliance.

In this Quantum physics documentary, we are going to present you the lecture of professor and Dr. Brian Cox about Particle Physics at CERN (European Organization for Nuclear Research).

By watching this documentary, you can learn about Particle Physics, Nuclear Physics, Brian Cox Particle Physics Theory, Nuclear and Particle Physics, Particle Physics theory by Brian Cox physicist, etc.

Watch Introduction To Particle Physics (Brian Cox Lecture At CERN) here.

If you would like to watch more education videos and documentary about space time, theory of relativity, parallel universe, quantum theory, quantum mechanics, etc.

If you would like to talk about quantum physics or quantum theory with like-minded people, join our Facebook page today:

Watch Albert Einstein - Biography Of Albert Einstein (Physics Documentary):

Watch Quantum Theory - Subatomic World Explanation By Professor Terry Rudolph:

Watch Quantum Physics Secrets - Albert Einstein Quantum Theory (Documentary):

Watch Secrets Of Quantum Physics - Quantum Biology Theory (Documentary):

Watch Quantum World - The Invisible Reality And Quantum Theory (Documentary):

Watch The Theory Of Everything - Quantum Physics And Consciousness (Documentary):

Watch Time Travel Theory - Why Time Is A One Way Street (Leonard Susskind Documentary):

Watch Virtual Reality - Our Universe As A Hologram (#Mind Blowing Documentary):

Watch String Theory For Dummies - String Theory And The Universe (Edward Witten Documentary):

Watch Brian Greene String Theory - String Theory And Multiverse Explained (Documentary):

Watch Multiverse Theory - Is Our Universe Part Of A Multiverse (Alan H. Guth Documentary):

Watch Quantum Reality - Quantum Physics And Reality (#Mind Blowing Documentary):

Watch M Theory - The M Theory For Dummies (#Mind Blowing Documentary):

Watch Quantum Entanglement - Atomic Physics & Reality (Albert Einstein Documentary):

Watch The Theory of Everything (Neil deGrasse Tyson Documentary):

Watch The World In 2030 By Michio Kaku (#Mind Blowing Documentary):

Watch Higgs Boson - Demystifying The God Particle (Leonard Susskind Documentary):

Watch A Universe From Nothing (Richard Dawkins & Lawrence Krauss Documentary):

Watch Dark Energy - How The Universe Was Formed (Special Documentary):

Watch What Is The Big Bang Explosion (Lawrence Krauss And Michio Kaku Documentary):

Watch Origin Of Universe - What Was The Big Bang (Stephen Hawking Documentary):

Watch What Is String Theory - What Is M-Theory (Full Documentary):

Watch Time Travel Theories - The Grandfather Paradox By Seth Lloyd:

Watch Does Culture Affect The Way We View The Universe? (Documentary):

Introductory lecture of Professor Lynn Rothschild's Astrobiology and Space Exploration course.

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What does the future hold for human space exploration? Dr Ellen Stofan (NASA Chief Scientist) and Dr David Miler (NASA Chief Technologist) discuss the challenges and opportunities for space travel and the role of science and research over the coming years. Chaired by Dr Lucie Green, UCL Mullard Space Science Laboratory.

#NASAlectureUCL

Recorded 12 November, 2014

Speakers:

Dr. Ellen Stofan was appointed NASA chief scientist on August 25, 2013. She was also vice president of Proxemy Research in Laytonsville, Md., and honorary professor in the department of Earth sciences at UCL. Stofan is an associate member of the Cassini Mission to Saturn Radar Team and a co-investigator on the Mars Express Mission's MARSIS sounder.

Dr. David W. Miller was appointed NASA chief technologist on March 17, 2014. He is the agency’s principal advisor and advocate on technology policy and programs. Dr Miller is also the Jerome C. Hunsaker Professor in the Department of Aeronautics and Astronautics and was the Director of the Space Systems Laboratory at the Massachusetts Institute of Technology. Lucie GreenLucie Green is a Royal Society University Research Fellow and a space scientist based at the Mullard Space Science Laboratory, UCL's Department of Space and Climate Physics.

