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BP161 Midpoints are collinear vs. midpoints are not collinear.
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP156 BP157 BP158 BP159 BP160  *  BP162 BP163 BP164 BP165 BP166

KEYWORD

nice, unorderedtriplet, traditional

CONCEPT all (info | search),
collinear (info | search),
midpoint (info | search),
imagined_point (info | search),
imagined_entity (info | search)

AUTHOR

Harry E. Foundalis

BP162 Every other side, if extended, passes through one point vs. not so.
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP157 BP158 BP159 BP160 BP161  *  BP163 BP164 BP165 BP166 BP167

KEYWORD

hard, noisy, traditional

CONCEPT lines_coincide (info | search),
every_other (info | search),
imagined_point (info | search),
imagined_line_or_curve (info | search),
imagined_entity (info | search)

AUTHOR

Harry E. Foundalis

BP163 Line connecting small shapes does not intersect large one vs. line connecting small shapes intersects large one.
(edit; present; nest [left/right]; search; history)
CROSSREFS

See BP1015 for a re-skinned version with dots instead of shapes.

Adjacent-numbered pages:
BP158 BP159 BP160 BP161 BP162  *  BP164 BP165 BP166 BP167 BP168

KEYWORD

traditional

CONCEPT imagined_line_or_curve (info | search),
imagined_entity (info | search),
object_line_overlap (info | search),
overlap (info | search)

AUTHOR

Harry E. Foundalis

BP178 Center of circle in triangle perpendicular to the other two vs. not so.
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP173 BP174 BP175 BP176 BP177  *  BP179 BP180 BP181 BP182 BP183

KEYWORD

traditional

CONCEPT center_of_circle (info | search),
center (info | search),
imagined_point (info | search),
imagined_entity (info | search),
triangle (info | search)

AUTHOR

Harry E. Foundalis

BP183 Same curvature close to the middle vs. change of curvature close to the middle.
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP178 BP179 BP180 BP181 BP182  *  BP184 BP185 BP186 BP187 BP188

KEYWORD

noisy, traditional

CONCEPT sides_of_line (info | search),
tangent (info | search),
imagined_point (info | search),
imagined_line_or_curve (info | search),
imagined_entity (info | search)

WORLD

curve [smaller | same | bigger]

AUTHOR

Harry E. Foundalis

BP184 Curve is smooth close to the middle vs. curve zigzags close to the middle.
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP179 BP180 BP181 BP182 BP183  *  BP185 BP186 BP187 BP188 BP189

KEYWORD

traditional

CONCEPT imagined_point (info | search),
imagined_entity (info | search),
curve_texture (info | search),
texture (info | search)

WORLD

curve [smaller | same | bigger]

AUTHOR

Harry E. Foundalis

BP193 Ghost triangle vs. Ghost rectangle.
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP188 BP189 BP190 BP191 BP192  *  BP194 BP195 BP196 BP197 BP198

KEYWORD

nice, anticomputer, traditional, dithering

CONCEPT absence_as_presence (info | search),
completed_out_of_box (info | search),
ghost (info | search),
number (info | search),
imagined_shape (info | search),
imagined_entity (info | search),
triangle (info | search)

AUTHOR

Harry E. Foundalis

BP194 Background is a parallelogram vs. background is a triangle.
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP189 BP190 BP191 BP192 BP193  *  BP195 BP196 BP197 BP198 BP199

KEYWORD

easy, nice, noisy, traditional

CONCEPT shape_background (info | search),
number (info | search),
imagined_shape (info | search),
imagined_entity (info | search),
triangle (info | search)

AUTHOR

Harry E. Foundalis

BP199 Stays put vs. tumbles.
(edit; present; nest [left/right]; search; history)
CROSSREFS

BP273 has the same solution, except all examples are letters.

Adjacent-numbered pages:
BP194 BP195 BP196 BP197 BP198  *  BP200 BP201 BP202 BP203 BP204

KEYWORD

nice, handed, updown, rotate, physics, anticomputer, perfect

CONCEPT base (info | search),
downward_upward (info | search),
tumbles_or_stays_put (info | search),
line_absolute_direction (info | search),
absolute_direction (info | search),
imagined_line_or_curve (info | search),
imagined_entity (info | search),
direction (info | search),
gravity (info | search)

AUTHOR

Harry E. Foundalis

BP235 The rope, if extended, reaches the other ball vs. the rope, if extended, does not reach the other ball.
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP230 BP231 BP232 BP233 BP234  *  BP236 BP237 BP238 BP239 BP240

KEYWORD

anticomputer, traditional

CONCEPT length_line_or_curve (info | search),
reachable (info | search),
imagined_line_or_curve (info | search),
imagined_entity (info | search)

AUTHOR

Peter Shanahan

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