people really excited hydrogen. hydrogen fuel cells combine hydrogen and oxygen to create a flow of electrons around a circuit to power a motor. and as we all know, hydrogen plus oxygen equals h20. the problem is. we can t do much about the fundamental properties of hydrogen. volumetrically, we need to compress it to get sort of in the ballpark of not quite a third of the efficiency of fuels that we use. that means that we need often very large, very heavy tanks, because they need very thick walls to deal with the incredibly high pressures we need them at. what you end up with is an aeroplane that can t have any passengers in. this is the challenge faced by zeroavia, one of several companies working to make hydrogen powered flight a reality. they retrofit existing planes with hydrogen engines. the company had several successful test flights with this plane last year.
shannon: time for one moret harold? the florida educator named teacher of the year for 2024 in seminole county. hodge celebrated with the iconic blue angels. hodge works instructional coast at bear lake elementary school sit in the back seat of f-18 super horton. set a goal to not passout or get sick during the flight. luckily for her and the pilot that was a test she passed with flying colors. tyrus: very sharp.
moscow s mayor says a drone has been shot down over the city this morning leaving falling debris near the expo center. no one was hurt. this is the third time in the past month that today bdebris h the area. and the u.s. has approved committing f-16 jets to ukraine as soon as training is complete. nada bashir is joining us from london. we talked about this yesterday. ukraine believes the jets still won t arrive until next year. so what can you tell us? reporter: look, danny, the supply of these f-16s really depends on the training of ukrainian pilots. these are advance u.s. made fighter jets and it could
welcome back to way too early. it s just before 5:30 a.m. on the east coast, 2:30 out west. i m jonathan lemire. thanks for being with us. the united states has approved the transfer of f-16 training materials to ukraine. it s the last step before an f-16 training program in den mark can get under way. once training is completed, the u.s. has said it will expedite approval for den mark and the netherlands to transfer some of their jets to the battlefield. since the f-16 is an american weapon, the u.s. must first approve any transfer. a spokesperson for ukraine s air force said earlier this week he does not expect the jets to arrive before the new year.
of one of the bloodiest civil wars in modern history. american-backed rebels controlled large parts of the country, islamic extremists from ices dominated the rest. and the dictator, al-assad, was barely clinging to power. president assad begged his old ally putin for help. the russian president was happy dissent warplanes to bomb assad s enemies. but he did not want to commit