A Brief History of Time, the best-selling book written by the renowned theoretical physicist Prof Stephen Hawking, was published in March 1988.
In this programme first broadcast in 2018, Louise Hidalgo talks about physics, existence and the universe that made the book so popular.
The editor who published it, Peter Guzzardi, is her guest.
(Picture: Prof Stephen Hawking. Credit: Getty Images)
The first photo sent from a phone
On 11 June 1997, French software engineer Philippe Kahn shared the first ever photo from a mobile phone.
It was of his newborn daughter, Sophie.
He created a prototype of a camera phone by connecting his digital camera to his flip phone and his laptop.
He speaks to Rachel Naylor.
(Photo: Baby Sophie. Credit: Philippe Kahn)
Godfather of manicures
In November 1975, Vietnamese Navy commander Minh Nguyen, left behind his macho military life and retrained as a manicurist. He migrated from Vietnam to the United States during the fall of Saigon.
He went on to open a beauty school in Little Saigon, California and encouraged thousands of Vietnamese refugees to become nail technicians. Today, more than 40,000 students have graduated from Minh’s beauty schools and they have helped establish Vietnamese-Americans as the mainstay of the nail salon industry.
Minh’s wife Kien talks to Anoushka Mutanda-Dougherty.
(Photo: Minh Nguyen. Credit: Minh Nguyen)
How Bengaluru became India’s Silicon Valley
The city of Bengaluru in southern India, previously called Bangalore, is renowned for its huge technology companies and buzzy start-up culture.
But, 50 years ago it was a technological backwater.
Entrepreneurs like Narayana Murthy, the founder of Infosys, which is one of India’s biggest tech companies, were right at the heart of the city’s remarkable transformation into India’s Silicon Valley. He tells his story to Ben Henderson.
(Photo: Narayana Murthy and Infosys colleagues in 2004. Credit: INDRANIL MUKHERJEE/AFP via Getty Images)
The windmill that revolutionised wind power
In 1978, with energy prices rocketing due to the oil crisis, a group of volunteers in Denmark took matters into their own hands and built a wind turbine to power the town's school.
They called it Tvindkraft and its design revolutionised the wind industry.
Rachel Naylor speaks to Britta Jensen, a teacher from the school, who worked on the turbine.
(Photo: Tvindkraft. Credit: Tvindkraft)