Click to edit Master text styles
Second level
Third level
Fourth level
Fifth level
‹date/time›
‹foote=
r›
‹#R=
50;
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/master04.xml
Content-Transfer-Encoding: quoted-printable
Content-Type: text/xml; charset="utf-8"
Click to edit Master title style<=
/div>
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/pres.xml
Content-Transfer-Encoding: quoted-printable
Content-Type: text/xml; charset="utf-8"
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0001.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0053.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0057.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0058.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0059.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
Protection in Sports
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0061.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
![](3D"slide0061_image001.gif")
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0055.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0060.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0062.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0064.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
Click to edit Master subtitle sty=
le
‹date/time›
‹foote=
r›
‹#R=
50;
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/master05.xml
Content-Transfer-Encoding: quoted-printable
Content-Type: text/xml; charset="utf-8"
Prote=
ction
in Sports
By Kevin Kim
Introduction
n=
The
purpose of this webpage is to explain the physics behind collisions an=
d protective equipment in sports&#=
13;nIt is intended to be used as a presentation for high school students with th=
ree =
demonstrations to explain why ph=
ysics
is =
relevant
in sport
Demonstration #1 (part 1)
nInertia
nTake a 30cm x 15cm x 3cm metal b=
rick
(any =
metal
with a density >8)
nCarefully place the metal brick =
on top
of two =
regular
250mL styrofoam cups
=
nDrop a 500g weight onto the bric=
k from
1m =
high
nIt does not crush the cups
Demonstration #1 (part 2)
nInertia
nNow take a wood brick of the sam=
e dimensions
nPlace it on top of two new 250mL
styrofoam =
cups
=
nDrop the same 500g weight from t=
he
same =
height
of 1m
nIt will dent or crush the cups
Demonstration #1 (explained)
<=
span
style=3D'mso-special-format:nobullet;display:none;color:#5B8800;mso-color-=
index:
6;font-family:Wingdings;font-size:65%'>n The metal brick does not dent the styrofoam cups because it has a lot of mass while the wood brick does b=
ecause
it is
relatively light. Inertia te=
lls us
that a =
heavier
object resists changes in its state of motion better than a lighter object.
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0056.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Demonstration #2
nAccelerometer
=
nAn accelerometer is strapped ont=
o the
top of =
a toy
car
nCrash the toy car into a hard
surface
nNext, tape 1cm of soft foam onto=
the
toy car’s front bumper and crash the toy car into the same hard surface<=
/div>
Demonstration #2 (explained)
The accelerometer will show the =
force
of the =
collision
against time. The peak force=
will be higher on the car without foam
since =
the
time for the collision to stop is shorter =
due to the harder surface. Another =
interesting thing to note is the=
area
under =
both
graphs will be the same. Why=
? Because the momentum of the coll=
ision
is =
conserved.
Demonstration #3
n“Bed of
Nails”
nA 5 feet by 2.5 fe=
et
wood board is pierced with over two thousand 10cm long nails 1cm apart=
3;
nGently place a vol=
unteer
on top of the nails with the entire body making contact with the nails=
at
the same time
nWhen dismounting t=
he
nails, lift the entire volunteer at same time (do not sit on the nails!)&#=
13;
nThis demonstration=
is
excellent for explaining pressure
Demonstration #3 (explained)
<=
span
style=3D'mso-special-format:nobullet;display:none;color:#5B8800;mso-color-=
index:
6;font-family:Wingdings;font-size:65%'>nThe “bed of nails” does not injure the <=
span
style=3D'color:#827F4C;mso-color-index:3'>volunteer because the pressure o=
f the body is spread over many nails w=
hich increases the surface area. If you decrease the density of nails/ar=
ea,
this =
demonstration
becomes very dangerous. Use caution.
Mouthguards (the great myth)
n=
Mouthguards
have not been shown to prevent or reduce injury
=
nThey do a great job at reducing broken teeth by spreading the force of =
impact
over all teeth
evenly like the “bed of nails”
Protective Equipment
Protective equipment follow two basic principles:
Protection in Sports
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0020.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0022.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0023.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0024.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0052.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
![](3D"slide0052_image003.jpg")
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0065.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
Protection in Sports
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0067.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0044.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
![3D"Nucleus](3D"slide0044_image005.jpg")
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0045.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0054.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0029.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
The pressure of the football =
collision from slide 13 without =
a helmet is 2,400,000N/m2 !
