PPT Slide
In a car (97 km/hr (60 mph)), you would circumnavigate the earth in 17.4 days.
In a jet aircraft (800 km/hr (500 mph)), you would circumnavigate the earth in 2.1 days.
In the Space Shuttle (28,800 km/hr (18,000 mph)), you would circumnavigate the earth in 1.4 hours (85 minutes).