Why It Was Almost Impossible to Make the Blue LED
The blue LED was supposed to be impossible—until a young engineer proposed a moonshot idea.
The Conquest of Light
The film discusses the evolution and potential of using light waves, particularly coherent light, for communication. It highlights the development of lasers at Bell Telephone Laboratories, explaining how they produce a highly controlled and intense beam of light that could revolutionize communication. The film emphasizes the vast possibilities of lasers, including applications in telecommunications, surgery, and exploring the universe, suggesting that this technology represents a significant step in humanity's understanding and use of light.
Top Billed Cast
Norman Rose Narrator
Similar movies
Why It Was Almost Impossible to Make the Blue LED Why It Was Almost Impossible to Make the Blue LED A Brief History of Time 
A Brief History of Time 01 Oct 1991
A Brief History of Time
This shows physicist Stephen Hawking's life as he deals with the ALS that renders him immobile and unable to speak without the use of a computer. Hawking's friends, family, classmates, and peers are interviewed not only about his theories but the man himself.
The Most Unknown 
The Most Unknown 16 Mar 2018
The Most Unknown
An epic documentary film that sends nine scientists to extraordinary parts of the world to uncover unexpected answers to some of humanity’s biggest questions. How did life begin? What is time? What is consciousness? How much do we really know? By introducing researchers from diverse backgrounds for the first time, then dropping them into new, immersive field work they previously hadn’t tackled, the film pushes the boundaries of how science storytelling is approached. What emerges is a deeply human trip to the foundations of discovery and a powerful reminder that the unanswered questions are the most crucial ones to pose. Directed by Emmy-nominated and Peabody Award-winning filmmaker Ian Cheney and advised by world-renowned filmmaker Werner Herzog, The Most Unknown is an ambitious look at a side of science never before shown on screen.
The Story of a Slough 
The Story of a Slough 25 May 2024
The Story of a Slough
When the Tanana River bridge was installed in Salcha, Alaska, the community worried about the levee's effects on fish wildlife. Salcha Elementary School, along with the help of Tanana Valley Watershed Association, conducted a 10-year scientific project with students to study the effects the levee had on Piledriver Slough. Tori Brannan - the filmmaker's mother - is a retired principal at Salcha Elementary and was the project's centerpiece. She shares her experiences with the project, the community, and how her daughter's involvement strengthened their relationship.
Black Holes: The Edge of All We Know 
Black Holes: The Edge of All We Know 18 Mar 2020
Black Holes: The Edge of All We Know
Black holes stand at the limit of what we can know. To explore that edge of knowledge, the Event Horizon Telescope links observatories across the world to simulate an earth-sized instrument. With this tool the team pursues the first-ever picture of a black hole, resulting in an image seen by billions of people in April 2019. Meanwhile, Hawking and his team attack the black hole paradox at the heart of theoretical physics—Do predictive laws still function, even in these massive distortions of space and time? Weaving them together is a third strand, philosophical and exploratory using expressive animation. “Edge” is about practicing science at the highest level, a film where observation, theory, and philosophy combine to grasp these most mysterious objects.
Cosmic Voyage 
Cosmic Voyage 09 Aug 1996
Cosmic Voyage
The Academy Award® nominee Cosmic Voyage combines live action with state-of-the-art computer-generated imagery to pinpoint where humans fit in our ever-expanding universe. Highlighting this journey is a "cosmic zoom" based on the powers of 10, extending from the Earth to the largest observable structures in the universe, and then back to the subnuclear realm.
Root of All Evil? 
Root of All Evil? 09 Jan 2006
Root of All Evil?
In this two-part Channel 4 series, Professor Richard Dawkins challenges what he describes as 'a process of non-thinking called faith'. He describes his astonishment that, at the start of the 21st century, religious faith is gaining ground in the face of rational, scientific truth. Science, based on scepticism, investigation and evidence, must continuously test its own concepts and claims. Faith, by definition, defies evidence: it is untested and unshakeable, and is therefore in direct contradiction with science. In addition, though religions preach morality, peace and hope, in fact, says Dawkins, they bring intolerance, violence and destruction. The growth of extreme fundamentalism in so many religions across the world not only endangers humanity but, he argues, is in conflict with the trend over thousands of years of history for humanity to progress to become more enlightened and more tolerant.
A Trip to Infinity 
A Trip to Infinity 26 Sep 2022
A Trip to Infinity
Does infinity exist? Can we experience the Infinite? In an animated film (created by artists from 10 countries) the world's most cutting-edge scientists and mathematicians go in search of the infinite and its mind-bending implications for the universe. Eminent mathematicians, particle physicists and cosmologists dive into infinity and its mind-bending implications for the universe.
The Universe: God and the Universe 
The Universe: God and the Universe 03 Jan 2011
The Universe: God and the Universe
Where did the universe come from and did a creator have a hand in making it? As scientists learn more about the universe, our ideas about exactly what God made (the earth, the universe, the multi-verse even nothing but empty space) have come into question.
