The invention of the white LED lightbulb

The invention of the white LED lightbulb

In 1993, a literal lightbulb moment led to the invention of the first white light emitting diode (LED).

These LEDs are now used to light up everything from our streets to our homes to this screen you’re looking at.

Along with two other Japanese engineers, Professor Shuji Nakamura, was behind this illuminating invention.

But Shuji’s journey to this point is one of resilience and perseverance. In his pursuit to discover the first commercial white LED, he had to overcome many obstacles along the way.

With less funding than his counterparts and one of the only inventors without a PhD degree, Shuji stood out from the crowd.

He set out to get his PhD degree and found one of the most sought-after inventions along the way.

Professor Shuji Nakamura speaks to Natasha Fernandes about finding the light and how it might not be what you would expect.

Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more.

Recent episodes explore everything from football in Brazil, the history of the ‘Indian Titanic’ and the invention of air fryers, to Public Enemy’s Fight The Power, subway art and the political crisis in Georgia. We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: visionary architect Antoni Gaudi and the design of the Sagrada Familia; Michael Jordan and his bespoke Nike trainers; Princess Diana at the Taj Mahal; and Görel Hanser, manager of legendary Swedish pop band Abba on the influence they’ve had on the music industry. You can learn all about fascinating and surprising stories, such as the time an Iraqi journalist hurled his shoes at the President of the United States in protest of America’s occupation of Iraq; the creation of the Hollywood commercial that changed advertising forever; and the ascent of the first Aboriginal MP.

(Photo: Shuji Nakamura speaks during a news conference with LED lights on display. Credit: Kevork Djansezian via Getty Images)

Avsnitt(2000)

When Stalin silenced Shostakovich

When Stalin silenced Shostakovich

Russian composer Dmitri Shostakovich was one of the greatest musicians of the 20th century. But in 1936, Joseph Stalin attended a performance of Shostakovich's opera, Lady Macbeth of Mtsensk. The Soviet leader was unimpressed and left early. Days later, the state newspaper Pravda published a scathing review titled 'Muddle instead of music', castigating the music as bourgeois. Shostakovich was blacklisted from public life, and feared for his safety during Stalin's ongoing purges. The traditional style of his comeback Symphony No 5 in 1937 was a hit with the authorities, and Shostakovich's reputation was restored. But his true intentions are hugely debated – some experts argue the Fifth Symphony was a cleverly veiled act of dissent. Fifty years on from the composer's death, his son Maxim Shostakovich unfolds the mystery with Ben Henderson.Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more. Recent episodes explore everything from the death of Adolf Hitler, the first spacewalk and the making of the movie Jaws, to celebrity tortoise Lonesome George, the Kobe earthquake and the invention of superglue. We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: Eva Peron – Argentina’s Evita; President Ronald Reagan and his famous ‘tear down this wall’ speech; Thomas Keneally on why he wrote Schindler’s List; and Jacques Derrida, France’s ‘rock star’ philosopher. You can learn all about fascinating and surprising stories, such as the civil rights swimming protest; the disastrous D-Day rehearsal; and the death of one of the world’s oldest languages.(Photo: Dmitri Shostakovich and his son Maxim Shostakovich. Credit: Express/Getty Images)

5 Aug 10min

Nagasaki bomb

Nagasaki bomb

On 9 August 1945, the United States dropped an atomic bomb on Nagasaki, Japan, killing at least 74,000 people. It led to the end of World War Two in Asia, with Japan surrendering to the Allies six days later. The Nagasaki bomb, alongside the Hiroshima bomb on 6 August, remain the only times nuclear weapons have been used in a war.In an interview he gave to the BBC in 1980, British prisoner of war Geoff Sherring describes how he survived the explosion. Produced and presented by Rachel Naylor. This programme was made in collaboration with BBC Archives. Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more. Recent episodes explore everything from the death of Adolf Hitler, the first spacewalk and the making of the movie Jaws, to celebrity tortoise Lonesome George, the Kobe earthquake and the invention of superglue. We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: Eva Peron – Argentina’s Evita; President Ronald Reagan and his famous ‘tear down this wall’ speech; Thomas Keneally on why he wrote Schindler’s List; and Jacques Derrida, France’s ‘rock star’ philosopher. You can learn all about fascinating and surprising stories, such as the civil rights swimming protest; the disastrous D-Day rehearsal; and the death of one of the world’s oldest languages.(Photo: The Nagasaki bomb on 9 August 1945. Credit: Universal History Archive/Universal Images Group/Getty Images)

