From rmccullo at hotmail.com  Wed Mar  2 14:46:00 2011
From: rmccullo at hotmail.com (Roy McCullough)
Date: Wed, 2 Mar 2011 14:46:00 -0500
Subject: [YAPA] March meeting, February notes
Message-ID: <BAY146-w39B21F43969D16E4B93061CAC00@phx.gbl>


Hi All,
 
A note to remind you that those who were at the earlier meetings agreed to move March?s meeting to Monday March 7 as usual at 7:00.  This meeting is at YSU Ward Beecher room 2016.  If you have anything of interest, please bring it to share.  For those who need a subject, let?s see if we can get charged up by current electricity.   As per last meeting, we will have materials available for those who wish to make a pop can van de Graaf.
 
What you missed:
 
At the February meeting, Roy McCullough showed a picture of the new storm on Saturn that he and Jodi had taken.  He also shared some electrostatics his students do with Styrofoam, a pie and a cheap electroscope.
 
Debbie Smith shared some of the ideas she has used in her classroom including work on buoyancy, in particular their efforts to find objects with neutral buoyancy.   She also shared a video her students had found about surfing on standing waves in a river.  The text below and website discuss and illustrate this? It lead to a lively discussion and a lead in to a fake video out there about someone using a waterslide to propel themselves into a small pool of water.
 
Rich Reigelman followed with an neat optics demo with a bright filament bulb in a box, first projecting positive images with ?pinholes? then eventually using a small sphere (#6 shot) to project a negative image of the filament (Babinet?s ball).
 
Richard Zitto shared a Chinese singing bowl that he challenged us to make sing?Eventually we got close.
 
Gregg Sturrus shared the fake video, with Jim Andrews providing information on how it was modified.  Gregg discussed Myth Busters attempts at doing a full table version of the table cloth trick, with various mechanisms that all failed.  He also shared the concern about needing sponsors for Physics Olympics events.   
 
Jim Andrews shared using zinc and high UV lights to discharge electroscopes, illustrating the photoelectric effect.
 
Mike Crescimanno shared demos he has done with the pop can van de Graaf including spark gaps, discharging through old camera flash, etc. 
 
 
 
 
Standing wave river surfing:
 
Happens a few times every year? a bunch of bored dudes dig out the sand where the river meets the shorepound at Waimea ? and presto! A fun afternoon of semi-surfing.
 
River Surfing is surfing on waves in rivers. The most common type of river surfing is on Standing Waves. Standing Waves do not change position. These waves are formed by the combination of fast moving water going over a drop or slope and the river bottom contours. The water goes down the slope or drop then comes back up to form the wave.

River Surfers face upstream and the surf boards ride on the face of the wave. To stay on the wave a River Surfer balances gravity pulling them down the face of the wave and the water pushing them downstream. The act of surfing on River Waves is very similar to surfing on Ocean Waves.

River Waves are everywhere! Any place with rivers can have waves. River Waves come in many different shapes and sizes from small mushy piles of white water to permanant barrels that can fit a standing surfer. Board sizes and shapes vary depending on the wave you ride.
 
When the surf is calm during the summer months and surfers are getting surfing fever, they might pray to the rain god.  The rain god might listen and deliver a promising deluge up in the Waimea Valley Mountains.  After the heavy rains, a huge mass of water from the Waimea River starts to form and needs an exit strategy.  Sometimes this is not so easy.  Sometimes the Waimea Bay beach acts as a natural barrier inhibiting the ?Red Water? flow.  When the natural dam can not take anymore pressure, it gives way to a wonderful natural standing wave.  This is where Bruce Irons and other aficionados take time away from their busy work schedules and let loose.
 