Our Mr. Sun 
Our Mr. Sun 19 Nov 1956
Our Mr. Sun
One entry in a series of films produced to make science accessible to the masses—especially children—this film describes the sun in scientific but entertaining terms.
What is the Theory of Relativity? 
What is the Theory of Relativity? 15 Jan 1964
What is the Theory of Relativity?
In a compartment of the Moscow-Novosibirsk train, a young physicist meets famous film actors. The conversation accidentally comes to Einstein, and the woman begins to explain to her fellow travelers what the theory of relativity is. The actors are incidentally on their way to the shooting of a film about physicists, but they do not understand the subject at all.
Cosmic Dawn 
Cosmic Dawn 11 Jun 2025
Cosmic Dawn
For over three decades, NASA and an international team of scientists and engineers pushed the limits of technology, innovation, and perseverance to build and launch the James Webb Space Telescope, the most powerful space observatory ever created. Cosmic Dawn brings audiences behind the scenes with the Webb film crew, and never-before-heard testimonies revealing the real story of how this telescope overcame all odds.
The Unpredictable Factor 
The Unpredictable Factor 03 Nov 2022
The Unpredictable Factor
In today's climate debate, there is only one factor that cannot be calculated in climate models - humans. How can we nevertheless understand our role in the climate system and manage the crisis? Climate change is a complex global problem. Increasingly extreme weather events, rising sea levels, and more difficult living conditions - including for us humans - are already the order of the day. Global society has never faced such a complex challenge. For young people in particular, the frightening climate scenarios will be a reality in the future. For the global south, it is already today. To overcome this crisis, different perspectives are needed. "THE UNPREDICTABLE FACTOR" goes back to the origins of the German environmental movement, accompanies today's activists in the Rhineland in their fight against the coal industry and gives a voice to scientists from climate research, ethnology and psychology.
A Message to the Stars 
A Message to the Stars 23 Oct 2021
A Message to the Stars
For more than 50 years, we’ve been unsuccessfully searching for any evidence of intelligent extraterrestrial life. But, the discovery of thousands of exoplanets has meant the hope of finding them is higher than ever. If any messages could eventually be decoded and answered in any far, far away star, it could radically transform our consciousness as species and our place in the universe. A message from the stars changes life on Earth… forever.
Scotland's Einstein: James Clerk Maxwell - The Man Who Changed the World 
Scotland's Einstein: James Clerk Maxwell - The Man Who Changed the World 02 Dec 2015
Scotland's Einstein: James Clerk Maxwell - The Man Who Changed the World
Professor Iain Stewart reveals the story behind the Scottish physicist who was Einstein's hero; James Clerk Maxwell. Maxwell's discoveries not only inspired Einstein, but they helped shape our modern world - allowing the development of radio, TV, mobile phones and much more. Despite this, he is largely unknown in his native land of Scotland. Scientist Iain Stewart sets out to change that, and to celebrate the life, work and legacy of the man dubbed "Scotland's Forgotten Einstein".
Picture a Scientist 
Picture a Scientist 11 Nov 2020
Picture a Scientist
A documentary that looks at systemic sexism faced by women scientists in STEM fields.
Rat Brain 
Rat Brain Rat Brain
Rat Brain is a documentary that highlights Dr. John D. Douglass and his team's research at Seattle Pacific University on chronic stress' neurological impact, striving to uncover its link to suicidal behavior. Their work navigates ethical dilemmas while aiming to showcase vital insights into mental health and suicide prevention.
Microcosmos 
Microcosmos 06 Sep 1996
Microcosmos
A documentary of insect life in meadows and ponds, using incredible close-ups, slow motion, and time-lapse photography. It includes bees collecting nectar, ladybugs eating mites, snails mating, spiders wrapping their catch, a scarab beetle relentlessly pushing its ball of dung uphill, endless lines of caterpillars, an underwater spider creating an air bubble to live in, and a mosquito hatching.
Europe‘s Largest Desert 
Europe‘s Largest Desert 07 Jul 2016
Europe‘s Largest Desert
Near the cold Pyrenees of Iberia, surrounded by ancient and dark green forests, lies a strange land where the rain is scarce and the wind is always blowing. The soil is poor, there are no trees and the landscape resembles the moon. Is this what the future of desertification will look like? Incredible creatures with surprising behavior live in this strange landscape. The documentary explores a place with very dry skin but a wet hidden heart where even waterfowl or amphibians can live. Living in such conditions is not easy and only the toughest animals will survive.
Fireball: Visitors from Darker Worlds 
Fireball: Visitors from Darker Worlds 10 Sep 2020
Fireball: Visitors from Darker Worlds
This remarkable journey across our planet and universe explores how meteorites, shooting stars, and deep impacts have awoken our wonder about other realms—and make us rethink our destinies.