I have a question for grossano. What method or equipment do you use to measure the time skaters are in the air to hundredths of seconds?
I asked a simple question if you believe Mao is only 9.6 inches off the ice. Presume away.
I have no idea how high Mao is off the ice and wouldn't presume to say without making the measurement myself. Is 9.6 inches wrong? I will find out for myself in Vancouver. BoP seems to know for sure, but I don't. I don't possess his highly calibrated knees, nor his ability to exactly measure angles and distances by eyeball only.
The fastest scratch spin in the Guinness World Record is 308 rpm, which is 5.2rev per second. Do you think Mao Asada, as mighty as she is, is capable of spinning faster than the current world record?.
^ Are you able to get definitive results about underrotations?
That is another interesting question. Can a skater spin faster in the air, after a powerful launch, than on the ice? It seems like she should be able to.
good luck finding a TV with true 240Hz. let alone 300Hz frame refresh.Then, for precise measurements I use high resolution, high speed machine vision cameras with frame rates up to 300 frames per second. With a calibrated frame rate and knowing the takeoff frame and landing frame I get the time in the air to about 5 msec.
But I ain't gonna say what Mao may or may not have done on the day she got measured for the study, or in the competition that may have been studied. For all we know these numbers are based on a couple of jumps on a bad day that have nothing to do with how she jumps most of the time.
good luck finding a TV with true 240Hz. let alone 300Hz frame refresh.
Oh wait, CES is in a few days, maybe you'll be lucky afterall.
You appear to believe a couple of jumps on a bad day Mao did 7.7 rev per sec. On a good day, she probably can drill the ice in Vancouver and emerge, leg first, in Antartica.
Also, it is important to take careful note of Ikegami's statement and the interpretation of the journalist.
........
It is the journalist who then adds commentary:
回転数の多いジャンプには (1)高く跳んで滞空時間を稼ぐ走り高跳びタイプと、 (2)助走速度を上げて速く回転する走り幅跳びタイプ、に分かれるという。単純計算で、浅田が1回転に要する時間は0秒17と (2)のタイプとして、ほぼ完成形に達している。
translation:
It is said that jumps of many rotations can be divided into (1) the type jumped by those who procure air duration by jumping high into the air, and (2) the type jumped by those who increase run-up speed into the jump and thus are able to rotate quickly in the air. In simple calculation, Asada takes 0.17 second per rotation and thus can be considered type (2) jumper, and this is how she has perfected her technique.
http://www.youtube.com/watch?v=F9hKjSou73Y
They picked the fastest segment, and it looks a lot faster than Mao Asada's revolution on air.
It is extremely unlikely that a serious researcher, a professor of biometrics at a prestigious university, would measure these parameters incorrectly.
I downloaded the 2009 WTT video that was referenced above. Deffinately a recent competition, I pulled the video into Kinovea (A free version of dartfish) Using the time line in Kinovea I can see that Mao is in the air for 0.73 sec.
Yasuo Ikegami just for fun.
now if you google him, it should be 2nd.