Principles of Electricity (1945) - Part 1
Breaks down structure of matter into atoms and, by use of conventional symbols, shows the action of electrons within an atom. The principles involved in the flow of current are explained and a volt, ampere and Ohm are defined. Scientific Advisors: Dr. Saul Dushman; Dr. Roman Smoluchowski; Dr. David Harker Production Company: Wolff (Raphael G.) Studios, Inc. Source: http://www.archive.org/details/principles_of_electricity Creative Commons license: Public Domain http://creativecommons.org/licenses/publicdomain/
principles
electricity
matter
atoms
electrons
scientific
Channels:
The Astronomers
Added: 822 days ago by
deek
Runtime: 10:45 |
Views: 174 |
Comments: 0
Not yet rated
Principles of Electricity (1945) - Part 2
Breaks down structure of matter into atoms and, by use of conventional symbols, shows the action of electrons within an atom. The principles involved in the flow of current are explained and a volt, ampere and Ohm are defined. Scientific Advisors: Dr. Saul Dushman; Dr. Roman Smoluchowski; Dr. David Harker Production Company: Wolff (Raphael G.) Studios, Inc. Source: http://www.archive.org/details/principles_of_electricity Creative Commons license: Public Domain http://creativecommons.org/licenses/publicdomain/
principles
electricity
matter
atoms
electrons
scientific
Channels:
The Astronomers
Added: 822 days ago by
deek
Runtime: 09:14 |
Views: 141 |
Comments: 0
Not yet rated
Line spectrum of hydrogen atom
The Ruther Fords Alpha particle-gold foil experiment has proved that most of the mass of an atom is concentrated only in a very small region and thus he called this region as the nucleus of atom. Ruther Ford proposed that (BUT WITHOUT ANY EXPERIMANTAL EVIDENCES) electrons revolved around their nuclei in circular orbits with which are just sufficient to balance the attractive force by nuclei. Unfortunately no scientists have questioned this high-speed motion of electrons around the nucleus and this was the beginning of the development of many misleading theories in the history of physical science. Matter wave, uncertainty principle, electron cloud around the nucleus, wave particle duality for particles etc. Charged particles like electron have a standing- electric field and magnetic field in right angle regardless of any kind of its motions.Uncharged particles like neutron have a standing- magnetic field.Since the standing- electric and magnetic fields, an electron cannot travel in a straight line when it accelerated.When a neutron is accelerated, its standing- magnetic field makes it to oscillate. In essence, a particles standing field lines is the reason for the wave nature when it moves at a high speed.The Davisson and Germer experiment showed that particles behave as wave when they are accelerated. But without knowing the structure of particles they blindly supported the Louis DeBroglies matter wave theory.This matter wave theory has led to the development of the quantum mechanical model of atom.The model says that, the nucleus of an atom is surrounded by a series of stationary waves. These waves have crests at certain points, each complete standing wave representing an orbit. The absolute square of the amplitude of the wave at any point at a given time is a measure of the probability that an electron will be found there. Thus, an electron can no longer be said to be at any precise point at any given time. This series of stationary waves by the electrons are used today for explaining all phenomenon that generated by atoms. Jumping of electrons: The space matter density decreases with the increasing of the distance from the nucleus. When an electron oscillates in an atom, for the every oscillation toward the direction of the nucleus, the high density space matter in the inner region of the atom expels the electron to an outer low density space matter region. Line spectrum of hydrogen atom: When the electron shell of a hydrogen atom is excited it will oscillate in its natural frequency, and so the electron present in the shell. This oscillation of the electron causes the emission of the shortest wavelength Lyman series photon (because that frequency is the natural frequency of the electron shell of hydrogen atom) and jumps from the shell to an outer transitory shell. If there is no any further excitation for the atom, the electron will instantaneously falls back to its original shell. Also, this fall into the shell can cause, the shell get excited in a nominal fashion and the emission of a low intensity photon in the natural frequency of the shell. But, if the transitory shell (to which the electron has initially jumped) is simultaneously excited by some ways (for example, collision of an energetic electron from an external source-in a discharge tube or collision between atom),the electron will again get excited and emit a photon in a longer wavelength, in the natural frequency of that transitory shell. Also, this excitation of the electron causes a further jumping to a more outer transitory shell, and these processes can be continued until the electron is expelled out from the atom and to turn the atom into plasma of hydrogen at a very high temperature.For very jumping of the electron to a more and more outer transitory shells, and the excitation of that transitory shell can cause the emission of more and more long wavelength photons, and this is the reason for the emission of more long wavelength photons like Balmer series, Paschen series, Brackett series, Pfund series etc. http://www.physics-edu.org
Line
spectrum
hydrogen
atom
emission
Balmer
series
Paschen
Brackett
Pfund
model
structure
new
space
matter
wave
electron
clouds
particle
Channels:
The Astronomers
Added: 822 days ago by
deek
Runtime: 07:46 |
Views: 218 |
Comments: 0
3of5_Cosmic Odyssey-Hubble Heritage
This is part 3 of a 5 part episode. To watch the full show go to my channel (Zuke696) then go to my Playlist, find the show then click Play All - Hubble's Heritage - In 1929, astronomer Edwin Hubble made one of the greatest discoveries in the history of science -- the expansion of the universe. To honor this king of cosmology, an orbiting observatory named the Hubble Space Telescope was launched in 1990 after years of research and delay. Hubble's Heritage takes a closer look at this instrument, from its beginning as a flawed engineering nightmare to its evolution, through corrective optics, into humanity's eyes on the universe. Viewers see some of the astonishing images captured by the Hubble Space Telescope through the years and learn of their significance to astronomers. Designers of the next generation of space telescopes explain the challenges that must be met before Hubble's successors can reveal more mysteries of the universe.
