Is this an example of ground effects?
Support the Blog — Buy This Book!
For Kindle and with free ePub version. Only $9.49 Great reading.
Here is what Gary Shapiro CEO of the Consumer Electronics Association (CEA) said: Dvorak's writing sings with insight and clarity. Whether or not you agree with John's views, he will get you thinking and is never boring. These essays are worth the read!
Put this ad on your blog!
Syndicate
Subscribe to Main Blog feed here:
Subscribe to Comments too (below):
Junk Email Filter
If that clacking sound wasn’t edited in, maybe it’s just rolling along what looks like glass bricks. Cute trick. Is that guy a spare body parts clone of Bill Gates?
Looks like he’s putting a spin on it and it’s rolling on edge around the inner circumference of the achitectural feature.
If you want to experience ground effect with a frisbee you can. You can actually skip a frizbee off the ground without it actually touching the ground but it has to be a very acute angle at which you throw it at the ground.
TJGeezer – You’re exactly right. I had the sound set very low when I previewed the video and didn’t hear the clacking sound. With the audio turned up it’s pretty obvious.
It’s ‘Frisbee” not “Frisby” or “Frizbee”. I guess the latter is a German model. 🙂
#2, the skip is a very common throw, but it definitely does touch the ground; ground effect is not the reason.
Playing in a very large room with a flat floor one can see ground effect as the Frisbee will travel long distances just skimming the floor. A friend and I loved to play in the UofD Field House – at 400′ by 100’ with no obstructions. Playing catch at 100 yards is quite a workout.
[Thanks. – ed.]
#2 — I actually do that throw with a frisbee and I can assure you that the frisbee is spinning the wrong direction for it to be wheeling around the bricks. If he was a lefty then it’s possible. The frisbee is obviously skipping across the bricks. I’d like to find that building.
JCD, I think you’re mistaken. He’s doing a right-handed forward throw. That would cause the disc to rotate counter clockwise from above. That means it’s rolling on the wall, not skipping. When I used to play Ultimate, players would do this from time to time when playing in doors on the soccer field with curved end zone walls. Damned hard to catch, though.
#5, I think you better watch how he throws it again… a forehand throw. Now take a frisbee in your hand and mimic the same kind of throw. It is in fact spinning in the correct direction (counter-clockwise) for it to be rolling off the bricks as shown.
It is a flick, forehand, righty, and is turning in the correct orientation. It’ll do this along a flat surface too.
#4 I know what a ground skip is. That is not what I was describing and takes a much much more acute angle than that. instead about 10 to 15 degrees try 3 or 4 degrees or less. It is possible with a very low speed and a lot of a luck. A head wind does help however.
NOT ground effect, just a simple toss. No big deal at all other than the bits wasted in recording it.
Did you read the other comments?