In Our Time Returns for a New Series

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0:30most valuable asset, your people. Start building the stronger safety culture today at bcsp.org. This is Matt Rogers from Las Culturistas with Matt Rogers and Bowen Yang. This is Bowen Yang from Las Culturistas with Matt Rogers and Bowen Yang. And now a break from our sponsor, Vital Proteins, the official collagen partner of the U.S. Open who is upping the excitement at this year's U.S. Open. If a main draw singles match reaches a final set tiebreak beginning in the quarterfinals, fans could win. Thousands of randomly selected entrance may receive vital proteins, collagen peptides, and two people winning grand prizes, including the ultimate 2027 U.S.

1:05Open experience, which is two finals tickets, a helicopter ride, flights, hotel, and cash, while another receives the ultimate wellness investment worth$15 ,000 for long-term support. Enter the final set tiebreak sweepstakes August 17th at vitalproteins.com slash final dash set dash tiebreak. Seaside for official rules. Thanks again to our sponsor, vital proteins. I love a brighter smile. What I don't love is that little wince when I take a sip of something cold or even breathe in cold air. You know that feeling. It takes your breath away. That's ouch. Eek. That's why I like Sensodyne Clinical White.

1:40Its triple action formula whitens, polishes, and helps protect against sensitivity. Plus, it protects against new stains for up to six months. So I can keep enjoying my iced coffee and everything else I love without the sensitivity. Wider teeth without the wince. Try Sensodyne Clinical White today. It often starts with a question. What were Lyons doing in York in the third century? Was he always interested in maths? Why was Jeremy a lonely snail? Then we search for answers. This is one of the big mysteries in the history of life on Earth. In a way, it's one of the big problems in all of biology.

2:18In Our Time is a world-class seminar every week, exploring the ideas, people and events that have shaped our world. It's a novel where nothing happens and everything happens. If I was going to define mathematics, I would say it's the study of structure. It's one of the first times really that you consistently see someone painting teeth. I know that sounds bonkers. Empires, movements and discoveries whose influence remain as relevant as ever. Each week, myself and three guests discuss a single subject. What is interesting to note, Bisha? So the fundamental innovation here was to try to mathematically calculate human behaviour.

2:59From cybernetics and Handel's Messiah to Dadaism and the depths of the Mariana Trench. That's about 98 times the height of St Paul's Cathedral. As I was doing the research for the programme, my jaw just dropped further and further down. Our conversations range from wars and revolutions to the issues that define our existence. For one of the fathers of liberalism, there wasn't too much liberty in evidence at home, was there? There certainly wasn't. Episodes are released twice a week. On Mondays, we revisit one of more than a thousand In Our Time episodes in our archive. And every Thursday, myself and my guests tackle a brand new subject.

3:40What fascinates me about The Tree of Life, When you look at it, it's how close we are to slime molds. Listen to In Our Time first on BBC Sounds or wherever you get your BBC podcasts. Tea or coffee? Love a cup of tea. I'll have tea too. Tea for me, please. Thank you very much.

4:03Lives Less Ordinary is bringing you a special series of extraordinary love stories from all around the world. In India, love at first sight feels more psychotic than arranged marriage. Love stories that break all the rules. We came into our relationship with a lot of complicated pieces. Stories that show that sometimes love is all you need. Lives Less Ordinary love stories from the BBC World Service. Listen now. Search for Lives Less Ordinary wherever you get your BBC podcasts.