Walking, stair-climbing, up-pushing robotics

Two-leggedness isn't as easy as it looks.

Robotics are going to figure in every aspect of the technical society of the future. Sometimes, transportation comes down to walking. Our transportation systems have to learn to walk, too.
[h/t War News Update]

This video is in the video playlists Transport Future Robotic.

Additional uncaught exception thrown while handling exception.

Original

PDOException: SQLSTATE[42000]: Syntax error or access violation: 1142 UPDATE command denied to user 'mindfulwebworks'@'184.168.193.123' for table 'node_counter': UPDATE {node_counter} SET daycount=daycount + 1, totalcount=totalcount + 1, timestamp=:db_update_placeholder_0 WHERE ( (nid = :db_condition_placeholder_0) ); Array ( [:db_update_placeholder_0] => 1531743272 [:db_condition_placeholder_0] => 23314 ) in statistics_exit() (line 73 of /home/content/04/7574404/html/drupal7/modules/statistics/statistics.module).

Additional

PDOException: SQLSTATE[42000]: Syntax error or access violation: 1142 INSERT command denied to user 'mindfulwebworks'@'184.168.193.123' for table 'watchdog': INSERT INTO {watchdog} (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (:db_insert_placeholder_0, :db_insert_placeholder_1, :db_insert_placeholder_2, :db_insert_placeholder_3, :db_insert_placeholder_4, :db_insert_placeholder_5, :db_insert_placeholder_6, :db_insert_placeholder_7, :db_insert_placeholder_8, :db_insert_placeholder_9); Array ( [:db_insert_placeholder_0] => 0 [:db_insert_placeholder_1] => php [:db_insert_placeholder_2] => %type: !message in %function (line %line of %file). [:db_insert_placeholder_3] => a:6:{s:5:"%type";s:12:"PDOException";s:8:"!message";s:440:"SQLSTATE[42000]: Syntax error or access violation: 1142 UPDATE command denied to user 'mindfulwebworks'@'184.168.193.123' for table 'node_counter': UPDATE {node_counter} SET daycount=daycount + 1, totalcount=totalcount + 1, timestamp=:db_update_placeholder_0 WHERE ( (nid = :db_condition_placeholder_0) ); Array ( [:db_update_placeholder_0] => 1531743272 [:db_condition_placeholder_0] => 23314 ) ";s:9:"%function";s:17:"statistics_exit()";s:5:"%file";s:74:"/home/content/04/7574404/html/drupal7/modules/statistics/statistics.module";s:5:"%line";i:73;s:14:"severity_level";i:3;} [:db_insert_placeholder_4] => 3 [:db_insert_placeholder_5] => [:db_insert_placeholder_6] => http://mindfulwebworks.com/transport/walking-stair-climbing-up-pushing-robotics [:db_insert_placeholder_7] => [:db_insert_placeholder_8] => 54.162.123.74 [:db_insert_placeholder_9] => 1531743272 ) in dblog_watchdog() (line 160 of /home/content/04/7574404/html/drupal7/modules/dblog/dblog.module).