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0032.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
The pressure of the football collision from slide 13 with a <=
/span>helmet is 200,000N/m2
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0040.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0042.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
![3D"Heads-Up](3D"slide0042_image007.jpg")
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0043.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0034.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
• Make the contact area as large as possible
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0035.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/master04_stylesheet.css
Content-Transfer-Encoding: base64
Content-Type: text/css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------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/script.js
Content-Transfer-Encoding: quoted-printable
Content-Type: application/javascript; charset="us-ascii"
function LoadSld()
{
var sld=3DGetObj("SlideObj")
if( !g_supportsPPTHTML ) { =09
sld.style.visibility=3D"visible"
return
}
if( MakeNotesVis() ) return
runAnimations =3D _InitAnimations();
=09
if( IsWin("PPTSld") )
parent.SldUpdated(GetSldId())
g_origSz=3DparseInt(SlideObj.style.fontSize)
g_origH=3Dsld.style.posHeight
g_origW=3Dsld.style.posWidth
g_scaleHyperlinks=3D(document.all.tags("AREA").length>0)
if( g_scaleHyperlinks )
InitHLinkArray()
if( g_scaleInFrame||(IsWin("PPTSld") && parent.IsFullScrMode() ) )
document.body.scroll=3D"no"
_RSW()
if( IsWin("PPTSld") && parent.IsFullScrMode() )
FullScrInit();
=09
MakeSldVis();
ChkAutoAdv()
if( runAnimations )
{
if( document.all("NSPlay") )
document.all("NSPlay").autoStart =3D false;
if( sld.filters && sld.filters.revealtrans )
setTimeout( "document.body.start()", sld.filters.revealtrans.duration * =
1000 );
else
document.body.start();
}
}
function MakeSldVis()=20
{
var fTrans=3Dg_showAnimation && SldHasTrans()
if( fTrans )=09
{
if( g_bgSound ) {
idx=3Dg_bgSound.indexOf(",");
pptSound.src=3Dg_bgSound.substr( 0, idx );
pptSound.loop=3D -(parseInt(g_bgSound.substr(idx+1)));
}
SlideObj.filters.revealtrans.Apply()=09
}
SlideObj.style.visibility=3D"visible"
if( fTrans )
SlideObj.filters.revealtrans.Play()
}
function MakeNotesVis()=20
{
if( !IsNts() ) return false=20
SlideObj.style.display=3D"none"
nObj =3D document.all.item("NotesObj")
parent.SetHasNts(0)
if( nObj ) {=20
nObj.style.display=3D""
parent.SetHasNts(1)
}
return 1
}
function ChkAutoAdv()
{
if(SldHasTrans())
SlideObj.onfilterchange=3DAutoAdv
else
AutoAdv()
}
function AutoAdv()
{
if(!IsWin("PPTSld") || !gUseSldTimings )return
var sld=3DGetCurSld()
if( (sld.mAdvDelay>0) && !parent.IsFramesMode() )
setTimeout("parent.GoToNextSld()",sld.mAdvDelay)
}
function GetObj(id)
{
if(g_supportsPPTHTML) return document.all(id);
else return document.getElementById(id);
}
function SldHasTrans() { return SlideObj.style.filter !=3D ""; }
function GetSldId() { return sId=3Dlocation.href.substring(location.href.la=
stIndexOf('/')+1) }
function HideMenu() { if( frames["PPTSld"] && PPTSld.document.all.item("ctx=
tmenu") && PPTSld.ctxtmenu.style.display!=3D"none" ) { PPTSld.ctxtmenu.styl=
e.display=3D'none'; return true } return false }
function IsWin( name ) { return window.name =3D=3D name }
function IsNts() { return IsWin("PPTNts") }
function IsSldOrNts() { return( IsWin("PPTSld")||IsWin("PPTNts") ) }
function SupportsPPTAnimation() { return( navigator.platform =3D=3D "Win32"=
&& navigator.appVersion.indexOf("Windows")>0 ) }
function SupportsPPTHTML()
{
var appVer=3Dnavigator.appVersion, msie=3DappVer.indexOf("MSIE "), ver=3D0
if( msie >=3D 0 )
ver=3DparseFloat( appVer.substring( msie+5, appVer.indexOf(";",msie) ) )
else
ver=3DparseInt(appVer)
return( ver >=3D 4 && msie >=3D 0 )
}
function _RSW()
{
if( !g_supportsPPTHTML || IsNts() ||
( !g_scaleInFrame && (!IsWin("PPTSld") || !parent.IsFullScrMode()) ) )
return
var padding=3D0;
if( IsWin("PPTSld") && parent.IsFramesMode() ) padding=3D6
cltWidth=3Ddocument.body.clientWidth-padding
cltHeight=3Ddocument.body.clientHeight-padding
factor=3D(1.0*cltWidth)/g_origW
if( cltHeight < g_origH*factor )
factor=3D(1.0*cltHeight)/g_origH
newSize =3D g_origSz * factor
if( newSize < 1 ) newSize=3D1
s=3DSlideObj.style
s.fontSize=3DnewSize+"px"
s.posWidth=3Dg_origW*factor
s.posHeight=3Dg_origH*factor
s.posLeft=3D(cltWidth-s.posWidth+padding)/2
s.posTop=3D(cltHeight-s.posHeight+padding)/2
if( g_scaleHyperlinks )
ScaleHyperlinks( factor )
}
function _InitAnimations()
{
animRuntimeInstalled =3D ''+document.body.localTime !=3D 'undefined';
