Chronology Current Month Current Thread Current Date
[Year List] [Month List (current year)] [Date Index] [Thread Index] [Thread Prev] [Thread Next] [Date Prev] [Date Next]

Re: [Phys-l] Entrainment of oil in Hurricane?



A hurricane is a complex assembly of thunderstorms. Its energy comes from condensation of water vapor evaporating from a warm ocean.

A tornado is a portion of a strong thundersorm where a strong wind shear occurs - kind of like what happens when you place a pencil between your palms and run them back and forth. The updraft of the thunderstorm tilts the rotating air (pencil) into a vertical column and a tornado may result.

Bob at PC


________________________________________
From: phys-l-bounces@carnot.physics.buffalo.edu [phys-l-bounces@carnot.physics.buffalo.edu] On Behalf Of Bernard Cleyet [bernardcleyet@redshift.com]
Sent: Friday, June 25, 2010 7:03 PM
To: Forum for Physics Educators
Subject: Re: [Phys-l] Entrainment of oil in Hurricane?

Is not a tornado a miniature or very compact hurricane? Both of their eyes are low p.

bc


On 2010, Jun 25, , at 15:39, John Clement wrote:

But tornados also have high pressure which creates huge wind velocities. So
while suction (removal of pressure forces) will not do, air resistance can
work quite well to elevate cows to great heights, and water is even easier
when dispersed into droplets.

There is even a well known case of a whole occupied house going aloft along
with an old lady on a bicycle ;}

John M. Clement
Houston, TX


Ah yes, I thought this might be the unspoken concern. It's a physics
thing - that water cannot be pumped up more than 33 feet in a suction
pump. The engineer's way of suction-pumping water up more than twice
that Torricellian limit, is by adjusting the water-density that the pump
has to deal with.


_______________________________________________
Forum for Physics Educators
Phys-l@carnot.physics.buffalo.edu
https://carnot.physics.buffalo.edu/mailman/listinfo/phys-l


_______________________________________________
Forum for Physics Educators
Phys-l@carnot.physics.buffalo.edu
https://carnot.physics.buffalo.edu/mailman/listinfo/phys-l