and it is a matter of physics, between the weight of the aircraft, the temperature on the ground at the moment and the length of the runway, you factor all that in and you get what s known as the rotation speed and the run speed and that tells you whether you ll be able to take off on that runway. it s a simple question of mathematics. they ve done the math and they can do it. the ntsb is investigating. i can give a pretty good guess. okay, hit me. all right, they weren t using an instrument landing system, they were on a visual approach into the airport. they saw the airport that they thought it was, as chad s diagram shows, the run ways are about 20 degrees different. it s sizable, but not huge, they see what they think is the right runway, they head in that direction and they never look down at the instruments to check
right now attempting to make sure that the epa can not regulate ammunition. it failed last year. house gop is trying again this year. patti ann? patti ann: shannon bream, live in washington. thank you. jon: a fox news alert. going to take you down to baltimore now and the team that performed the first double arm transplant on an iraq war soldier, a veteran who lost two arms and two legs in an ied explosion. let s listen in. this is complicated arm transplant before. on the right side, as the diagram shows, we did an above-elbow transplant by connecting the bone muscles, blood vessel, nerves and skin between the donor and recipient. on his left side, in order to preserve the elbow joint, we transplanted the entire donor forearm muscles over his remaining tissues. then rerouted the nerves to the new muscles.
rain of fire. more than a dozen bombs fall on tripoli as nato launches a massive air strike on moammar gadhafi s compound. look at this trail of destruction. the search for survivors after a deadly tornado flattens a town in the u.s. midwest. it s an unpredictable situation. changing by the hour. british authorities are saying, watch this space as a voluntarily cannish ice cloud from iceland creeps further south toward the uk and main land europe. uk s official weather service told cnn the plume of ash will spread into all of british air space within the next 24 hours. thousands of people are waiting to see if their travel plans are going to be disrupted. dozens of flights to and from airports in scotland are canceled. one airline is challenging advice not to fly. irish carrier ryan air says restrictions are totally unnecessary. most airlines will review the situation around 1 p.m. gmt. let s go to emily ruben. what s the latest information you re getting? well, as you
irish carrier ryan air says restrictions are totally unnecessary. most airlines will review the situation around 1 p.m. gmt. let s go to emily ruben. what s the latest information you re getting? well, as you ve just said, the ash is spreading. the focus has been on scotland, northern ireland and northern england but it won t be long before the whole of the uk is covered. euro control, who monitor european air space, say 252 flights have been canceled so far. what s different this time to last time is that they graded the different densities of ash. the areas now most at risk are scotland, northern ireland and parts of northern england. let s take a look at how the cloud has spread. this is may 22nd, date of the volcano erupting over iceland. by the following day, it spread pretty much over green land down over the uk and across parts of russia. the latest diagram shows from the may shows the ash cloud has