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How thick is the ice in an arena ice rink?

What is the tire pressure of a commercial jet?

Should all cars have centerlock wheels? No

What is the fastest submarine in the world?

Scary arrival – why planes sometimes land hard on purpose?

Neoplan Jumbocruiser – the largest double-decker bus in history

Why Škoda is replacing its winged arrow logo with a wordmark?

Pelorus Jack – dolphin from the sailing history books

Why some cars had fender-mounted side mirrors?

Peugeot 406 Coupé was almost a Fiat