Lucie Green is a Royal Society University Research Fellow and a space scientist based at the Mullard Space Science Laboratory, UCL's Department of Space and Climate Physics. She studies activity in the atmosphere of the Sun; in particular, immense magnetic fields in the Sun's atmosphere which sporadically erupt to form a coronal mass ejection. She is interested in how the magnetic configuration of the eruptions relates to geomagnetic activity and what this means for those living in the UK. She sits on the board of the European Solar Physics Division (ESPD) of the European Physical Society and the advisory board of the Science Museum. She has a broad interest in communicating the latest space science and astronomy research and recently joined the BBC's Sky at Night team. She has contributed to many programmes on BBC 1, BBC News 24, ITV and BBC World, including GMTV, the Xchange, the One Show and Material World, and co-presented the Stardate series on the BBC with Adam Hart-Davis and the Transit of Venus Horizon special.

Richard Dawkins asks Neil deGrasse about what are his thoughts on the probability of life existing elsewhere in the universe. Neil is very positive about having life as the basic ingredients for having life are in abundance in the universe, as we are mostly made up of carbon.

Are we Alone? - Finding Life Beyond Earth [Full Documentary] -

Brief Background -

Ever since humans acknowledged the enormity of the universe, we have intuited that life must exist somewhere, either in our galaxy or some galaxy far, far away. If the­ universe contains billions of galaxies, and if each galaxy contains billions of stars, and if a fraction of those stars have Earth-like planets, then hundreds -- maybe even thousands -- of alien civilizations must exist across the cosmos. Right?

For a while, science contented itself with the logic alone. Then, in 1995, astronomers located the first planets outside our solar system. Since then, they've detected nearly 300 of these extra-solar planets. Although most are large, hot planets similar to Jupiter (which is why they're easier to find), smaller, Earth-like planets are beginning to reveal themselves. In June 2008, European astronomers found three planets, all a little larger than Earth, orbiting a star 42 light-years away.

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The Hubble Space Telescope was launched in 1990 and was designed to be serviced by the Space Shuttle. Michael J. Massimino, former NASA astronaut and professor of Professional Practice at Columbia University, discusses the final Hubble Space Telescope Servicing Mission, which took place in May, 2009 from Space Shuttle Atlantis.

The Exploring Space lectures are made possible by the generous support of Aerojet Rocketdyne and United Launch Alliance.

In 1977 Carl Sagan gave the CHRISTMAS LECTURES on space travel. In his final lecture, he spoke about the human race venturing out into space; his words are as relevant now as they were then.
Day 14 of our advent calendar, A Place Called Space.

Watch his lectures in full on the Ri Channel:

In 1977 we had begun to tiptoe into space, and felt on the edge of the Universe, about to dive in. Almost 40 years later, we’ve made great progress and large strides further into space, but in some ways have barely got our feet wet. The words Carl Sagan concluded his Lectures on ‘The planets’ with are as meaningful now as there were then.

As we look to send people to Mars and then beyond, are we finally realising Sagan’s vision?

This clip from the 1977 CHRISTMAS LECTURES was animated by the Ri animator-in-residence Andrew Khosravani.

‘A Place Called Space’ is the 2015 Royal Institution advent calendar. Every day in the run up to Christmas we'll be releasing an original piece of content exploring the human experience and cultural significance of space travel. With hand-drawn animations, experiments in zero gravity, interviews with astronauts and creative data visualisations, the calendar will fire you into space every morning.

