wales. it looks pretty messy for the weekend with some longer, heavier spells of rain and then sunday or monday, look what happens there. we start to pick up a northerly wind and temperatures plunge right the way across the uk. spring has not properly set up shop yet. you have been warned, thank you, susan. and that s bbc news at ten on tuesday the 18th of april. there s more analysis of the days main stories on newsnight with victoria derbyshire, which is just getting underway on bbc two. the news continues here on bbc one, as now its time to join our colleagues across the nations and regions for the news where you are but from the ten team, it s goodnight. the police investigation into snp finances widens. another arrest on the day the new first minister hoped to set out his stall to scotland. is the snp now in freefall and, if it is, what, or who, can stop it? can humza yousaf the snp continuity candidate distance himself from the previous sturgeon regime, when he wa
photovoltaics, and that s because of the size, weight and power advantages. there are some really crazy things going on there, some really interesting things. so at the moment, people are doing a lot of research in how to transmit power back from space to the earth safely. and once those issues are solved, you can imagine compound semiconductor, large scale photovoltaics in space, power stations in space, really very exciting. now, the newport wafer fab doesn t at the moment actually produce these cutting edge compound semiconductors that they re experimenting on in cardiff. but the government seems to think the nexperia takeover could mean valuable technological knowhow in this area being extracted from the wider welsh cluster and sent to china, or that attempts to develop it here could be stymied because of the chinese presence at newport. compound semiconductor technologies could have security and defence applications, and some insist there are valid national security reasons to blo