#boundaryconditions — Public Fediverse posts

⚛️🐈 Why do electron shells exist?
(And why atoms are mostly space ☕)
Electrons don’t orbit like tiny planets.
They settle into stable boundary states — natural energy “resting places” defined by wave structure, geometry, and constraint.
No mysticism. No hand-waving.
Just physics doing what physics always does:
➡️ minimise instability
➡️ respect boundaries
➡️ jump only when enough energy is supplied
Those famous “quantum jumps”?
They’re not mysterious leaps — they’re boundary crossings.
This is why:
✨ electron levels are discrete
✨ tunnelling works
✨ atoms don’t collapse
✨ matter is ~99% empty space
Nature solved this long ago.
We’re just learning to listen rather than shout.
Marvin is watching.
Tea is still warm.
Curiosity continues. ☕🐾
#QuantumPhysics #ElectronShells #BoundaryConditions
#PhysicsExplained #Curiosity #ScienceCommunication
#QuantumMechanics #MarvinTheCat #ListenToNature

Controls On Longitudinal Stream Profile Evolution In Guadalupe Mountains National Park
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https://doi.org/10.1080/24694452.2025.2511941 <-- shared paper
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#GIS #spatial #mapping #FlintsLaw #GuadalupeMountainsNationalPark #longitudinal #streamprofile #rockstrength #SchmidtHammer #engineeringgeology #geology #GuadalupeMountains #NationalPark #water #hydrology #hydrography #erosion #boundaryconditions #spatialanalysis #remotesensing #climate #geomorphometry #geomorphology #lithology #rock #bedrock #incision #river #profile #testing #climatechange #surfaceprocesses #statistics #geostatistics #concanity #steepness #knickpoints #corrleation #model #modeling #NewMexico

Controls On Longitudinal Stream Profile Evolution In Guadalupe Mountains National Park
--
https://doi.org/10.1080/24694452.2025.2511941 <-- shared paper
--
#GIS #spatial #mapping #FlintsLaw #GuadalupeMountainsNationalPark #longitudinal #streamprofile #rockstrength #SchmidtHammer #engineeringgeology #geology #GuadalupeMountains #NationalPark #water #hydrology #hydrography #erosion #boundaryconditions #spatialanalysis #remotesensing #climate #geomorphometry #geomorphology #lithology #rock #bedrock #incision #river #profile #testing #climatechange #surfaceprocesses #statistics #geostatistics #concanity #steepness #knickpoints #corrleation #model #modeling #NewMexico

Controls On Longitudinal Stream Profile Evolution In Guadalupe Mountains National Park
--
https://doi.org/10.1080/24694452.2025.2511941 <-- shared paper
--
#GIS #spatial #mapping #FlintsLaw #GuadalupeMountainsNationalPark #longitudinal #streamprofile #rockstrength #SchmidtHammer #engineeringgeology #geology #GuadalupeMountains #NationalPark #water #hydrology #hydrography #erosion #boundaryconditions #spatialanalysis #remotesensing #climate #geomorphometry #geomorphology #lithology #rock #bedrock #incision #river #profile #testing #climatechange #surfaceprocesses #statistics #geostatistics #concanity #steepness #knickpoints #corrleation #model #modeling #NewMexico

Controls On Longitudinal Stream Profile Evolution In Guadalupe Mountains National Park
--
https://doi.org/10.1080/24694452.2025.2511941 <-- shared paper
--
#GIS #spatial #mapping #FlintsLaw #GuadalupeMountainsNationalPark #longitudinal #streamprofile #rockstrength #SchmidtHammer #engineeringgeology #geology #GuadalupeMountains #NationalPark #water #hydrology #hydrography #erosion #boundaryconditions #spatialanalysis #remotesensing #climate #geomorphometry #geomorphology #lithology #rock #bedrock #incision #river #profile #testing #climatechange #surfaceprocesses #statistics #geostatistics #concanity #steepness #knickpoints #corrleation #model #modeling #NewMexico