Cosmos
Universe
Space
Astronomy
Planets
Stars
Galaxies
Cosmology
Hubble
Big
Bang
Dark
Matter
Energy
Channels:
The Astronomers
Added: 826 days ago by
deek
Runtime: 09:00 |
Views: 260 |
Comments: 0
Not yet rated
4of5_Cosmic Odyssey-Hubble Heritage
This is part 4 of a 5 part episode. To watch the full show go to my channel (Zuke696) then go to my Playlist, find the show then click Play All - Hubble's Heritage - In 1929, astronomer Edwin Hubble made one of the greatest discoveries in the history of science -- the expansion of the universe. To honor this king of cosmology, an orbiting observatory named the Hubble Space Telescope was launched in 1990 after years of research and delay. Hubble's Heritage takes a closer look at this instrument, from its beginning as a flawed engineering nightmare to its evolution, through corrective optics, into humanity's eyes on the universe. Viewers see some of the astonishing images captured by the Hubble Space Telescope through the years and learn of their significance to astronomers. Designers of the next generation of space telescopes explain the challenges that must be met before Hubble's successors can reveal more mysteries of the universe.
Cosmos
Universe
Space
Astronomy
Planets
Stars
Galaxies
Cosmology
Hubble
Big
Bang
Dark
Matter
Energy
Channels:
The Astronomers
Added: 826 days ago by
deek
Runtime: 09:00 |
Views: 224 |
Comments: 0
Not yet rated
1of5_Cosmic Odyssey-Hubble Heritage
This is part 1 of a 5 part episode. To watch the full show go to my channel (Zuke696) then go to my Playlist, find the show then click Play All - Hubble's Heritage - In 1929, astronomer Edwin Hubble made one of the greatest discoveries in the history of science -- the expansion of the universe. To honor this king of cosmology, an orbiting observatory named the Hubble Space Telescope was launched in 1990 after years of research and delay. Hubble's Heritage takes a closer look at this instrument, from its beginning as a flawed engineering nightmare to its evolution, through corrective optics, into humanity's eyes on the universe. Viewers see some of the astonishing images captured by the Hubble Space Telescope through the years and learn of their significance to astronomers. Designers of the next generation of space telescopes explain the challenges that must be met before Hubble's successors can reveal more mysteries of the universe.
Cosmos
Universe
Space
Astronomy
Planets
Stars
Galaxies
Cosmology
Hubble
Big
Bang
Dark
Matter
Energy
Channels:
The Astronomers
Added: 826 days ago by
deek
Runtime: 09:00 |
Views: 365 |
Comments: 0
Not yet rated
2of5_Cosmic Odyssey-Hubble Heritage
This is part 2 of a 5 part episode. To watch the full show go to my channel (Zuke696) then go to my Playlist, find the show then click Play All - Hubble's Heritage - In 1929, astronomer Edwin Hubble made one of the greatest discoveries in the history of science -- the expansion of the universe. To honor this king of cosmology, an orbiting observatory named the Hubble Space Telescope was launched in 1990 after years of research and delay. Hubble's Heritage takes a closer look at this instrument, from its beginning as a flawed engineering nightmare to its evolution, through corrective optics, into humanity's eyes on the universe. Viewers see some of the astonishing images captured by the Hubble Space Telescope through the years and learn of their significance to astronomers. Designers of the next generation of space telescopes explain the challenges that must be met before Hubble's successors can reveal more mysteries of the universe.
