Notes from Thursday 8 January: https://notes.peteashton.com/2026/01/08/notes-from-thursday-january.html
After a foggy day the big storm hit and the garden looked like this at 10pm. (15sec, f7.1, ISO 200)
Notes from Thursday 8 January: https://notes.peteashton.com/2026/01/08/notes-from-thursday-january.html
After a foggy day the big storm hit and the garden looked like this at 10pm. (15sec, f7.1, ISO 200)
@obot50549535
Apparently the compound of ten tetrahedra has 300 edges (when counted as non-intersecting).
Also, some octahedral geodesic polyhedra and Goldberg polyhedra have 300 edges: u5O and c5C at https://en.wikipedia.org/wiki/List_of_geodesic_polyhedra_and_Goldberg_polyhedra#Octahedral
Nice, but still looking for 300 faces (or vertices)...
#askfedi #mathematics #geometry #iTeachMath #polyhedron #geodesic
What happens when you build homes from physics first principles? #homebuilding #sustainableliving #physics_first_principles #bioceramics #geodesic
Eden Project, St Austell, Cornwall, 2000
Completed in 2000, this ambitious cluster of geodesic domes enclosed conservatories housing luxuriant plant eco-systems
Photograph: David Goddard/Getty Images
Mielenkiintoinen dokumentti kolmiomittauksesta, tai miten suomi kartoitettiin yli 80 vuoden ajan olleen näin maailman tarkin kolmiomittaus. Virhe 1300 km päässä vain ~2 metriä. Uskomatonta. Viimeiset kolmiomittaukset tehtiin vielä 1987. #geodesic #kolmiomittaus