supreme leader ayatollah khamenei says no one should here think they can turn over the islamic republic. crowds have once again filled the streets where dozens of people were reportedly killed by security forces. now on bbc news, click. this week, we are celebrating 100 years of the bbc in 23 minutes. 100 years of the bbc in 23 minutes- 100 years of the bbc in 23 minutes. ~ ., ., ~ ., minutes. we will look at the secret behind minutes. we will look at the secret behind the minutes. we will look at the i secret behind the broadcasting technologies that changed the world. b, technologies that changed the world. ., ., ., world. a radio legend talks about legendary world. a radio legend talks about legendary radio. - world. a radio legend talks about legendary radio. i. world. a radio legend talks i about legendary radio. i used to set my about legendary radio. i used to set my watch about legendary radio. i used to set my watch by about legendary radio. i used to
overturn the islamic republic, as anti government protests enter a fifth week. crowds have again filled the streets of zahedan, the city where dozens of people were reportedly killed by the security forces. it s 3:30, good morning. coming up shortly we will bring you news watch. now on bbc news click. today we are literally stepping into history. we are at alexandra palace. that s the studio and there. 2022 months 100 years of the bbc. what began with a single radio transmission has transformed into a global broadcaster. it has been working to inform, educate and entertain the nation. and throughout those hundred years the bbc has been pushing the boundaries of broadcasting, embracing and sometimes even creating the latest technology. 100 years of broadcasting. it is amazing when you think of it. you don t look a day over 30. and the studio and alexandra palace has a very special place in bbc history. in 1936, the bbc television service was launched right here on this spot. t
ordinary watch which used to probably lose a minute a day or something like that so i used to set my watch by the pips stopping nowadays because with the smart watches and things like that you don t it quite so much but it is still very bbc and i still like it, i wouldn t want to see it disappear stopping off we go to the next one and what a lovely sound this is as well. this is as well. the original clock that this is as well. the original clock that kept this is as well. the original clock that kept the - this is as well. the original clock that kept the time i this is as well. the original. clock that kept the time still is that in the museum at the royal observatory. in the 60s, though, anatomic clock started doing thejob which though, anatomic clock started doing the job which stayed in use until the 1990s when it transmitted at last pips from the royal observatory. ever since then, the bbc has generated its own pips from its atomic clock buried deep inside broadcasting house
in the 60s, though, anatomic clock started doing the job which stayed in use until the 1990s when it transmitted at last pips from the royal 0bservatory. ever since then, the bbc has generated its own pips from its atomic clock buried deep inside broadcasting house which uses gps signals to stay synchronised. so the next time you hear these, you know that they come from this. pips meanwhile at manchester s science and industry museum, 100 years of the bbc is being celebrated with an exhibit featuring broadcast artefacts, plus a few more recent additions. this funky looking box was a prototype which was an early part of the bbc s research and development project for storing your data yourself, so the idea was that the device would keep track of what you are listening to and watching, but that data was just yours, unless you chose for it not to be. it was inspired by a new vision that