Cosmos
Universe
Space
Astronomy
Planets
Stars
Galaxies
Cosmology
Hubble
Big
Bang
Dark
Matter
Energy
Channels:
The Astronomers
Added: 826 days ago by
deek
Runtime: 09:00 |
Views: 239 |
Comments: 0
Not yet rated
The Library Of Alexandria - Best Of Carl Sagan's Cosmos (7)
The Library Of Alexandria - Best Of Carl Sagan's Cosmos (Part 7). --- Subscribe to Science & Reason: • http://www.youtube.com/Best0fScience • http://www.youtube.com/SagansCosmos • http://www.youtube.com/FFreeThinker --- BEST OF CARL SAGAN'S "COSMOS": 1) 10 Years After: Carl Sagan & Ann Druyan Reflect: http://www.youtube.com/watch?v=leTNfwfH0Jc 2) Lost Between Immensity And Eternity: http://www.youtube.com/watch?v=vIVsDg6U0LU 3) The Realm Of The Galaxies: http://www.youtube.com/watch?v=1axoV6HhWfI 4) Our Galaxy, The Milky Way: http://www.youtube.com/watch?v=eOazBTHzRYA 5) Our Solar System: http://www.youtube.com/watch?v=iBqjob-UVeo 6) Eratosthenes And The Round Earth Model: http://www.youtube.com/watch?v=en5UKtcNujI 7) The Library Of Alexandria: http://www.youtube.com/watch?v=vVQs4B2jAW0 8) A Short History Of The Universe: http://www.youtube.com/watch?v=7n2r0qOxJ6k 9) Artificial And Natural Selection: http://www.youtube.com/watch?v=i3uToVWZkWM 10) The Cosmic Year: http://www.youtube.com/watch?v=yFqbm_94nTM 11) Tree Of Life - 4 Billion Years Of Evolution: http://www.youtube.com/watch?v=KF0UECN4ndA 12) The Miracle Of Life: http://www.youtube.com/watch?v=TOyojWeOYNA 13) DNA - The Common Basis Of Life: http://www.youtube.com/watch?v=ecmuvjSykf8 14) Abiogenesis The Origin Of Life: http://www.youtube.com/watch?v=yet1xkAv_HY 15) Astronomy vs Astrology: http://www.youtube.com/watch?v=ImaQS9NJ0nI 16) Pictures In The Sky: http://www.youtube.com/watch?v=iwCAwc4bge4 17) Ancient Astronomy: http://www.youtube.com/watch?v=H-5dwJwau1Y 18) Triumph Of Modern Science Over Medieval Superstition: http://www.youtube.com/watch?v=8lfmRqT-B_c 19) The Mysterious Tonguska Event: http://www.youtube.com/watch?v=irVof7adq4s --- Carl Edward Sagan, Ph.D. (1934-1996) was an American astronomer, astrochemist, author, and highly successful popularizer of astronomy, astrophysics and other natural sciences. He pioneered exobiology and promoted the Search for Extra-Terrestrial Intelligence (SETI). He is world-famous for writing popular science books and for co-writing and presenting the award-winning 1980 television series "Cosmos: A Personal Voyage", which has been seen by more than 600 million people in over 60 countries, making it the most widely watched PBS program in history. A book to accompany the program was also published. He also wrote the novel "Contact", the basis for the 1997 Robert Zemecki's film of the same name starring Jodie Foster. During his lifetime, Sagan published more than 600 scientific papers and popular articles and was author, co-author, or editor of more than 20 books. In his works, he frequently advocated skeptical inquiry, secular humanism, and the scientific method. http://www.carlsagan.com .
The
Library
Of
Alexandria
Egypt
Greece
Ancient
History
Best
Carl
Sagan
Sagans
Cosmos
Episode
Scientists
Science
Astronomy
Astronomer
Astrophysics
Universe
Education
SETI
Hubble
Images
Big
Bang
Space
Solar
System
Planets
Physics
Origin
Life
Human
Evolution
Lecture
Videos
Series
Einstein
Theory
Relativity
Time
Dilation
Albert
Black
Holes
Dark
Matter
Energy
Milky
Way
Galaxy
Atoms
Quarks
Speed
Light
Gravity
Channels:
The Astronomers
Added: 827 days ago by
deek
Runtime: 10:59 |
Views: 588 |
Comments: 0
Not yet rated
Ancient Astronomy - Best Of Carl Sagan's Cosmos (17)
Ancient Astronomy - Best Of Carl Sagan's Cosmos (Part 17) --- Subscribe to Science & Reason: • http://www.youtube.com/Best0fScience • http://www.youtube.com/SagansCosmos • http://www.youtube.com/FFreeThinker --- BEST OF CARL SAGAN'S "COSMOS": 1) 10 Years After: Carl Sagan & Ann Druyan Reflect: http://www.youtube.com/watch?v=leTNfwfH0Jc 2) Lost Between Immensity And Eternity: http://www.youtube.com/watch?v=vIVsDg6U0LU 3) The Realm Of The Galaxies: http://www.youtube.com/watch?v=1axoV6HhWfI 4) Our Galaxy, The Milky Way: http://www.youtube.com/watch?v=eOazBTHzRYA 5) Our Solar System: http://www.youtube.com/watch?v=iBqjob-UVeo 6) Eratosthenes And The Round Earth Model: http://www.youtube.com/watch?v=en5UKtcNujI 7) The Library Of Alexandria: http://www.youtube.com/watch?v=vVQs4B2jAW0 8) A Short History Of The Universe: http://www.youtube.com/watch?v=7n2r0qOxJ6k 9) Artificial And Natural Selection: http://www.youtube.com/watch?v=i3uToVWZkWM 10) The Cosmic Year: http://www.youtube.com/watch?v=yFqbm_94nTM 11) Tree Of Life - 4 Billion Years Of Evolution: http://www.youtube.com/watch?v=KF0UECN4ndA 12) The Miracle Of Life: http://www.youtube.com/watch?v=TOyojWeOYNA 13) DNA - The Common Basis Of Life: http://www.youtube.com/watch?v=ecmuvjSykf8 14) Abiogenesis The Origin Of Life: http://www.youtube.com/watch?v=yet1xkAv_HY 15) Astronomy vs Astrology: http://www.youtube.com/watch?v=ImaQS9NJ0nI 16) Pictures In The Sky: http://www.youtube.com/watch?v=iwCAwc4bge4 17) Ancient Astronomy: http://www.youtube.com/watch?v=H-5dwJwau1Y 18) Triumph Of Modern Science Over Medieval Superstition: http://www.youtube.com/watch?v=8lfmRqT-B_c 19) The Mysterious Tonguska Event: http://www.youtube.com/watch?v=irVof7adq4s --- Carl Edward Sagan, Ph.D. (1934-1996) was an American astronomer, astrochemist, author, and highly successful popularizer of astronomy, astrophysics and other natural sciences. He pioneered exobiology and promoted the Search for Extra-Terrestrial Intelligence (SETI). He is world-famous for writing popular science books and for co-writing and presenting the award-winning 1980 television series "Cosmos: A Personal Voyage", which has been seen by more than 600 million people in over 60 countries, making it the most widely watched PBS program in history. A book to accompany the program was also published. He also wrote the novel "Contact", the basis for the 1997 Robert Zemecki's film of the same name starring Jodie Foster. During his lifetime, Sagan published more than 600 scientific papers and popular articles and was author, co-author, or editor of more than 20 books. In his works, he frequently advocated skeptical inquiry, secular humanism, and the scientific method. http://www.carlsagan.com .
Ancient
Astronomy
Best
Carl
Sagan
Sagans
Cosmos
Episode
Scientists
Science
Astronomer
Astrophysics
Universe
Education
Educational
SETI
Big
Bang
Space
Galaxies
Solar
System
Planets
Physics
Origin
Human
Evolution
Lecture
Videos
Series
Einstein
Theory
Relativity
Time
Dilation
Albert
Black
Holes
Dark
Matter
Energy
Milky
Way
Galaxy
Atoms
Quarks
Speed
Light
Gravity
Hawking
Channels:
The Astronomers
Added: 827 days ago by
deek
Runtime: 08:58 |
Views: 753 |
Comments: 0
Not yet rated
Triumph Of Modern Science Over Medieval Superstition
Johannes Kepler And The Triumph Of Modern Science Over Medieval Superstition - Best Of Carl Sagan's Cosmos (Part 18). Subscribe to Science & Reason: • http://www.youtube.com/SagansCosmos • http://www.youtube.com/Best0fScience • http://www.youtube.com/FFreeThinker BEST OF CARL SAGAN'S "COSMOS": 1) 10 Years After: Carl Sagan & Ann Druyan Reflect: http://www.youtube.com/watch?v=leTNfwfH0Jc 2) Lost Between Immensity And Eternity: http://www.youtube.com/watch?v=vIVsDg6U0LU 3) The Realm Of The Galaxies: http://www.youtube.com/watch?v=1axoV6HhWfI 4) Our Galaxy, The Milky Way: http://www.youtube.com/watch?v=eOazBTHzRYA 5) Our Solar System: http://www.youtube.com/watch?v=iBqjob-UVeo 6) Eratosthenes And The Round Earth Model: http://www.youtube.com/watch?v=en5UKtcNujI 7) The Library Of Alexandria: http://www.youtube.com/watch?v=vVQs4B2jAW0 8) A Short History Of The Universe: http://www.youtube.com/watch?v=7n2r0qOxJ6k 9) Artificial And Natural Selection: http://www.youtube.com/watch?v=i3uToVWZkWM 10) The Cosmic Year: http://www.youtube.com/watch?v=yFqbm_94nTM 11) Tree Of Life - 4 Billion Years Of Evolution: http://www.youtube.com/watch?v=KF0UECN4ndA 12) The Miracle Of Life: http://www.youtube.com/watch?v=TOyojWeOYNA 13) DNA - The Common Basis Of Life: http://www.youtube.com/watch?v=ecmuvjSykf8 14) Abiogenesis The Origin Of Life: http://www.youtube.com/watch?v=yet1xkAv_HY 15) Astronomy vs Astrology: http://www.youtube.com/watch?v=ImaQS9NJ0nI 16) Pictures In The Sky: http://www.youtube.com/watch?v=iwCAwc4bge4 17) Ancient Astronomy: http://www.youtube.com/watch?v=H-5dwJwau1Y 18) Triumph Of Modern Science Over Medieval Superstition: http://www.youtube.com/watch?v=8lfmRqT-B_c 19) The Mysterious Tonguska Event: coming soon Carl Edward Sagan, Ph.D. (1934-1996) was an American astronomer, astrochemist, author, and highly successful popularizer of astronomy, astrophysics and other natural sciences. He pioneered exobiology and promoted the Search for Extra-Terrestrial Intelligence (SETI). He is world-famous for writing popular science books and for co-writing and presenting the award-winning 1980 television series "Cosmos: A Personal Voyage", which has been seen by more than 600 million people in over 60 countries, making it the most widely watched PBS program in history. A book to accompany the program was also published. He also wrote the novel "Contact", the basis for the 1997 Robert Zemecki's film of the same name starring Jodie Foster. During his lifetime, Sagan published more than 600 scientific papers and popular articles and was author, co-author, or editor of more than 20 books. In his works, he frequently advocated skeptical inquiry, secular humanism, and the scientific method. • http://www.carlsagan.com Johannes Kepler (1571-1630) was a German mathematician, astronomer and astrologer, and key figure in the 17th century scientific revolution. He is best known for his eponymous laws of planetary motion, codified by later astronomers based on his works "Astronomia nova", "Harmonices Mundi", and "Epitome of Copernican Astrononomy". They also provided one of the foundations for Isaac Newton's theory of universal gravitation. During his career, Kepler was a mathematics teacher at a seminary school in Graz, Austria, an assistant to astronomer Tycho Brahe, the court mathematician to Emperor Rudolf II, a mathematics teacher in Linz, Austria, and an adviser to General Wallenstein. He also did fundamental work in the field of optics, invented an improved version of the refracting telescope (the Keplerian Telescope), and helped to legitimize the telescopic discoveries of his contemporary Galileo Galilei. Kepler lived in an era when there was no clear distinction between astronomy and astrology, but there was a strong division between astronomy (a branch of mathematics within the liberal arts) and physics (a branch of natural philosophy). • http://en.wikipedia.org/wiki/Johannes_Kepler .
Johannes
Kepler
Triumph
Of
Modern
Science
Over
Medieval
Superstition
Best
Carl
Sagan
Sagans
Cosmos
Nicolaus
Copernicus
Claudius
Ptolemaeus
Ptolemy
Martin
Luther
Newton
Tycho
Brahe
Galileo
Galilei
Maulbronn
Tübingen
Graz
Scientists
Astronomy
Astronomer
Astrophysics
Education
Educational
SETI
Big
Bang
Space
Galaxies
Solar
System
Planets
Physics
Lecture
Videos
Series
Einstein
Theory
Relativity
Black
Holes
Dark
Matter
Energy
Milky
Way
Galaxy
Atoms
Speed
Light
Gravity
Channels:
The Astronomers
Added: 827 days ago by
deek
Runtime: 10:59 |
Views: 522 |
Comments: 0
The discovery of Dark Matter ?
A Theory on The discovery of Dark Matter
Channels:
The Astronomers
Major questions in astronomy
Added: 1178 days ago by
cornelius
Runtime: 03:36 |
Views: 327 |
Comments: 0
Not yet rated