Recent content by hamilton333

My inquiry is exactly what you're saying. I want to know in this example if theorically the ball must be drawn outwards. Thanks again

My inquiry is exactly what you're saying. I want to know in this example if theorically the ball must be drawn outwards. Thanks again

Hello, I think I’ve not been understood yet. (Sorry for my English) So, I’ll try it again: We have a blow dryer vertically. When it’s working, we throw inside the air stream a ping pong ball vertically and up at the same velocity that air stream has. In ping pong ball’s frame of reference the...

A great video, Jeff! Quite interesting the toilet paper tube. You say the fly would get pushed out because of its shape. Then, forget the fly. You think you throw a ping pong ball at the same velocity that the air stream. So, I repeat my question: will the ball detect inside the stream a small...

Then, do you think the fly moving in the air stream wouldn’t be pushed outside the tube, would it? You tell me as well the pressure doesn’t depend on the frame of reference. So, why don’t we choose a frame of reference that moves to a constant velocity which is the same to the stream’s one? I’m...

Hello. I’ve found in the forum this thread that had the same question I’d thought. https://www.physicsforums.com/showthread.php?t=143593 But there were too much things involved in it. I would like to know if Bernoulli’s principle effects change if the Observer velocity changes. For instance...

Thanks for your quick answer. Then, Bernoulli principle doesn't have anything to do with this phenomenon, does it? Regards

Is Bernoulli principle the cause of suction truck?? Hello! I’d like to know this question: When a truck walks to a high speed we see how the road tree leaves are dragged behind it. I would like to know the real cause of this problem. I think the air viscosity makes the truck drag a thin...

Hello, I would like to know if Pascal really made the experiment of the barrel. I have looked for in his treaties(traitez de liqueurs) but I have not seen any reference to the barrel. Somebody knows if Pascal speaks somewhere of the barrel? I tried to make the experiment with a tube of 10m...

Yes.I think the same.Maybe,the Pascal's barrel was less stronger.In Google I have not found the document of any person who has made it.Either in texts of Pascal.Somebody has seen it? Sorry for my English from Spain Alberto

Hello, I would like to know if Pascal really made the experiment of the barrel. I have looked for in his treaties(traitez de liqueurs) but I have not seen any reference to the barrel. Somebody knows if Pascal speaks somewhere of the barrel? I tried to make the experiment with a tube of 10m...