isFullScreen =3D (window.name =3D=3D "PPTSld") && !parent.IsFramesMode();
g_animUseRuntime =3D g_showAnimation && animRuntimeInstalled && !(isFullSc=
reen && parent.IsSldVisited());
if( g_animUseRuntime ) {
collSeq =3D document.all.tags("seq");
if( collSeq !=3D null ) {
for(ii=3D0;ii numSlds )
gSldJumpIdx =3D numSlds;
if ( gSldJumpIdx >=3D 0 ) {
if ( gSldJumpIdx =3D=3D 0 )
gSldJumpIdx =3D 1;
var jumpTo =3D parseInt(gSldJumpIdx);
gSldJump =3D 0; gSldJumpIdx =3D "";
win.GoToSld( parent.GetSldList().mList[jumpTo-1].mSldHref )
}
}
}
function _KDH()
{
if( event.keyCode =3D=3D 8 ) {
event.returnValue =3D 0;
parent.GoToPrevSld();
}
}
function DocumentOnClick()
{
if( IsNts() || parent.HideMenu() ) return;
if( ( g_allowAdvOnClick && !parent.IsFramesMode() ) ||
(event && (event.keyCode=3D=3D32) ) )
parent.GoToNextSld();
}
var g_supportsPPTHTML =3D SupportsPPTHTML(), g_scaleInFrame =3D 1, gId=3D""=
, g_bgSound=3D"",
g_scaleHyperlinks =3D false, g_allowAdvOnClick =3D 1, g_showInBrowser =
=3D 0, gLoopCont =3D 0, gUseSldTimings =3D 1;
var g_showAnimation =3D g_supportsPPTHTML && SupportsPPTAnimation() && ( (w=
indow.name=3D=3D"PPTSld" && !parent.IsFramesMode()) || g_showInBrowser );va=
r g_animManager =3D null;
var g_animUseRuntime =3D false;
var g_animItemsToHide, g_animInteractiveItems, g_animSlideTime;
var g_animMainSequence =3D null;
var ENDSHOW_MESG=3D"End of slide show, click to exit.", SCREEN_MODE=3D"Fram=
es", gIsEndShow=3D0, NUM_VIS_SLDS=3D30, SCRIPT_HREF=3D"script.js", FULLSCR_=
HREF=3D"fullscreen.htm";
var gCurSld =3D gPrevSld =3D 1, g_offset =3D 0, gNtsOpen =3D gHasNts =3D gO=
tlTxtExp =3D 0, gHasNarration =3D 0, gOtlOpen =3D true
window.gPPTHTML=3DSupportsPPTHTML()
var gMainDoc=3Dnew Array(new hrefList("slide0001.htm",1,-1,1),new hrefList(=
"slide0053.htm",1,-1,1),new hrefList("slide0057.htm",1,-1,1),new hrefList("=
slide0058.htm",1,-1,1),new hrefList("slide0059.htm",1,-1,1),new hrefList("s=
lide0056.htm",1,-1,1),new hrefList("slide0061.htm",1,-1,1),new hrefList("sl=
ide0055.htm",1,-1,1),new hrefList("slide0060.htm",1,-1,1),new hrefList("sli=
de0062.htm",1,-1,1),new hrefList("slide0064.htm",1,-1,1),new hrefList("slid=
e0063.htm",1,-1,1),new hrefList("slide0020.htm",1,-1,1),new hrefList("slide=
0022.htm",1,-1,1),new hrefList("slide0023.htm",1,-1,1),new hrefList("slide0=
024.htm",1,-1,1),new hrefList("slide0052.htm",1,-1,1),new hrefList("slide00=
65.htm",1,-1,1),new hrefList("slide0066.htm",1,-1,1),new hrefList("slide006=
7.htm",1,-1,1),new hrefList("slide0044.htm",1,-1,1),new hrefList("slide0045=
.htm",1,-1,1),new hrefList("slide0054.htm",1,-1,1),new hrefList("slide0029.=
htm",1,-1,1),new hrefList("slide0032.htm",1,-1,1),new hrefList("slide0040.h=
tm",1,-1,1),new hrefList("slide0042.htm",1,-1,1),new hrefList("slide0043.ht=
m",1,-1,1),new hrefList("slide0034.htm",1,-1,1),new hrefList("slide0035.htm=
",1,-1,1));
/*********************************************
Frameset functions
These functions control slide navigation
and state of the frameset.
**********************************************/
function FullScrInit()
{
g_allowAdvOnClick =3D GetCurSld().mAdvOnClk
document.body.style.backgroundColor=3D"black"
document.oncontextmenu=3Dparent._CM;
document.onkeydown =3D _KDH;
document.ondragstart=3DCancel
document.onselectstart=3DCancel
self.focus()
}
function Redirect( frmId )
{=09
var str=3Ddocument.location.hash,idx=3Dstr.indexOf('#'), sId=3DGetSldId()
if(idx>=3D0) str=3Dstr.substr(1);
if( window.name !=3D frmId && ( sId !=3D str) ) {
obj =3D GetObj("Main-File")
window.location.href=3Dobj.href+"#"+sId
return 1
}
return 0
}
var MHTMLPrefix =3D CalculateMHTMLPrefix();=20
function CalculateMHTMLPrefix()
{
if ( document.location.protocol =3D=3D 'mhtml:') {=20
href=3Dnew String(document.location.href)=20
Start=3Dhref.indexOf('!')+1=20
End=3Dhref.lastIndexOf('/')+1=20
if (End < Start)=20
return href.substring(0, Start)=20
else=20
return href.substring(0, End)=20
}
return '';
}
function GetTags(base,tag)
{
if(g_supportsPPTHTML) return base.all.tags(tag);
else return base.getElementsByTagName(tag);
}
function UpdNtsPane(){ if(frames["PPTNts"]) PPTNts.location.replace( MHTMLP=
refix+GetHrefObj( gCurSld ).mNtsHref ) }
function UpdNavPane( sldIndex ){ if(gNavLoaded) PPTNav.UpdNav() }
function UpdOtNavPane(){ if(gOtlNavLoaded) PPTOtlNav.UpdOtlNav() }
function UpdOtlPane(){ if(gOtlLoaded) PPTOtl.UpdOtl() }
function SetHasNts( fVal )
{
if( gHasNts !=3D fVal ) {
gHasNts=3DfVal
UpdNavPane()
}
}
function ToggleOtlText()
{
gOtlTxtExp=3D!gOtlTxtExp
UpdOtlPane()
}
function ClearMedia()
{
// Clear any sounds playing before launching another browser window. Other=
wise,
// in fullscreen mode, you'll continue to hear the sound in the frames mod=
e.
