This week Tech Tent is presented by Joe Tidy, who's been to El Salvador - which has bought thousands of bitcoins and become the first country in the world to make it legal tender. Now prices are crashing so will its experiment end in failure? Bitcoin podcast host Natalie Brunell and finacnail commentator Frances Coppola give their thoughts. Also: entrepreneurs at London tech week on their hopes and fears for the future. A Facebook moderator tells Chris Vallance of the strain of screening graphic content from the Ukraine war. And Liv McMahon pays the tech team's respects to Internet Explorer, put out to pasture after 27 years in which it transformed home computing.

Is El Salvador's bitcoin revolution failing?

Tech Life discovers and explains the ways technology is changing our lives, wherever we are in the world. We meet the people with bright ideas for rethinking the way we work, learn and play, and get hands-on with the products they dream up. We hold tech giants to account for their huge power to affect our lives, and ask who wins, and who loses, in the technology transformation. Tech Life is your guide to a future being made, and remade, at lightning speed in front of our eyes.

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Ahead of the Paris Olympics, Alasdair Keane hears how the organisation behind the event is enlisting an AI platform to tackle online abuse aimed at athletes competing in the event. Also in this episode Shiona McCallum meets the next generation of game designers and we find out about a project in Rwanda to improve the fit of prosthetic limbs. Image: Paris 2024 Olympic Games logo is displayed near the Eiffel Tower (Photo by Chesnot/Getty Images)

Tackling online abuse of athletes

Blood tests are part of the process of receiving cancer treatment. But they can be time-consuming and require visits to hospital. A new blood test machine is changing this. The Liberty is a small device that allows patients to take blood tests and upload the results from home without supervision. Lynn Thompson took part in the trial, and she tells Tech Life it's made a huge difference to her life. Also this week, we answer a listener's question about smart glasses. We learn about a project, involving electrolysers and hydrogen cooking stoves, which could improve the health of villagers in rural Nepal. And cutting down on e-waste - we speak to Tech for Troops. Presenter: Shiona McCallum
Producer: Tom Quinn (Photo: A still photo of Lynn Thompson with the Liberty blood test device. Credit: BBC)

Help for cancer patients

Customs officers looking for illegally traded elephant ivory face a challenge, because ivory taken from the remains of mammoths is legal. Telling the two apart isn't easy. Now researchers have come up with a new technique using lasers that promises to make ivory identification easier. We speak to two experts involved in the project. Also on Tech Life this week, "The chatbot will see you now". People are more willing to discuss personal health matters with artificial intelligence than real medics. Hear about a community-based solution to the problem of e-waste. And how do you detect crumbling concrete in buildings ? Shiona McCallum reports on a tech solution. Presenter: Chris Vallance
Producer: Tom Quinn (Photo: An illustration of a woolly mammoth. Credit: Leonello Calvetti/Science Photo Library/Getty Images)

The mammoth ivory problem

This week we're taking a global look at TikTok, and some of the problems the video sharing platform has been facing. Also on Tech Life, you want to keep in touch with your child, but is there an alternative to giving them a smartphone ? We hear from video gamers in South Africa. And a female tech boss from Brazil shares advice on how others can follow her success. Presenter: Shiona McCallum
Producer: Tom Quinn (Photo: The TikTok logo on a mobile phone screen. Credit: Chesnot/Getty Images)

TikTok world

We're looking at humanoid robots - the ones that look like us. They have arms and legs. But are they really that practical and useful ? And how might they develop in the future ? Also in this edition of Tech Life, you've heard of charging points for electric cars and bikes ? Well, next it's plug-in points for cruise ships ! We learn about Bitcoin halving. And tech is helping farmers in Ghana to grow more crops. Presenter: Zoe Kleinman
Producer: Tom Quinn (Photo: An image of Atlas, the Boston Dynamics robot. Credit: Kiyoshi Ota/Bloomberg via Getty Images, and Tomohiro Ohsumi/Getty Images)

Is El Salvador's bitcoin revolution failing?

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