★ 5.8
★ 10.0
★ 7.6
★ 8.3
★ 8.1
★ 6.2
★ 7.5
★ 7.3
★ 7.7
★ 6.9
★ 4.7
★ 6.3
★ 6.0
★ 7.1
★ 4.5
★ 7.2
★ 5.5
★ 0.0
An inventor demonstrates the fun - and perils - of his new time-travelling device.
