Bruce D. Kothmann

[Bruce D. Kothmann @CounterDiagonal]

Check out the counter weight system on the fire escape. Looks like moment would decrease with downward rotation, but less quickly than moment due to person’s weight at fixed location—>stable deployment? #mechanics4safety

[Bruce D. Kothmann @CounterDiagonal]

Today I learned this simple trick! Don't really understand it yet. Waiting for Mikey to try it on his woodpile...
#StaticEquilibriumMagic

[Bruce D. Kothmann @CounterDiagonal]

How big must n be for minimum area square holding n^2 unit circles to have side length less than 2n?
#hamantaschen
https://t.co/z3qp9ABaHB

[Bruce D. Kothmann @CounterDiagonal]

Always slightly overfill your water rockets for extra excitement!
#ThanksgivingFun!

[Bruce D. Kothmann @CounterDiagonal]

Getting excited for new Autonomous Vehicle Control class... Toys + Math = Fun!
#HandsOnLearning

[Bruce D. Kothmann @CounterDiagonal]

Good=Fan reduces treadmill power penalty. Bad=Incline (blue) & mph (green) same scale below, different on top?! Ugly=#NearFall4Photo

[Bruce D. Kothmann @CounterDiagonal]

#MagicalBuoyancyRestoration!

[Bruce D. Kothmann @CounterDiagonal]

747-8i #IAD
#LongestAirplane
#PlaneSpotting

[Bruce D. Kothmann @CounterDiagonal]

#UPenn #MEAM Faculty & students enjoyed beautiful fall morning riding along Schuylkill river on 6th annual bicycle bridge tour!

[Bruce D. Kothmann @CounterDiagonal]

Harvey wind speed from NWS data in cities around Texas matches #OseenVortex well. Correct physics?! Thoughts & Prayers with Houston area.

[Bruce D. Kothmann @CounterDiagonal]

Water bottle closed at altitude looks like this on landing!
#CabinPressurization
#StandardAtmosphere
#PressureVesselBuckling
#Science !

[Bruce D. Kothmann @CounterDiagonal]

#NormanDoor #Why

[Bruce D. Kothmann @CounterDiagonal]

What is the maximum time we can get the can to stay balanced, before evaporation causes it to topple?
#MechanicsFun

[Bruce D. Kothmann @CounterDiagonal]

Best part of #MiniGolf on #OBX is #vortex due to perforated drain pipe in water hazard! #IdealFlowModel

[Bruce D. Kothmann @CounterDiagonal]

#EvaporativeCooling makes it much easier to enjoy #TexMex in Austin!

[Bruce D. Kothmann @CounterDiagonal]

Watched #TotalSolarEclipse at Southern Hills Golf Club in Cookeville, TN. Someone there shared his amazing photos. Plan now for #8April2024

[Bruce D. Kothmann @CounterDiagonal]

In Austin, trying to escape Harvey today & thinking about #vorticity. Hoping for least bad possible outcome for TX coast.

[Bruce D. Kothmann @CounterDiagonal]

#PhiladelphiaUnion #BigWin #CantileverTruss #LongestCantileverSpanUS
Commodore Barry Bridge.
Great belated Fathers Day gift!

[Bruce D. Kothmann @CounterDiagonal]

Developing new labs is #Fun
#LimitCycle
I get to learn things! #PathPlanning

[Bruce D. Kothmann @CounterDiagonal]

#LimitCycle
#FanPerformanceCurves
Anybody want to do some #DimensionalAnalysis on this?! Do #MaterialProperties of the tube matter? #Fun!