Soit's got a magnitudehasgotten a manhasgot a direction.
It's pointingupwards.
Importantthings.
Angularmomentumisconservedquantityinphysics.
Sothisthing, onceyougetitspinningin a certainaccess, itwantstoremainspinningandthataccessunlessyougeneratedtalkviatheair, forexample, unlessyou'vegotlotsofwind.
Butifyou'reworkingwithrelativelycalmconditionsthanthesethings, thatthestabilityof a Frisbeeowesalmosteverythingtothefactthatit's actuallyspinningandthat's spinningkeepsitkeepsitsorientedin a particularplan.
Soonewaytodothaton I adviseanybodywhogetsoneoftheseforChristmas, anyofyouse a boardingscientistsgooutanddothis, get a highspeedcamerathatmightbe a bitexpensive.
Youcouldbookyourparentsforthataswell.
Get a ruler, getlotsoflighton, thenjuststick a ruleratthethetheexitoff, thegoneWhat's itcalledthebarrel?
Somysonisthreeyearsold, ishe's tooyoungforthis, but I don't think I'llbuyit.
Formanywomeninthefirstplace I thinkit's forolderkidssothateyesgoingtoremaininthedepartmentandwecanuseitforvariousdifferentdemonstrations, infactmightwellbringitintolecturesonKeeptheundergraduatesundercontrolwouldbequitegood, becauseatthemoment, if I fallasleeportheymakenoise, I pokedhimwith a bigstick.