if (PPTSld.pptSound) PPTSld.pptSound.loop =3D 0;
}
function FullScreen()
{=20
if ( PPTSld.g_animUseRuntime )
PPTSld.document.body.pause();
ClearMedia();
var href =3D ( document.location.protocol =3D=3D 'mhtml:') ? FULLSCR_HREF =
: FULLSCR_HREF+"#"+GetHrefObj(gCurSld).mSldHref;
if(PPTNav.event.ctrlKey) {
var w =3D (window.screen.availWidth * 1.0) / 2.0
var h =3D w * (PPTSld.g_origH * 1.0) / PPTSld.g_origW
win =3D window.open( MHTMLPrefix+href,null,"toolbar=3D0,resizable=3D1,top=
=3D0,left=3D0," + "width=3D"+ w + ",height=3D" + h );
if( win.document.body && PPTSld.g_animUseRuntime )
win.document.body.PPTSldFrameset=3Dwindow;
}
else
{
win =3D window.open( MHTMLPrefix+href,null,"fullscreen=3Dyes" );
if( win.document.body && PPTSld.g_animUseRuntime )
win.document.body.PPTSldFrameset=3Dwindow;
}
}
function ToggleVNarration()
{
rObj=3DPPTSld.document.all("NSPlay")
if( rObj && !PPTSld.g_animUseRuntime ) {
if( (rObj.playState =3D=3D 1)||(rObj.playState =3D=3D 0) )
rObj.Play()
else if( rObj.playState =3D=3D 2 )
rObj.Pause()
else
return;
}
else if( PPTSld.g_animUseRuntime )
{
narObj =3D PPTSld.document.all("narrationID")
if( narObj )
narObj.togglePause()
}
}
function GetCurSldNum()
{ =20
obj=3DGetHrefObj(gCurSld)
if( obj.mOrigVis =3D=3D 1 )
return obj.mSldIdx
else =20
return gCurSld
}
function GetNumSlds()
{ =20
if( GetHrefObj(gCurSld).mOrigVis =3D=3D 1 )
return GetSldList().mNumVisSlds;
else
return GetSldList().mList.length
}
function GetSldNum( href )
{
for(ii=3D0; ii 1 )
PopSldList();
else if( !IsFramesMode() ) {
if( gLoopCont )
GoToFirst()
else
EndShow()
}
}
function GoToPrevSld()
{
ii=3DgCurSld-1
if( ii > 0 ) {
obj=3DGetHrefObj(ii)
while ( obj && ( obj.mVis =3D=3D 0 ) && ( ii>0 ) )
obj=3DGetHrefObj(--ii)
if( ii =3D=3D 0 ) ii=3D1
GoToSldNum(ii)
}
}
function GoToFirst(){ GoToSld( GetHrefObj(1).mSldHref ) }
function GoToLast()
{
ii=3DGetSldList().mList.length
if( ii !=3D gCurSld )
GoToSld( GetHrefObj(ii).mSldHref )
}
function GoToSldNum( num )
{
if( PPTSld.event ) PPTSld.event.cancelBubble=3Dtrue
obj =3D GetHrefObj( num )
obj.mVis=3D1
gPrevSld=3DgCurSld
gCurSld =3D num;
PPTSld.location.replace(MHTMLPrefix+obj.mSldHref)
if( IsFramesMode() ) {
UpdNavPane(); UpdOtlPane(); UpdNtsPane()
}
}
function GoToSld( href )
{
if( PPTSld.event ) PPTSld.event.cancelBubble=3Dtrue
GetHrefObj( GetSldNum(href) ).mVis=3D1
PPTSld.location.replace(MHTMLPrefix+href)
}
function SldUpdated( id )
{
if( id =3D=3D GetHrefObj(gCurSld).mSldHref ) return
gPrevSld=3DgCurSld
gCurSld=3DGetSldNum(id)
if( IsFramesMode() ) {
UpdNavPane(); UpdOtlPane(); UpdNtsPane()
}
}
function PrevSldViewed(){ GoToSld( GetHrefObj(gPrevSld).mSldHref ) }
function HasPrevSld() { return ( gIsEndShow || ( gCurSld !=3D 1 && GetHrefO=
bj( gCurSld-1 ).mVis =3D=3D 1 )||( GetCurSldNum() > 1 ) ) }
function HasNextSld() { return (GetCurSldNum() !=3D GetNumSlds()) }
function CloseWindow() {
if( HideMenu() ) return;
=09
var event =3D PPTSld.event;
if( !IsFramesMode() && event && (event.keyCode=3D=3D27 || event.keyCode=3D=
=3D32 || event.type=3D=3D"click" ) )
window.close( self );
CatchNumKeys( self, event );
}
function Unload() { gIsEndShow=3D0; }
function SetupEndShow() {
gIsEndShow=3D1;
PPTSld.document.body.scroll=3D"no";
PPTSld.document.onkeypress=3DCloseWindow;
PPTSld.document.onclick=3DCloseWindow;
PPTSld.document.oncontextmenu=3D_CM;
}
function EndShow()
{
if( IsFramesMode() ) return
if( PPTSld.event ) PPTSld.event.cancelBubble=3Dtrue
doc=3DPPTSld.document
var dir =3D doc.body.dir
if( dir !=3D "rtl" ) dir =3D "ltr";
doc.open()
doc.writeln(' 0) {
PushSldList(sldList,fEnd);
gCurSld =3D 1;
}
else
if( PPTSld.event ) PPTSld.event.cancelBubble=3Dtrue
}
function PushSldList(arr,fEnd) {
var ii =3D gSldStack.length;
