Which travels faster: light or sound?
These days other temptations distract the elite, which travels widely.
Rising world trade, much of which travels by sea, is making ports ever more profitable.
"It's a sprawling multi-generational saga, which travels between many different countries.
Unfortunately, there's not much suspense or mystery in this show, which travels to Washington and Chicago.
The team, which travels to major tournaments, finished second in the country two years ago.
The ITF has also developed a larger tennis ball, called the Type 3, which travels more slowly through the air.
The busiest train in autumn 2015 was the 06.57 from Brighton to Bedford, which travels through London.
Much more is known about the second major route out of Myanmar, which travels south and then east, through Thailand.
Both companies have spectrum in the 900 Megahertz (MHz) range, which travels further and therefore requires fewer masts.
The organization also runs the Love Train, which travels the country's rails displaying South Africa's largest billboard.