'A Place Called Space' channels the voices of seasoned astronauts and expert scientists through the eyes of a team of talented animators, film-makers and artists, bringing you a thought-provoking gem to kick-start each day.
Check it out at

With special thanks to our lead supporter, Wellcome Trust

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(Sir Lenny shows up at the 43:00 minute mark.)
Additional lectures by Leonard Susskind:

Inside Black Holes:
ER=EPR:
Fractal Flows and the Arrow of Time:
Butterflies, Complexity, and Signals to Bob:
Aspects of Eternal Inflation:

Find more lectures by Stephen Hawking, Edward Witten, Jim Gates, John Preskill, Joe Polchinski, Donald Marolf, and many more on my channel
----------------------------------------------
Leonard Susskind
Stanford & KITP
Apr 04, 2012

'Working Group on Issues in de Sitter Space' lecture given by Lenny Susskind at the KITP Program: Bits, Branes, Black Holes (Mar 19 - May 25, 2012)

Coordinators: Vijay Balasubramanian, Alex Maloney, Don Marolf, Joan Simon
Scientific Advisors: Joseph Polchinski, Theodore Jacobson

Video can also be found here:

Renate Loll from Utrecht University's Institute for Theoretical Physics delivers a lecture on Searching for the Quantum Origins of Space and Time. The lecture was recorded at the Perimeter Institute in Waterloo, Ontario, on May 5, 2010.

Brian Boyd, a Meteorologist with the National Weather Service in Morrison Tenn., recently spoke at the Kingsport Public Library about how the NWS uses remote sensing to predict the weather. Here is Part 1 of the video of the lecture.

The Future of Fundamental Physics
Nima Arkani-Hamed
The Messenger Lectures, Cornell University

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This series is part of Cornell University's Messenger Lectures recorded in October, 2010. The Messenger Lectures are an annual lecture series renowned among physicists and academia in general. Thank you to Cornell University for continuing this proud tradition.

visit Cornell University's website to find this and other speakers





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Quantum Mechanics and Space-time 0:00:00
Standard Models of Particle Physics 1:19:58
Space-time is Doomed 2:47:04
Why a Macroscopic Universe? 4:06:04
What Might We Know by 2020? 5:32:36

Note: The audio during Standard Models of Particle Physics is of lesser quality than the other lectures due to the source material. So it goes.

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On Monday 28 June, University of Manchester Physicist Professor Brian Cox delivered the first lecture aimed at GCSE/Key stage 4 science pupils. The lecture was also broadcast live via the University website . Professor Cox discussed the Big Bang, the origins of the universe and the importance of science to our modern civilisation.

Part 1 of 5.

The Star Lecture series has been developed by the University to allow teachers and pupils access to exciting curriculum resources delivered by some of our leading academic staff. Filmed and recorded at the University, these lectures will cover topic areas on the national curriculum and exam syllabuses, link students' studies to current research and offer an insight into university study.

Intercostal Spaces simply explained. Anatomy lecture for medical students BY medical students studying for the USMLE Step 1 or NCLEX

This lecture steps the student through transforming Maxwell's equations into Fourier space. It illustrates the Fourier-space concept and discusses benefits and consequences. The lecture includes converting this form of Maxwell's equations into matrix form for numerical solution, but saves the solution discussion for following lectures.

Prerequisite Lectures: 2, 6, and 7

Explore streamlines inside a Spinning container

Captain James A. “Jim” Lovell, Jr shared stories from his career as a naval aviator, test pilot, and NASA astronaut at the 2014 Vice Adm. Donald D. Engen Flight Jacket Night Lecture. Broadcast live on Friday, October 17, 2014, the event was a part of the National Air and Space Society Lecture Series.

During his Naval career, Jim Lovell had numerous aviator assignments, including a 4-year tour as a test pilot at the Naval Air Test Center, Patuxent River, Maryland. He has logged more than 7,000 hours flying time--more than 3,500 hours in jet aircraft. Lovell was selected as an Astronaut by NASA in September 1962. He served as backup pilot for Gemini 4, backup Commander for Gemini 9, and backup Commander to Neil Armstrong for the Apollo 11 lunar landing mission. On December 4, 1965, he and Frank Borman flew on the Gemini 7 mission which lasted 330 hours and 35 minutes and included the first rendezvous of two manned maneuverable spacecraft. Lovell also commanded Gemini 12 with Pilot Edwin Aldrin which launched on November 11, 1966. Lovell was Command Module Pilot and Navigator on Apollo 8, the first human spaceflight to the moon, in December 1968. Lovell was the Commander of Apollo 13 and became the first man to journey twice to the moon. Lovell held the record for time in space with a total of 715 hours and 5 minutes until surpassed by the Skylab flights.

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Spherical Coordinates in Space. Here we introduce the basics of spherical coordinates in 3D space. Spherical form is another form in which we can express the location of a point in 3D space. Subscribe on YouTube:

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Lecture 1 of Leonard Susskind's Modern Physics concentrating on General Relativity. Recorded September 22, 2008 at Stanford University.

This Stanford Continuing Studies course is the fourth of a six-quarter sequence of classes exploring the essential theoretical foundations of modern physics. The topics covered in this course focus on classical mechanics. Leonard Susskind is the Felix Bloch Professor of Physics at Stanford University.

Stanford Continuing Studies:


About Leonard Susskind:


Stanford University Channel on YouTube:

In her final Gresham Lecture, Professor Crawford talks about where the next big breakthrough will come from:

For each exciting advance or discovery that takes place in Astronomy, other just as important questions either arise or remain unanswered. In my last Gresham lecture I shall review what the near future might bring – the exciting space missions, satellites and telescopes – and the fundamental scientific challenges they are designed to tackle.

The transcript and downloadable versions of the lecture are available from the Gresham College website:

Gresham College has been giving free public lectures since 1597. This tradition continues today with all of our five or so public lectures a week being made available for free download from our website. There are currently over 1,800 lectures free to access or download from the website.
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(September 24, 2012) Leonard Susskind gives a broad introduction to general relativity, touching upon the equivalence principle.

This series is the fourth installment of a six-quarter series that explore the foundations of modern physics. In this quarter, Leonard Susskind focuses on Einstein's General Theory of Relativity.


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Various aspects of “Banking Awareness” are being discussed in detail in these video lectures. These lectures cover intricate aspects/concepts associated with banking operations. Moreover, some Economic concepts in broader perspective are also covered, as and when required.
These are useful for civil services, all types of banking examinations and all other competitive examinations, where Economy is one of the subjects. These can also be viewed by students pursuing UG/PG academic programmes as well as professionals so as to enhance their knowledge/skills.
This is the Third Module in this series.

Fay Dowker speaks at a Perimeter Institute Public Lecture on November 2, 2011.

Black holes are hot! This discovery made by Stephen Hawking ties together gravity, spacetime, quantum matter, and thermal systems into the beautiful and exciting science of Black Hole Thermodynamics. Its beauty lies in the powerful way it speaks of the unity of physics. The excitement arises because it tells us that there is something lacking in our understanding of spacetime and, at the same time, gives us a major clue as to what the missing ingredient should be. Theoretical physicists at Perimeter Institute and elsewhere are pioneering a proposal, known as Causal Set Theory, for the structure held by these most fundamental atoms of spacetime. In this talk, Professor Dowker describes black hole thermodynamics and argue that it is telling us that spacetime itself is granular or atomic at very tiny scales.

More Perimeter Public Lectures can be found at:

Description

Sir Roger Penrose is one of the world's leading mathematical physicists. He is also joint winner of the Wolf prize with Stephen Hawking for their contribution to our understanding of the universe. Some of his discoveries include Penrose Tiling, Twistor theory and works about the geometry of spacetime. He is also a recreational mathematician and philosopher.

About TEDx, x = independently organized event
In the spirit of ideas worth spreading, TEDx is a program of local, self-organized events that bring people together to share a TED-like experience. At a TEDx event, TEDTalks video and live speakers combine to spark deep discussion and connection in a small group. These local, self-organized events are branded TEDx, where x = independently organized TED event. The TED Conference provides general guidance for the TEDx program, but individual TEDx events are self-organized.* (*Subject to certain rules and regulations)

Logistics, course topics, word RAM, predecessor, van Emde Boas, y-fast tries.

Please see Problem 1 of Assignment 1
at for
a corrected analysis of the space complexity of van Emde Boas trees

Chris Welch, of International Space University, joined us on June 22 to explain how the new era of space exploration is less Cape Canaveral and more Silicon Valley. From nanosats, to asteroid mining, and beyond this talk is a must for anyone whose ambitions stretch further than this planet.

Dr Katharine Giles (UCL Centre for Polar Observation & Modelling)

The Arctic's supposed promise of abundant natural resources, shipping routes and scientific discoveries, has a long held fascination for those prepared to brave its harsh environment. With climate models predicting that the Polar Regions are the most sensitive to climate change, our need to understand them becomes increasingly important. The sub-zero temperatures and inhospitable icescapes faced by explorers also present problems to scientists collecting data.

This lecture focuses on how satellites can help us understand the changing Arctic, and also comes back down to Earth to show UCL scientists stepping out onto the frozen ocean to validate the European Space Agency's CryoSat-2 satellite, which is designed to measure changes in the ice cover with unprecedented accuracy.

Rotation is a fundamental physical process throughout the Universe. So much is spinning, from planets and stars revolving on their axes, to whole spiral galaxies rotating around their centre. We shall start by looking at the fundamentals of rotational motion, including the concept of angular momentum. This then will be extended to show what observations of rotation can tell us about how planetary systems form and develop, how neutron stars evolve with time, and how rotational motion provides crucial evidence for the presence and distribution of the elusive dark matter.

The transcript and downloadable versions of the lecture are available from the Gresham College website:


Gresham College has been giving free public lectures since 1597. This tradition continues today with all of our five or so public lectures a week being made available for free download from our website.

What may have started as a science fiction speculation—that perhaps the universe as we know it is a computer simulation—has become a serious line of theoretical and experimental investigation among physicists, astrophysicists, and philosophers.

Neil deGrasse Tyson, Frederick P. Rose Director of the Hayden Planetarium, hosts and moderates a panel of experts in a lively discussion about the merits and shortcomings of this provocative and revolutionary idea. The 17th annual Isaac Asimov Memorial Debate took place at The American Museum of Natural History on April 5, 2016.

2016 Asimov Panelists:

David Chalmers
Professor of philosophy, New York University

Zohreh Davoudi
Theoretical physicist, Massachusetts Institute of Technology

James Gates 
Theoretical physicist, University of Maryland

Lisa Randall
Theoretical physicist, Harvard University

Max Tegmark 
Cosmologist, Massachusetts Institute of Technology

The late Dr. Isaac Asimov, one of the most prolific and influential authors of our time, was a dear friend and supporter of the American Museum of Natural History.  In his memory, the Hayden Planetarium is honored to host the annual Isaac Asimov Memorial Debate — generously endowed by relatives, friends, and admirers of Isaac Asimov and his work — bringing the finest minds in the world to the Museum each year to debate pressing questions on the frontier of scientific discovery.  Proceeds from ticket sales of the Isaac Asimov Memorial Debates benefit the scientific and educational programs of the Hayden Planetarium.

Cylindrical Coordinates in Space. Here we introduce the basics of cylindrical coordinates in 3D space. Cylindrical form is another form in which we can express the location of a point in 3D space. Subscribe on YouTube:

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The Space Technology and Exploration Directorate at NASA Langley Research Center presented a five-part lecture series on “The Future of America’s Space Exploration Program” on the campus of Christopher Newport University. Each 75-minute lecture took place at the Yoder Barn Theatre in Newport News, Virginia and explores the ins and outs of America’s vision for deep space exploration.

Lecture 1: Path to Mars and Asteroid Redirect Mission: The First Step
Lecture 2: The Next Human Spacecraft: Orion and the Launch Abort System
Lecture 3: Escaping Earth’s Gravity: Space Launch System
Lecture 4: Mars Entry, Descent and Landing with Humans
Lecture 5: Spacecraft, Habitats and Radiation Protection

At the beginning of the nineteenth century, communication was slow, even relatively short journeys were uncertain and time-consuming, and people were dependant on the forces of nature for energy; this lecture charts the development of new modes of communication, from the railway to the radio, the telegraph to the telephone, the steamship to the motor-car and examines their efforts on perceptions of time and space.

The lecture transcript and downloadable versions of the lecture are available from the Gresham College website:


Gresham College has been giving free public lectures since 1597. This tradition continues today with all of our five or so public lectures a week being made available for free download from our website.

Dr Kevin Fong takes a trip on a parabolic flight (the ‘vomit comet’) to see what it’s like to play table tennis in space.
Watch the full second episode of the 2015 CHRISTMAS LECTURES on ‘How to survive in space’ on the Ri Channel now:
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Without gravity to pull the ball back down to the table, what happens when you play ping pong? Turns out, you get a sort of real-world ‘pong’, where the ball travels in nearly perfect straight lines.
In the second his CHRISTMAS LECTURES, space doctor, Kevin Fong explores 'Life in orbit' on board the International Space Station. As British astronaut Tim Peake settles in to his new home on the Station he sends special reports about what it takes to live and work in space.

400 km above the Earth, hurtling at a speed of 17,500 mph, astronauts' bones and muscles waste away, the oxygen they breathe is artificially made, they face constant threats from micrometeorites, radiation and extreme temperatures. If a medical emergency strikes, Tim Peake is a very long way from home!

In its 15 year lifetime, the International Space Station has never had a major accident. With a British astronaut in orbit, gravity defying experiments and guest astronauts in the lecture theatre Dr Kevin Fong shows us how to survive 'Life in orbit.'


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(April 9, 2012) In the first lecture of the series Leonard Susskind discusses the concepts that will be covered throughout the course.

In 1905, while only twenty-six years old, Albert Einstein published On the Electrodynamics of Moving Bodies and effectively extended classical laws of relativity to all laws of physics, even electrodynamics. In this course, Professor Susskind takes a close look at the special theory of relativity and also at classical field theory. Concepts addressed here includes space-time and four-dimensional space-time, electromagnetic fields and their application to Maxwell's equations.

Originally presented in the Stanford Continuing Studies Program.

Stanford University:


Stanford Continuing Studies Program:


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The universe is full of giant structures like galaxies and clusters of galaxies. What holds them together? Over the past century, many diverse observations indicate that the glue holding these objects together is the gravitational pull of an invisible, elusive substance called dark matter. The evidence suggests that dark matter makes up 85 percent of the matter in the universe. But, though we know that this dark matter exists, we do not know what it is. This lecture will sift through the evidence on dark matter using the same questions invoked to solve a murder mystery in the game Clue: Who? Where? What? Could the answers be Neutralino, in a dwarf galaxy, seen with gamma rays? Our game of Cosmic Clue is ongoing and scientists are hot on the trails of a number of suspects.

About the Speaker:
Andrea Albert first learned about the mysterious dark matter of the universe in high school. As an undergraduate at Rice University, she became fascinated with this and other questions on the boundary between astrophysics and particle physics. She went to graduate school at the Ohio State University, where she joined the Fermi Gamma-ray Space Telescope group to search for rare, faint signals from dark matter interactions. She continues this research at SLAC, where she is also working on the design of a next-generation gamma-ray telescope.