4 Aug 10min

Trailer. 13 Minutes Presents: The Space Shuttle

Trailer. 13 Minutes Presents: The Space Shuttle

The epic space story of a sci-fi dream that changed spaceflight forever. Told by the Nasa astronauts and team who made it happen. Our multi-award-winning podcast is back, hosted by space scientist Maggie Aderin-Pocock. She tells the story of triumph and tragedy - of a dream that revolutionised modern space travel forever.You can listen to the trailer here. To hear episodes, search for 13 Minutes Presents: The Space Shuttle, wherever you get your BBC podcasts. 13 Minutes Presents: The Space Shuttle is a BBC Audio Science Unit production for the BBC World Service. Theme music by Hans Zimmer and Christian Lundberg, and produced by Russell Emanuel, for Bleeding Fingers Music. Archive: Mission audio and oral histories, Nasa History Office.

3 Aug 3min

Japan's record-breaking rollercoaster

Japan's record-breaking rollercoaster

On 1 August 2000, a new rollercoaster opened to the public at a theme park in Japan.Named Steel Dragon 2000, it's located at the Nagashima Spa Land amusement park in Kuwana.When it first opened, it broke world records, being named the longest rollercoaster in the world, at just under 2.5km long.Kurt Brookes hears from its designer, Steve Okamoto. A Made In Manchester production. Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more. Recent episodes explore everything from the death of Adolf Hitler, the first spacewalk and the making of the movie Jaws, to celebrity tortoise Lonesome George, the Kobe earthquake and the invention of superglue. We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: Eva Peron – Argentina’s Evita; President Ronald Reagan and his famous ‘tear down this wall’ speech; Thomas Keneally on why he wrote Schindler’s List; and Jacques Derrida, France’s ‘rock star’ philosopher. You can learn all about fascinating and surprising stories, such as the civil rights swimming protest; the disastrous D-Day rehearsal; and the death of one of the world’s oldest languages.(Photo: Steel Dragon 2000. Credit: Getty Images)

1 Aug 9min

Chuquicamata: Chile's abandoned mining town

Chuquicamata: Chile's abandoned mining town

By 2007, the 25,000 residents of a Chilean mining town had moved out of their homes due to concerns about pollution levels from one of the largest copper mines in the world.Today, the ghost town of Chuquicamata, located in the Atacama Desert, lies empty.But once a year, the former residents return to celebrate the life they once had there with a weekend of partying, during which they sing happy birthday to the town.Patricia Rojas revisits and reflects on her 25 years living in this now-deserted desert town with Robin Markwell. Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more. Recent episodes explore everything from the death of Adolf Hitler, the first spacewalk and the making of the movie Jaws, to celebrity tortoise Lonesome George, the Kobe earthquake and the invention of superglue. We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: Eva Peron – Argentina’s Evita; President Ronald Reagan and his famous ‘tear down this wall’ speech; Thomas Keneally on why he wrote Schindler’s List; and Jacques Derrida, France’s ‘rock star’ philosopher. You can learn all about fascinating and surprising stories, such as the civil rights swimming protest; the disastrous D-Day rehearsal; and the death of one of the world’s oldest languages.(Photo: Chuquicamata. Credit: BBC)

