login
Hints
(Greetings from The On-Line Encyclopedia of Bongard Problems!)
BP1256 Arrows which if moved at speeds proportional to their length would pass eachother vs. not so
(edit; present; nest [left/right]; search; history)
CROSSREFS

Adjacent-numbered pages:
BP1251 BP1252 BP1253 BP1254 BP1255  * 

KEYWORD

precise, physics, unorderedpair, traditional

CONCEPT arrow (info | search)

AUTHOR

Matt Samuels

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