login
Hints
(Greetings from The On-Line Encyclopedia of Bongard Problems!)
Search: all:new
Displaying 451-460 of 1161 results found. ( prev | next )     page 1 ... 42 43 44 45 46 47 48 49 50 ... 117
     Sort: recent      Format: long      Filter: (all | no meta | meta)      Mode: (words | no words)
BP818 Dot's position within square is center of square's position within panel vs. not so.
(edit; present; nest [left/right]; search; history)
COMMENTS

All examples in this problem are dots inside square outlines.

CROSSREFS

Similar to BP1122 (the "fractal" version).

Adjacent-numbered pages:
BP813 BP814 BP815 BP816 BP817  *  BP819 BP820 BP821 BP822 BP823

KEYWORD

nice, notso, boundingbox, absoluteposition

CONCEPT bounding_box (info | search),
self-reference (info | search),
center (info | search),
distance_from_center (info | search)

WORLD

point_inside_square [smaller | same | bigger]

AUTHOR

Leo Crabbe

BP817 Bongard Problems with solution relating to concept: cross section vs. Bongard Problem unrelated to this concept.
BP559
BP816
(edit; present; nest [left/right]; search; history)
COMMENTS

Bongard Problems with solutions related to cross sections of 3D shapes.

CROSSREFS

Adjacent-numbered pages:
BP812 BP813 BP814 BP815 BP816  *  BP818 BP819 BP820 BP821 BP822

KEYWORD

meta (see left/right), links, metaconcept

CONCEPT This MBP is about BPs that feature concept: "cross_section"

WORLD

bp [smaller | same | bigger]

AUTHOR

Leo Crabbe

BP816 Cross section of a cylinder vs. not cross section of a cylinder
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP811 BP812 BP813 BP814 BP815  *  BP817 BP818 BP819 BP820 BP821

KEYWORD

precise, notso, stretch, unstable, perfect

CONCEPT cross_section (info | search)

WORLD

fill_shapes [smaller | same | bigger]

AUTHOR

Leo Crabbe

BP815 Bongard Problem with solution relating to concept: extra part vs. Bongard Problem unrelated to this concept.
BP148
BP218
(edit; present; nest [left/right]; search; history)
CROSSREFS

See BP668.

Adjacent-numbered pages:
BP810 BP811 BP812 BP813 BP814  *  BP816 BP817 BP818 BP819 BP820

KEYWORD

meta (see left/right), links, metaconcept

CONCEPT This MBP is about BPs that feature concept: "extra_part"

AUTHOR

Harry E. Foundalis

BP814 Bongard Problems with solution "object features concept: ___" vs. other BP pages.
BP373
BP543
BP797
BP847
BP869
BP1002
(edit; present; nest [left/right]; search; history)
COMMENTS

Left examples have the keyword "concept" on the OEBP.

Each concept has a corresponding metaconcept page, which describes that concept and catalogues Bongard Problems featuring that concept.

CROSSREFS

Adjacent-numbered pages:
BP809 BP810 BP811 BP812 BP813  *  BP815 BP816 BP817 BP818 BP819

KEYWORD

meta (see left/right), links, keyword

WORLD

bppage [smaller | same | bigger]

AUTHOR

Aaron David Fairbanks

BP813 Representations of natural mathematical objects vs. representations of arbitrary objects.
(edit; present; nest [left/right]; search; history)
COMMENTS

This is a very fuzzy definition. Some left examples arguably should be placed on the right, since the particular way they are represented is arbitrary--the Platonic solids EX6730 and primes EX6734 especially, as these show arbitrary placement and arrangement of objects. Furthermore if arbitrary representations are allowed one cannot be sure for example the right hand drawing of random numbers EX6740 does not represent "numbers" in general. Still this Bongard Problem has been solved by people.

CROSSREFS

Adjacent-numbered pages:
BP808 BP809 BP810 BP811 BP812  *  BP814 BP815 BP816 BP817 BP818

KEYWORD

fuzzy, abstract, stretch, math, solved, collective, experimental, dithering

AUTHOR

Aaron David Fairbanks

BP812 Aesthetically pleasing vs. not so.
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP807 BP808 BP809 BP810 BP811  *  BP813 BP814 BP815 BP816 BP817

KEYWORD

easy, fuzzy, abstract, notso, stretch, anticomputer, subjective, invalid, experimental, funny, dithering

AUTHOR

Aaron David Fairbanks

BP811 Archimedean tiling (regular polygons, all vertices look the same) versus two-uniform tiling (regular polygons, two different kinds of vertex).
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP806 BP807 BP808 BP809 BP810  *  BP812 BP813 BP814 BP815 BP816

KEYWORD

nice, math

CONCEPT infinite_plane (info | search),
tiling (info | search),
symmetry (info | search)

WORLD

wallpaper_tiling [smaller | same | bigger]

AUTHOR

Aaron David Fairbanks

BP810 Figures can be transformed into one another by smooth stretching (intersection points stay constant; paths connecting those points remain), while remaining within the 2d box vs. movement out of the plane required.
(edit; present; nest [left/right]; search; history)
CROSSREFS

All examples here fit left in BP809, a version where the figures are allowed to pass through themselves while being deformed.

Adjacent-numbered pages:
BP805 BP806 BP807 BP808 BP809  *  BP811 BP812 BP813 BP814 BP815

KEYWORD

nice, math, unorderedpair, traditional

CONCEPT topological_transformation (info | search)

WORLD

two_homeomorphic_figures_made_of_curves [smaller | same | bigger]

AUTHOR

Aaron David Fairbanks

BP809 Figures can be transformed into one another by smooth stretching (before and after there are the same crossroad-points; there is a curve connecting points before if and only if there is a curve connecting those points after) vs. not so.
(edit; present; nest [left/right]; search; history)
COMMENTS

Left examples are topologically homeomorphic figures.


For some examples one can imagine pulling the shape "out of" the 2d square in 3d in order to transform it, and then laying it flat back in the 2d square. See BP810 for the version where this is not allowed.

CROSSREFS

Adjacent-numbered pages:
BP804 BP805 BP806 BP807 BP808  *  BP810 BP811 BP812 BP813 BP814

KEYWORD

nice, math, unorderedpair, traditional

CONCEPT topological_transformation (info | search)

WORLD

two_figures_made_of_curves [smaller | same | bigger]
zoom in left (two_homeomorphic_figures_made_of_curves)

AUTHOR

Aaron David Fairbanks

( prev | next )     page 1 ... 42 43 44 45 46 47 48 49 50 ... 117

Welcome | Solve | Browse | Lookup | Recent | Links | Register | Contact
Contribute | Keywords | Concepts | Worlds | Ambiguities | Transformations | Invalid Problems | Style Guide | Goals | Glossary