Backup diff of 2007-12-29 (No. 1)

• Backup list
• View the diff current.
• View the diff for visual.
• View the source.
• View the backup.
• Go to 2007-12-29.
  • 1 (2007-12-29 (Sat) 13:38:15)
  • 2 (2007-12-29 (Sat) 16:39:00)
  • 3 (2007-12-29 (Sat) 17:52:18)
  • 4 (2007-12-29 (Sat) 20:33:40)

• The added line is THIS COLOR.
• The deleted line is THIS COLOR.

- 重い物体も軽い物体も同時に落ちるって本当？ 
-- http://www.phys.u-ryukyu.ac.jp/~maeno/cgi-bin/pukiwiki/index.php?重い物体も軽い物体も同時に落ちるって本当？
- 5kgの石と1kgの石を同時に落としたら 
--  http://anond.hatelabo.jp/20071226170002