Please Disable Ad-Block To View This Website.

Documentarymania

Simply the Best Documentaries

546 Views. Sharing and Likes help a lot. Thanks!!
Hiding in the Light
Hiding in the Light  2014

This episode explores the wave theory of light as studied by mankind, noting that light has played an important role in scientific progress, with such early experiments from over 2000 years ago involving the camera obscura by the Chinese philosopher Mozi. Tyson describes the work of the 11th century Arabic scientist Ibn al-Haytham, considered to be one of the first to postulate on the nature of light and optics leading to the concept of the telescope, as well as one of the first researchers to use the scientific method. Tyson proceeds to discuss the nature of light as discovered by mankind. Work by Isaac Newton using diffraction through prisms demonstrated that light was composed of the visible spectrum, while findings of William Herschel in the 19th century showed that light also consisted of infrared rays. Joseph von Fraunhofer would later come to discover that by magnifying the spectrum of visible light, gaps in the spectrum would be observed. These Fraunhofer lines would later be determined to be caused by the absorption of light by electrons in moving between atomic orbitals when it passed through atoms, with each atom having a characteristic signature due to the quantum nature of these orbitals. This since has led to the core of astronomical spectroscopy, allowing astronomers to make observations about the composition of stars, planets, and other stellar features through the spectral lines, as well as observing the motion and expansion of the universe, and the existence of dark matter.

Genre: Science  Duration: 43:00

Related Searches: Physics, Ibn al-Haytham, Joseph von Fraunhofer, Diffraction, prism, Sspectrum, Spectroscopy, Dark matter, Optics

Series: Cosmos 2014

Archimedes Secret
Vegan 2017 The Film
The Last Reef
Africa the Greatest Show on Earth
Flight of the Butterflies
Honshu
A.I. and the Destiny of Mankind
The Fantastic Mr Feynman
Climbing Everest with a Mountain on My Back
Florence and the Uffizi Gallery
Operation Stonehenge
Fire Ants The Invincible Army
Inside the Brain of a Trader
Top Science Stories of 2017
Meditation Can It Change You
IMAX Hubble
New Dawn
Dawn Of Humanity
Rivals
The First Christianity
Planet Ant Life inside the Colony
Life of a Universe Creation
History of the Eagles 1
The Worst Car in the History of the World
Machu Picchu Decoded
No Impact Man The Documentary
The 21st Century Race for Space
Holy War
Bomb It
Robots
10 Things You Need to Know about the Future
The Search for a New Earth
Everything
Alien Technology
Dynamic Salt
The Day the Dinosaurs Died
Archimedes Secret
Vegan 2017 The Film
The Last Reef
Africa the Greatest Show on Earth
Flight of the Butterflies
Honshu
A.I. and the Destiny of Mankind
The Fantastic Mr Feynman
Climbing Everest with a Mountain on My Back
Florence and the Uffizi Gallery
Operation Stonehenge
Fire Ants The Invincible Army
Inside the Brain of a Trader
Top Science Stories of 2017
Meditation Can It Change You
IMAX Hubble
New Dawn
Dawn Of Humanity
Rivals
The First Christianity
Planet Ant Life inside the Colony
Life of a Universe Creation
History of the Eagles 1
The Worst Car in the History of the World
Machu Picchu Decoded
No Impact Man The Documentary
The 21st Century Race for Space
Holy War
Bomb It
Robots
10 Things You Need to Know about the Future
The Search for a New Earth
Everything
Alien Technology
Dynamic Salt
The Day the Dinosaurs Died


Follow our releases!



In  Facebook  


We use third-party cookies to show personalized advertising and gather information. By continuing in our website you agree with this use