gSldStack[ii] =3D new SldList(arr,gCurSld,fEnd);
GoToSld( gSldStack[ii].mList[0].mSldHref );
}
function PopSldList() {
if (gSldStack[gSldStack.length-1].fEndShow)
EndShow()
else {
gCurSld =3D gSldStack[gSldStack.length-1].mCurSld;
gSldStack[gSldStack.length-1] =3D null;
gSldStack.length--;
var sldList =3D gSldStack[gSldStack.length-1];
GoToSld( sldList.mList[gCurSld - 1].mSldHref );
}
}
var custShowList=3Dnew Array();
/*********************************************
Navigation button implementation
There are 2 types of buttons: ImgBtn, TxtBtn
implemented as function objects. They share
a similiar interface so the event handlers
can call SetActive, for example, on a button=20
object without needing to know exactly=20
what type of button it is.
**********************************************/
//----------------------------------
function ImgBtn( oId,bId,w,action )
//----------------------------------
{
var t=3Dthis
t.Perform =3D _IBP
t.SetActive =3D _IBSetA
t.SetInactive=3D _IBSetI
t.SetPressed =3D _IBSetP
t.SetDisabled=3D _IBSetD
t.Enabled =3D _IBSetE
t.ChangeIcon =3D null
t.UserAction =3D action
t.ChgState =3D _IBUI
t.mObjId =3D oId
t.mBorderId=3D bId
t.mWidth =3D w
t.mIsOn =3D t.mCurState =3D 0
}
function _IBSetA()
{
if( this.mIsOn ) {
obj=3Dthis.ChgState( gHiliteClr,gShadowClr,2 )
obj.style.posTop=3D0
}
}
function _IBSetI()
{
if( this.mIsOn ) {
obj=3Dthis.ChgState( gFaceClr,gFaceClr,1 )
obj.style.posTop=3D0=20
}
}
function _IBSetP()
{
if( this.mIsOn ) {
obj=3Dthis.ChgState( gShadowClr,gHiliteClr,2 )
obj.style.posLeft+=3D1; obj.style.posTop+=3D1
}
}
function _IBSetD()
{ =20
obj=3Dthis.ChgState( gFaceClr,gFaceClr,0 )
obj.style.posTop=3D0=20
}
function _IBSetE( state )
{
var t=3Dthis
GetObj( t.mBorderId ).style.visibility=3D"visible"
if( state !=3D t.mIsOn ) {
t.mIsOn=3Dstate
if( state )
t.SetInactive()
else
t.SetDisabled()
}
}
function _IBP()
{
var t=3Dthis
if( t.mIsOn ) {
if( t.UserAction !=3D null )
t.UserAction()
if( t.ChangeIcon ) {
obj=3DGetObj(t.mObjId)
if( t.ChangeIcon() )
obj.style.posLeft=3Dobj.style.posLeft+(t.mCurState-4)*t.mWidth
else
obj.style.posLeft=3Dobj.style.posLeft+(t.mCurState-0)*t.mWidth
}
t.SetActive()
} =20
}
function _IBUI( clr1,clr2,nextState )
{
var t=3Dthis
SetBorder( GetObj( t.mBorderId ),clr1,clr2 )
obj=3DGetObj( t.mObjId )
obj.style.posLeft=3Dobj.style.posLeft+(t.mCurState-nextState)*t.mWidth-obj=
.style.posTop
t.mCurState=3DnextState
return obj
}
//-----------------------------------------
function TxtBtn( oId,oeId,action,chkState )
//-----------------------------------------
{
var t=3Dthis
t.Perform =3D _TBP
t.SetActive =3D _TBSetA
t.SetInactive=3D _TBSetI
t.SetPressed =3D _TBSetP
t.SetDisabled=3D _TBSetD
t.SetEnabled =3D _TBSetE
t.GetState =3D chkState
t.UserAction =3D action
t.ChgState =3D _TBUI
t.mObjId =3D oId
t.m_elementsId=3D oeId
t.mIsOn =3D 1
}
function _TBSetA()
{
var t=3Dthis
if( t.mIsOn && !t.GetState() )
t.ChgState( gHiliteClr,gShadowClr,0,0 )
}
function _TBSetI()
{
var t=3Dthis
if( t.mIsOn && !t.GetState() )
t.ChgState( gFaceClr,gFaceClr,0,0 )
}
function _TBSetP()
{
if( this.mIsOn )
this.ChgState( gShadowClr,gHiliteClr,1,1 )
}
function _TBSetD()
{ =20
this.ChgState( gFaceClr,gFaceClr,0,0 )
this.mIsOn =3D 0
}
function _TBSetE()
{
var t=3Dthis
if( !t.GetState() )
t.ChgState( gFaceClr,gFaceClr,0,0 )
else
t.ChgState( gShadowClr,gHiliteClr,1,1 )
t.mIsOn =3D 1
}
function _TBP()
{
var t=3Dthis
if( t.mIsOn ) {=20
if( t.UserAction !=3D null )
t.UserAction()
if( !t.GetState )
return
if( t.GetState() )
t.SetPressed()
else
t.SetActive()
} =20
}
function _TBUI( clr1,clr2,lOffset,tOffset )
{
SetBorder( GetObj( this.mObjId ),clr1,clr2 )
Offset( GetObj( this.m_elementsId ),lOffset,tOffset )
}
function Offset( obj, top, left ){ obj.style.top=3Dtop; obj.style.left=3Dle=
