feature of these plants is they are pressurised water reactor types but essentially you have a steel pressure vessel with the walls around 20 centimetres thick steel, and that keeps the reactor core in one place. then outside of that, you have a bio shield which is a thick concrete shield. these two features, safety features for the reactor, they keep the reactor and the radioactivity car means they are protected from the outside which is fortuitous in this circumstance. qm. fortuitous in this circumstance. ok, professor tom fortuitous in this circumstance. 0k, professor tom scott, it has been really interesting to get your insight. thank you so much for talking to us. ukraine s second city, kharkiv, near the russian border remains under siege. thousands of people have taken refuge in the city s metro station, living in train carriages and frightened to go above ground. 0ur eastern europe correspondent sarah rainsford is there.
in the streets of kharkiv, they have been abandoned by the majority of those who live here. half 1 million, fleeing the city. their prized possessions, in a bank. their cars, discarded at the station. says those who remain, hide in the shadows, in the dark, in the deep underground. in a dozen metro stations, they ve been turned to shelters. the battered looking train carriages were redeployed, as home. how long have you been living here? three weeks. how do you feel about it? when we hear something blow up, we were here, but now we go, what was that? oh, just shooting. the experience is a trial for a new mother, named natalia. she gave birth to her son two days after the invasion began. the hospital, then sent her
live here. it was having to flee the city, and their prized possessions in the bank. their cars, discarded at the station. they were remaining in the shadows, in the dark, in the deep underground. more than a dozen metro stations, and has turned into shelters and, these battered looking train carriages, re-deployed as home. three weeks. how do you feel about it? when you hear something blow up, we are arriving here, but now we go, what was that? oh, just shooting. the experience is a trial. for a new mother, named metallica. she gave birth to her son, two days after the invasion began. the hospital, then center here.
those who remain hide in the shadows in the dark, or the deep underground. more than a dozen metro stations have been turned into shelters. these battered looking train carriages redeployed as home. how long have you been living here? three weeks. how do you feel about it? when we hear something blow up, we re around here, down here, what was that, oh, shooting. the experience is a trial. for a new mother natalia. she gave birth to her son two days after the invasion began. the hospital then sent her here . . they now live in the final car on platform 2. with a cot and clothes provided
those who remain hide in the shadows, in the dark, or the deep underground. more than a dozen metro stations have been turned into shelters. these battered-looking train carriages redeployed as homes. how long have you been living here? three weeks. reporter: how do you feel about it? when we hear something blow up, we re here. what was that? oh, shooting. reporter: the experience is a trial for a new mother. he gave birth to her son two days after the invasion began. the hospital then sent her here. [ speaking foreign language ] reporter: they now live in the final car on platform two