http://www.dailymotion.com/video/xgtvdp_surf-how-create-a-standing-wave-y_sport
 
 
Water flow for upstream surfing
 
http://www.youtube.com/watch?v=18BL7MKjtZM
 
http://www.youtube.com/watch?v=Bh5Cd72u6ys
  		 	   		  
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From Gary.Capone at Youngstown.k12.oh.us  Mon Mar  7 22:34:20 2011
From: Gary.Capone at Youngstown.k12.oh.us (Gary Capone)
Date: Mon, 7 Mar 2011 22:34:20 -0500
Subject: [YAPA] comic
Message-ID: <E0250A0F0CEB0748BC154CD2F1B7834301376F72D45F@DRIESSEN.access.local>


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From slshanks at ysu.edu  Mon Mar 21 11:13:16 2011
From: slshanks at ysu.edu (Sharon Shanks)
Date: Mon, 21 Mar 2011 11:13:16 -0400
Subject: [YAPA] Physics from NASA
Message-ID: <AANLkTi=E2aO_q7-_2Rb3r0GmTwLcqXAhc6TD5vvOMYO5@mail.gmail.com>

>From the most recent NASA Education Express message. I'd love to be
able to give you the url so you could sign up, but I can't find it. I
signed up before NASA redesigned its web site and made it unusable.

Sharon

Free Webcasts-- Physics Phundamentals

Join educators Rachel Power and Joshua Santora from NASA?s Kennedy
Space Center in Florida as they explore what happens when physics and
fun collide. Become a virtual member of the audience at Busch Gardens
Tampa during this full velocity Physics Phundamentals show, which is
offered exclusively to Physics Day students.

Each 30-minute show is designed to show students how physics is
something that is encountered constantly. Topics such as
action/reaction (Newton?s Second Law), combustion/propulsion,
kinetic/potential energy, states of matter/phase change, inelastic
collisions and sound waves will be covered in each show.

Four webcasts will take place on March 24, 2011. Shows will begin at
9:30 a.m. EDT, 10:30 a.m. EDT, 11:30 a.m. EDT, and 12:30 p.m. EDT.

For more information and to watch the webcasts, visit http://dln.nasa.gov/dln/.

Questions about the Physics Phundamentals webcasts should be e-mailed
to Rachel Power at Rachel.B.Power at nasa.gov.


From mail at arborsci.com  Thu Mar 24 13:00:00 2011
From: mail at arborsci.com (Arbor Scientific)
Date: Thu, 24 Mar 2011 13:00:00 -0400
Subject: [YAPA] Coolstuff Newsletter: Duke University students walk on water
Message-ID: <LYRIS-112638951-38664126-2011.03.24-13.00.15--YAPA#lists.ysu.edu@lists.arborsci.com>

Having trouble viewing this email? View the web version
<http://cts.arborsci.com/t/38664126/112638951/92203/0/>

Duke students find a way to walk on water
 Well, not quite. 

The students of Duke University filled a pool with a mix of cornstarch
and water to create a non-Newtonian fluid known as "oobleck". When
stress is applied to the liquid it exhibits properties of a solid. Watch
as they walk, run and jump on this amazing fluid and see the interesting effects
produced when oobleck is disturbed at certain frequencies! 

<http://cts.arborsci.com/t/38664126/112638951/92631/0/
& utm_medium=email & utm_content=video%2Bimg%2Blink &
utm_campaign=coolstuff49video> 

Check Out These New Cool Tools! 

See the inner workings of a mini Van de Graaff with the new Fun-Fly-Stick! 

A full kit with several extra accessories and a manual full of
experiments. Click on the below link to learn more. 
<http://cts.arborsci.com/t/38664126/112638951/92632/0/
& utm_medium=email & utm_content=fly%2Blink &
utm_campaign=coolstuff49video> 

Shoot big, beautiful, stable smoke rings across the largest room. 

The Smoke Ring Cannons ability to produce slow smoke rings can easily
show how vortex rings form. Click on below link to learn more.

<http://cts.arborsci.com/t/38664126/112638951/92633/0/
& utm_medium=email & utm_content=smk%2Blink &
utm_campaign=coolstuff49video> 


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