31 Juli 10min

Cleveland Balloonfest '86

Cleveland Balloonfest '86

In 1986, a world record attempt was launched by the city of Cleveland, in the US. One and a half million balloons were blown up by volunteers ready to be released into the sky, with thousands of people watching. It was meant to be a dazzling publicity stunt, but due to strong winds and a cold front, the balloons didn't float away as expected.Colm Flynn speaks to Tom Holowatch, who was the project manager of BalloonFest '86, about how this became one of the most memorable days in the history of Cleveland, for all the right, and wrong reasons. Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more. Recent episodes explore everything from the death of Adolf Hitler, the first spacewalk and the making of the movie Jaws, to celebrity tortoise Lonesome George, the Kobe earthquake and the invention of superglue. We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: Eva Peron – Argentina’s Evita; President Ronald Reagan and his famous ‘tear down this wall’ speech; Thomas Keneally on why he wrote Schindler’s List; and Jacques Derrida, France’s ‘rock star’ philosopher. You can learn all about fascinating and surprising stories, such as the civil rights swimming protest; the disastrous D-Day rehearsal; and the death of one of the world’s oldest languages.(Photo: BalloonFest. Credit: Getty Images)

30 Juli 9min

Eta’s assassination of Juan Mari Jáuregui

Eta’s assassination of Juan Mari Jáuregui

On 29 July 2000, retired Spanish politician Juan Mari Jáuregui was assassinated by Basque separatists Eta. Deemed a terrorist organisation by the European Union, Eta killed more than 800 people between 1968 and 2010. Its goal was to create an independent Basque state out of territory in south-west France and northern Spain. Following Jáuregui’s murder, his widow Maixabel Lasa worked to help victims of political violence and highlight their suffering, weakening Eta’s support. A decade later, she received a message from one of the men involved in Jáuregui’s murder. He wanted to meet her and take responsibility for his actions, beginning a remarkable friendship.In 2011, Eta declared a permanent ceasefire, and formally disbanded in 2018. Maixabel Lasa speaks to Ben Henderson.Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more. Recent episodes explore everything from the death of Adolf Hitler, the first spacewalk and the making of the movie Jaws, to celebrity tortoise Lonesome George, the Kobe earthquake and the invention of superglue. We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: Eva Peron – Argentina’s Evita; President Ronald Reagan and his famous ‘tear down this wall’ speech; Thomas Keneally on why he wrote Schindler’s List; and Jacques Derrida, France’s ‘rock star’ philosopher. You can learn all about fascinating and surprising stories, such as the civil rights swimming protest; the disastrous D-Day rehearsal; and the death of one of the world’s oldest languages.(Photo: Maixabel Lasa. Credit: Arnaitz Rubio/Europa Press via Getty Images)

29 Juli 10min

The Russian revolutionaries nearly stranded in London

The Russian revolutionaries nearly stranded in London

In 1907, the men who would go on to lead the Russian Revolution met in London for a crucial congress.But the revolutionaries – including Vladimir Lenin, Joseph Stalin, and Leon Trotsky – were nearly stranded after running out of funds.The late British journalist Henry Brailsford played a key role in securing their fare home.In 1947, he told the BBC how the meeting marked a point of no return for the party’s two warring factions – the Bolsheviks and the Mensheviks – and ultimately led to the creation of the communist party.Produced and presented by Vicky Farncombe. Eye-witness accounts brought to life by archive. Witness History is for those fascinated by the past. We take you to the events that have shaped our world through the eyes of the people who were there. For nine minutes every day, we take you back in time and all over the world, to examine wars, coups, scientific discoveries, cultural moments and much more. Recent episodes explore everything from football in Brazil, the history of the ‘Indian Titanic’ and the invention of air fryers, to Public Enemy’s Fight The Power, subway art and the political crisis in Georgia. We look at the lives of some of the most famous leaders, artists, scientists and personalities in history, including: visionary architect Antoni Gaudi and the design of the Sagrada Familia; Michael Jordan and his bespoke Nike trainers; Princess Diana at the Taj Mahal; and Görel Hanser, manager of legendary Swedish pop band Abba on the influence they’ve had on the music industry. You can learn all about fascinating and surprising stories, such as the time an Iraqi journalist hurled his shoes at the President of the United States in protest of America’s occupation of Iraq; the creation of the Hollywood commercial that changed advertising forever; and the ascent of the first Aboriginal MP.(Photo: A group of revolutionaries including Bolshevik leader Vladimir Lenin (centre) and Menshevik leader Julius Martov (on his right). Credit: Getty Images)

28 Juli 10min

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