Controls On Longitudinal Stream Profile Evolution In Guadalupe Mountains National Park
--
https://doi.org/10.1080/24694452.2025.2511941 <-- shared paper
--
#GIS #spatial #mapping #FlintsLaw #GuadalupeMountainsNationalPark #longitudinal #streamprofile #rockstrength #SchmidtHammer #engineeringgeology #geology #GuadalupeMountains #NationalPark #water #hydrology #hydrography #erosion #boundaryconditions #spatialanalysis #remotesensing #climate #geomorphometry #geomorphology #lithology #rock #bedrock #incision #river #profile #testing #climatechange #surfaceprocesses #statistics #geostatistics #concanity #steepness #knickpoints #corrleation #model #modeling #NewMexico

#JeffTollaksen - What Does #QuantumTheory Mean?

https://www.youtube.com/watch?v=zYUcMrH5RKY

#Philosophy #PhilosophyOfScience #Science #hysics #QM #QuantumMechanics #QuantumPhysics #Metaphysics #Determinism #BoundaryConditions #Indeterminism #Time #Enntropy #ArrowOfTime #MeasurementProblem #Wave #Waves #WaveFunction #InterferencePattern #ParticleWaveDuality #WeakMeasurement #Past #Present #Future #Symmetry #CloserToTruth #RobertKuhn

#JeffTollaksen - What Does #QuantumTheory Mean?

https://www.youtube.com/watch?v=zYUcMrH5RKY

#Philosophy #PhilosophyOfScience #Science #hysics #QM #QuantumMechanics #QuantumPhysics #Metaphysics #Determinism #BoundaryConditions #Indeterminism #Time #Enntropy #ArrowOfTime #MeasurementProblem #Wave #Waves #WaveFunction #InterferencePattern #ParticleWaveDuality #WeakMeasurement #Past #Present #Future #Symmetry #CloserToTruth #RobertKuhn

#JeffTollaksen - What Does #QuantumTheory Mean?

https://www.youtube.com/watch?v=zYUcMrH5RKY

#Philosophy #PhilosophyOfScience #Science #hysics #QM #QuantumMechanics #QuantumPhysics #Metaphysics #Determinism #BoundaryConditions #Indeterminism #Time #Enntropy #ArrowOfTime #MeasurementProblem #Wave #Waves #WaveFunction #InterferencePattern #ParticleWaveDuality #WeakMeasurement #Past #Present #Future #Symmetry #CloserToTruth #RobertKuhn

#JeffTollaksen - What Does #QuantumTheory Mean?

https://www.youtube.com/watch?v=zYUcMrH5RKY

#Philosophy #PhilosophyOfScience #Science #hysics #QM #QuantumMechanics #QuantumPhysics #Metaphysics #Determinism #BoundaryConditions #Indeterminism #Time #Enntropy #ArrowOfTime #MeasurementProblem #Wave #Waves #WaveFunction #InterferencePattern #ParticleWaveDuality #WeakMeasurement #Past #Present #Future #Symmetry #CloserToTruth #RobertKuhn

#JeffTollaksen - What Does #QuantumTheory Mean?

https://www.youtube.com/watch?v=zYUcMrH5RKY

#Philosophy #PhilosophyOfScience #Science #hysics #QM #QuantumMechanics #QuantumPhysics #Metaphysics #Determinism #BoundaryConditions #Indeterminism #Time #Enntropy #ArrowOfTime #MeasurementProblem #Wave #Waves #WaveFunction #InterferencePattern #ParticleWaveDuality #WeakMeasurement #Past #Present #Future #Symmetry #CloserToTruth #RobertKuhn

The community of researchers and industrial users of #SmoothedParticleHydrodynamics is represented by #SPHERIC, an #ERCOFTAC #SIG with the objective of fostering the development of the method and its adoption <https://spheric-sph.org>.
#SPHERIC defined 5 #GrandChallenges for #SPH:
GC1: #convergence, #consistency and #stability
GC2: #BoundaryConditions
GC3: #adaptivity
GC4: Coupling to other models
GC5: Applicability to #industry