ft }
function SetBorder( obj, upperLeft, lowerRight )
{
s=3Dobj.style;
s.borderStyle =3D "solid"
s.borderWidth =3D 1=20
s.borderLeftColor =3D s.borderTopColor =3D upperLeft
s.borderBottomColor=3D s.borderRightColor =3D lowerRight
}
function GetBtnObj(){ return gBtnArr[window.event.srcElement.id] }
function BtnOnOver(){ b=3DGetBtnObj(); if( b !=3D null ) b.SetActive() }
function BtnOnDown(){ b=3DGetBtnObj(); if( b !=3D null ) b.SetPressed() }
function BtnOnOut(){ b=3DGetBtnObj(); if( b !=3D null ) b.SetInactive() }
function BtnOnUp()
{
b=3DGetBtnObj()
if( b !=3D null )
b.Perform()
else
Upd()
}
function GetNtsState(){ return parent.gNtsOpen }
function GetOtlState(){ return parent.gOtlOpen }
function GetOtlTxtState(){ return parent.gOtlTxtExp }
function NtsBtnSetFlag( fVal )
{
s=3Ddocument.all.item( this.m_flagId ).style
s.display=3D"none"
if( fVal )
s.display=3D""
else
s.display=3D"none"
}
function _BSetA_Border(){ b =3D gBtnArr[this.mObjId]; if( b !=3D null ) b.S=
etActive() }
function _BSetI_Border(){ b =3D gBtnArr[this.mObjId]; if( b !=3D null ) b.S=
etInactive() }
function _BSetP_Border(){ b =3D gBtnArr[this.mObjId]; if( b !=3D null ) b.S=
etPressed() }
function _BSetA_BorderImg()
{=20
b =3D gBtnArr[this.mBorderId]=20
if( b !=3D null && this.mIsOn && !b.GetState() ) {
obj=3Dthis.ChgState( gHiliteClr,gShadowClr,2 )
obj.style.posTop=3D0
}
}
function _BSetI_BorderImg()
{=20
b =3D gBtnArr[this.mBorderId]
if( b !=3D null && this.mIsOn && !b.GetState() ) {
obj=3Dthis.ChgState( gFaceClr,gFaceClr,1 )
obj.style.posTop=3D0
}
}
var gHiliteClr=3D"THREEDHIGHLIGHT",gShadowClr=3D"THREEDSHADOW",gFaceClr=3D"=
THREEDFACE"
var gBtnArr =3D new Array()
gBtnArr["nb_otl"] =3D new TxtBtn( "nb_otl","nb_otlElem",parent.ToggleOtlPan=
e,GetOtlState )
gBtnArr["nb_otlElem"] =3D new TxtBtn( "nb_otl","nb_otlElem",parent.ToggleOt=
lPane,GetOtlState )
gBtnArr["nb_nts"] =3D new ImgBtn( "nb_nts","nb_ntsBorder",10,parent.ToggleN=
tsPane )
gBtnArr["nb_nts"].SetActive =3D _BSetA_BorderImg;
gBtnArr["nb_nts"].SetInactive =3D _BSetI_BorderImg;
gBtnArr["nb_ntsBorder"] =3D new TxtBtn( "nb_ntsBorder","nb_ntsElem",parent.=
ToggleNtsPane,GetNtsState )
gBtnArr["nb_ntsElem"] =3D new TxtBtn( "nb_ntsBorder","nb_ntsElem",parent.To=
ggleNtsPane,GetNtsState )
gBtnArr["nb_prevBorder"] =3D gBtnArr["nb_prev"]=3D new ImgBtn( "nb_prev","n=
b_prevBorder",30,parent.GoToPrevSld )
gBtnArr["nb_nextBorder"] =3D gBtnArr["nb_next"]=3D new ImgBtn( "nb_next","n=
b_nextBorder",30,parent.GoToNextSld )
gBtnArr["nb_sldshw"]=3D new ImgBtn( "nb_sldshw","nb_sldshwBorder",18,parent=
.FullScreen )
gBtnArr["nb_sldshwBorder"] =3D new TxtBtn( "nb_sldshw","nb_sldshwBorder",pa=
rent.FullScreen,null )
gBtnArr["nb_sldshwBorder"].SetActive =3D _BSetA_Border;
gBtnArr["nb_sldshwBorder"].SetInactive =3D _BSetI_Border;
gBtnArr["nb_sldshwText"] =3D new TxtBtn( "nb_sldshw","nb_sldshwText",parent=
.FullScreen,null )
gBtnArr["nb_sldshwText"].SetActive =3D _BSetA_Border;
gBtnArr["nb_sldshwText"].SetInactive =3D _BSetI_Border;
gBtnArr["nb_voice"] =3D gBtnArr["nb_voiceBorder"] =3D new ImgBtn( "nb_voice=
","nb_voiceBorder",18,parent.ToggleVNarration )
gBtnArr["nb_otlTxtBorder"] =3D gBtnArr["nb_otlTxt"]=3D new ImgBtn( "nb_otlT=
xt","nb_otlTxtBorder",23,parent.ToggleOtlText )
gBtnArr["nb_ntsBorder"].m_flagId=3D "nb_nts"
gBtnArr["nb_ntsBorder"].SetFlag =3D NtsBtnSetFlag
gBtnArr["nb_otlTxt"].ChangeIcon=3D GetOtlTxtState
/*********************************************
Context menu implementation
_CM() is the function that's hooked up to
the oncontextmenu event. Once we're asked to
show the menu, we first build it by creating
DIVs on-the-fly. Then we position it=20
within the screen area so it doesn't get
clipped.
