nourishing obscurity

9 Responses to “Are these lines straight?”

1. QM, on January 25th, 2010 at 22:54 Said:

   Yes to both

   
   
2. CherryPie, on January 25th, 2010 at 22:54 Said:

   My head hurts!

   
   
3. BobG, on January 25th, 2010 at 23:37 Said:

   Yep. Nice illusion.

   
   
4. Barking Spider, on January 25th, 2010 at 23:47 Said:

   Yes they are. Takes a bit of looking at, though!

   
   
5. Richard from TEV, on January 26th, 2010 at 01:07 Said:

   Define parallel!

   
   
6. gracchi, on January 26th, 2010 at 08:13 Said:

   On a parallel tangent (and I hope you see how that works), I remember listening to an In our Time and being confused by the observation that in some geometries there are parallel lines that meet!

   
   
7. James Higham, on January 26th, 2010 at 09:07 Said:

   Yes, Tiberius. To Richard – my definition is two straight lines in the same plane which never meet in either direction. Mathematicians please tear this apart.

   
   
8. MTG, on January 26th, 2010 at 10:54 Said:

   Aah, the Royal Emetic Society logo. Bucket, please.

   
   
9. James Higham, on January 26th, 2010 at 11:31 Said: