a href="http://www.nytimes.com/2008/07/31/sports/othersports/31xgames.html?partner=rssnytemc=rss"img src="http://graphics8.nytimes.com/images/2008/07/31/sports/31xgames_75.jpg" border="0" height="75" width="75" hspace="4" align="left"/aAfter a 45-foot fall in the X Games last year, Jake Brown, a professional skateboarder, rode the 62-foot-tall, 293-foot-long Mega Ramp again. More...