deliberate than just releasing a balloon into the wind. and meanwhile, a satellite up in space is not seen as such a problem. but balloons are in a kind of grey area in between and harder to spot. they also pose particular challenges to the military in working out how to take them down. i suspect there s probably a desire to find a way to deflate any potential future ambitions for using these things on a larger scale. excuse the horrible pun. professorjustin bronk is the senior research fellow for air power and technology in the military sciences team at rusi, a think tank. justin, how does the military deal with balloons? i mean, how do theyjudge whether they re a threat or not? it s a difficult one. so, in terms of dealing with them, first of all. there s the immediate question of what altitude so, in terms of dealing with them, first of all, there s the immediate question of what altitude are they at and what speed are they drifting at, because the primary means for militaries t
we have something called the quick reaction alert force, which involves typhoon planes which are kept on 24/7 readiness to police our airspace, which is incredibly important. so what are the challenges in dealing with these balloons? we re going to bring back our graphic for this part. flying a spy plane lower in the atmosphere would be seen as an aggressive act and much more deliberate than just releasing a balloon into the wind. and meanwhile, a satellite up in space is not seen as such a problem. but balloons are in a kind of grey area in between and harder to spot. they also pose particular challenges to the military in working out how to take them down. i suspect there s probably a desire to find a way to deflate any potential future ambitions for using these things on a larger scale, excuse the horrible pun. professorjustin bronk is the senior research fellow for air power and technology in the military sciences team at rusi, a think tank.
of the atmosphere and bury it in the deep ocean, which kind of tempers the march of global warming. and in those rivers and lakes in particular, millions of them we will see for the first time. water is such an important resource. many countries around the world have no idea precisely how much water is flowing through the rivers, how much is held in their lakes, and this mission will help them do that. and is there any kind of timeframe on when we ll be able to get to evaluate any results? well, they ll need to set satellite up, first of all, and this is a role that british scientists will play in particular. they ve got to use the bristol channel, this estuary in the west of the country, which has one of the largest tidal ranges in the world. it s a great sweeping water that comes up and down that estuary every day, and as the satellite flows over the top, they will be making measurements in the bristol channel. they ll want to see that both
out the wave into those photons. this is exciting. this telescope is going to produce pictures. will these photographs be discern ibl when we look at them or is it like an x-ray only a doctor will be able to understand? you know, you make a really good point there. astronomers are good at using what we call false color to make light invisible to human eyes look like something we would expect. we have x-ray telescopes, gamma ray telescopes, infrared, radio, all of these invisible to our eye but we make these beautiful images. here is the other thing that webb is going to do. we have a satellite up right now called test. it is finding planets around all the nearest stars. but it can t tell you whether there is life on those stars. that requires webb s instrument
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