Creating the DIVs using createElement() means
we don't have to write out any extra HTML
into the slide HTML files.
**********************************************/
var sNext=3D"Next",sPrev=3D"Previous",sEnd=3D"End Show",sFont=3D"Arial",sAr=
row=3D"Arrow",sFreeform=3D"Freeform",sRect=3D"Rectangle",sOval=3D"Oval"
function ShowMenu()
{
BuildMenu();
var doc=3DPPTSld.document.body,x=3DPPTSld.event.clientX+doc.scrollLeft,y=
=3DPPTSld.event.clientY+doc.scrollTop
m =3D PPTSld.document.all.item("ctxtmenu")
m.style.pixelLeft=3Dx
if( (x+m.scrollWidth > doc.clientWidth)&&(x-m.scrollWidth > 0) )
m.style.pixelLeft=3Dx-m.scrollWidth
m.style.pixelTop=3Dy
if( (y+m.scrollHeight > doc.clientHeight)&&(y-m.scrollHeight > 0) )
m.style.pixelTop=3Dy-m.scrollHeight
m.style.display=3D""
}
function _CM()
{
if( !parent.IsFullScrMode() ) return;
if(!PPTSld.event.ctrlKey) {
ShowMenu()
return false
} else
HideMenu()
}
function BuildMenu()
{
if( PPTSld.document.all.item("ctxtmenu") ) return
var mObj=3DCreateItem( PPTSld.document.body )
mObj.id=3D"ctxtmenu"
mObj.style.visibility=3D"hidden"
var s=3DmObj.style
s.position=3D"absolute"
s.cursor=3D"default"
s.width=3D"120px"
SetCMBorder(mObj,"menu","black")
var iObj=3DCreateItem( mObj )
SetCMBorder( iObj, "threedhighlight","threedshadow" )
iObj.style.padding=3D2
CreateMenuItem( iObj,sNext,M_GoNextSld,M_True )
CreateMenuItem( iObj,sPrev,M_GoPrevSld,M_HasPrevSld )
=09
CreateSeparator( iObj )
CreateMenuItem( iObj,sEnd,M_End,M_True )
mObj.style.visibility=3D"visible"
}
function Cancel() { window.event.cancelBubble=3Dtrue; window.event.returnVa=
lue=3Dfalse }
function Highlight() { ChangeClr("activecaption","threedhighlight") }
function Deselect() { ChangeClr("threedface","menutext") }
function Perform()
{
e=3DPPTSld.event.srcElement
if( e.type=3D=3D"menuitem" && e.IsActive() )
e.Action()
else
PPTSld.event.cancelBubble=3Dtrue
}
function ChangeClr( bg,clr )
{
e=3DPPTSld.event.srcElement
if( e.type=3D=3D"menuitem" && e.IsActive() ) {
e.style.backgroundColor=3Dbg
e.style.color=3Dclr
}
}
function M_HasPrevSld() { return( parent.HasPrevSld() ) }
function M_GoNextSld() { if( gIsEndShow ) M_End(); else GoToNextSld() }
function M_GoPrevSld() { if( gIsEndShow ) { gIsEndShow=3D0; history.back();=
PPTSld.event.cancelBubble=3Dtrue; } else GoToPrevSld() }
function M_True() { return true }
function M_End() { window.close( self ) }
function CreateMenuItem( node,text,action,eval )
{
var e=3DCreateItem( node )
e.type=3D"menuitem"
e.Action=3Daction
e.IsActive=3Deval
e.innerHTML=3Dtext
if( !e.IsActive() )
e.style.color=3D"threedshadow"
e.onclick=3DPerform
e.onmouseover=3DHighlight
e.onmouseout=3DDeselect
s=3De.style;
s.fontFamily=3DsFont
s.fontSize=3D"9pt"
s.paddingLeft=3D2
}
function CreateSeparator( node )
{
var sObj=3DCreateItem( node )
SetCMBorder(sObj,"menu","menu")
var s=3DsObj.style
s.borderTopColor=3D"threedshadow"
s.borderBottomColor=3D"threedhighlight"
s.height=3D1
s.fontSize=3D"0px"
}
function CreateItem( node )
{
var elem=3DPPTSld.document.createElement("DIV")
node.insertBefore( elem )
return elem
}
function SetCMBorder( o,ltClr,rbClr )
{
var s=3Do.style
s.backgroundColor=3D"menu"
s.borderStyle=3D"solid"
s.borderWidth=3D1
s.borderColor=3DltClr+" "+rbClr+" "+rbClr+" "+ltClr
}
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/fullscreen.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Protection in Sports
------=_NextPart_01C77D18.53352F30--
1. M=
aximize
stopping time
<=
span
style=3D'color:#827F4C;mso-color-index:3'>ØThis reduced the force of the
impact
2. M=
aximize
the surface area
ØThis reduces the pressure on any
one area of the body
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0063.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Helmets
=
n
=
n
nA hockey helm=
et
lengthens the stopping time by using padding and spreads the force over a large area with a s=
olid exterior shell reducing the pres=
sure
Football Example
The average football player weighs approximately =
;
=
120kg
(264lbs) =
; &n=
bsp;
=
and
some can run as fast as 10m/s!
A Football Tackle
The average tackle in football can stop a player from 10m/s to 0m/s=
in 0.2s
(according to Dr. Tim Gay)
Acceleration during a Footb=
all Tackle
Since F =3D m a
=
=
The acceleration fel=
t by
the =
running
back is (10/0.2) m/s2 <=
span
style=3D'position:absolute;top:70.75%;left:15.91%;width:68.16%;height:7.5%=
'>or 50 m/s2Force of a Football Tackle
That’s 5g’s
or
F =3D 120kg x 50m/s2 =
;
=
F =3D 6000N
That is like trying to lift 612k=
g!
How many g’s?
http://www.popularmechanics.com/outdoors/sports/4212171=
.html
Concussions
nA
concussion is sustained when the brain is required to stop very quickly=
nWhen our bodies are in motion, so are our brains
nWhen we hit something and stop, our brains continue moving in the sa=
me =
direction (Newton’s First
Law)
------=_NextPart_01C77D18.53352F30
Content-Location: file:///C:/ED3956F3/ProtectioninSports_files/slide0066.htm
Content-Transfer-Encoding: quoted-printable
Content-Type: text/html; charset="us-ascii"
Concussions
nIn our heads we have two main defenses against concussions:
=
1.We have meninges that are thin membranes that protect our nerves and spin=
al
cord
2.In between the meninges we have cerebrospinal fluid which is like a “cushion̶=
1; between your brain and your skul=
l
When your brain hits your skull very hard, you <=
/span>sustain a concussion
How to Reduce a Concussion
n=
Helmets
cause the head to decelerate more slowly than if the head makes direct contact with a hard object, this
reduces =
the
force of the impact between your brain and your head as well as your head =
=
and the hard object
Concussions
How
do you know if you sustained a
concussion?
<=
span
style=3D'color:#827F4C;mso-color-index:3'>nHeadaches
<=
span
style=3D'color:#827F4C;mso-color-index:3'>nNausea
<=
span
style=3D'color:#827F4C;mso-color-index:3'>nLoss of memory
<=
span
style=3D'color:#827F4C;mso-color-index:3'>nConfusion
<=
span
style=3D'color:#827F4C;mso-color-index:3'>nLoss of balance
<=
span
style=3D'color:#827F4C;mso-color-index:3'>nSlowness in thinking, acting and speaking
<=
span
style=3D'color:#827F4C;mso-color-index:3'>nLoss of taste or smell
Why
wear protective equipment when
playing sports?
n=
They
maximize the time of a collision resulting in a smaller impulse
nThey spread the force of impact over a larger surface area, reducing the
pressure =
on one
specific area
nThe factors mentioned above will
protect =
you
from injury and may save your life
Without a Helmet
The contact area on your head is=
about 5cm x 5cm =3D 25 cm=
2
With a Helmet
The contact area on a helmet is&=
#13;
17.5cm x 17.5cm =3D 306.25cm2
12X less than without a helmet!&=
#13;
If
you are about to get bodychecked by
someone bigger than you, you should
keep your head up and don’t
drop your neck to your chest.
Why? Read on.
Why? Read on.
A Hockey Question
Diagram of the Spine
Axial Compression
When your neck vertebrae are lined up (in the flexion positio=
n), a force on top of the head will =
cause an axial compression and <=
/span>can break your vertebrae<=
/span>
So how can you avoid injury?
<=
span
style=3D'color:#827F4C;mso-color-index:3'>•Always wear your equipment
•Absorb all collisions as much as possible to maximize the stopping time
<=
/span>
<=
span
style=3D'color:#827F4C;mso-color-index:3'>•Avoid getting hit by bigger, faster people
<=
span
style=3D'color:#827F4C;mso-color-index:3'>•Heads up, don’t duck
Sources
<=
span
style=3D'color:#827F4C;mso-color-index:3'>npopular mechanics
nThe Physics of Football by Dr. Timothy Gay, Ph.D.
nDr. Gay’s website: =
http://physics.unl=
.edu/outreach/football.html
nPhysics for Scientists and Engineers by =
Dr. Douglas Giancoli, Ph.D.
' + ENDSHOW_MESG + '
![](3D"notes_flag.gif")
No=
tes![](3D"buttons.gif")
![](3D"slide0052_image002.jpg"){kind=link}
![](3D"slide0044_image004.jpg"){kind=link}
![](3D"slide0042_image006.png"){kind=link}