Special Note:
To demonstrate how crucial dark matter is to the structure of spiral galaxies like our own Milky Way, Universe Sandbox ² was used to create a typical spiral galaxy and then simulate what happens when you remove the dark matter component. Visit their website at:

Lines in Space. In this video we cover the basics about lines in 3D space. To write a set of equations that represents a line in space, you need a point on the line, as well as a direction vector for the line.

Help us caption & translate this video!

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Richard Feynman gave his famous talk There's Plenty of Room at the Bottom (Original Transcript Available Here : on December 29th 1959 at the annual meeting of the American Physical Society at the California Institute of Technology (Caltech) as his vision on how physics and engineering could move in the direction that could eventually create nanotechnology.

Really good ideas and strokes of genius are often manifest in the right questions being asked: How small can information be encoded? How can information be written? How can information it be read? All of these important Hows were asked by Feynman in a time when computers had to be put in large rooms and when the impending space race was forcing engineers to do some serious strategic thinking in making technology small enough to be lifted by rockets into space to function as serious tools in scientific exploration and defence.

Feynman himself may not have invented the technology we see in the development and continuity of the computer age, but the fact that even in the early 1960's nanotechnology was being considered as a serious field of study was definitely a factor contributing to the boom in computer technology seen in the late 20th century and continues to reach more spectacular levels of sophistication in the 21st century.

Jump 25 years forward into the year 1984, when Feynman tries to retell his 1959 lecture from a more modern perspective in that many aspects of his vision have been fulfilled, particularly with the invention of the electron microscope, the atomic force microscope and experimental manipulation of the atomic scale of matter. Also discussed is the current practical field of photolithography for the manufacture of bipolar transistors and junctions used in computer chips done on an industrial scale and how this process continues with ever decreasing wavelength capabilities of lasers from UV to X-rays. Feynman also discusses the boundaries of miniaturization and how the scale differences affect the function of certain aspects of technology as well as in nature.

In the true spirit of Feynman, the discussion goes into the colorful details and gives diagrammatic examples of how this field had progressed from 1959 to 1984. We can only imagine how Feynman would have felt about the modern developments in nanotechnology in the 21st century where entirely exotic principles of physics may begin to become technologically significant, including vacuum fluctuations and quantum entanglements. Without a doubt he would have found our developments exciting but always within the realms of understanding by studying the most fundamental language of nature, quantum mechanics, to bring our macroscopic brains into visualizing, however abstractly, the tiny machinery of nature.

Various aspects of “Banking Awareness” are being discussed in detail in these video lectures. These lectures cover intricate aspects/concepts associated with banking operations. Moreover, some Economic concepts in broader perspective are also covered, as and when required.
These are useful for civil services, all types of banking examinations and all other competitive examinations, where Economy is one of the subjects. These can also be viewed by students pursuing UG/PG academic programmes as well as professionals so as to enhance their knowledge/skills.
This is the First Module in this series.

Pour suivre la beautytube abonnez vous sur

Premiere web serie le 17 juin
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President Barack Hussein Obama gave a speech at a memorial service in Dallas, for the slain police officers. He should have stayed on the golf course.

He mentioned himself 45 times, as well as tossing in Black Lives Matter, Alton Sterling, hoodies, gun control, and a bonus mention of Jim Crow.

Obama can't do anything properly. He gives the same ridiculous speech wherever he goes; campaign stop or memorial service, it's all the same garbage.

Watch the leftist Juan Williams try, and fail, to defend Obama's behavior.

World-renowned astronomer and prize-winning professor of astronomy at the University of California, Berkeley, Alex Filippenko, explores some of the mysteries of the universe at a special lecture at the Santa Barbara Museum of Natural History. Filippenko discusses observations of very distant exploding starts called super-novae that provide intriguing evidence that the expansion of the universe is now speeding up. Over the largest scales of space, the universe seems to be dominated by a repulsive dark energy of unknown origin, stretching the very fabric of space itself faster and faster with time. Series: Voices [1/2008] [Science] [Show ID: 13184]