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Is 0.000000000000000420 parsecs as long as a London bus?

It's about one-and-a-half times as long as a London bus
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The length of a London bus is about 0.0000000000000002720 parsecs.
(Routemaster Double-Decker, RM standard specification)
The Routemaster Double-Decker buses, well-known as icons of London, measure 0.0000000000000002720 parsecs in length. The buses were said to be well-designed for travel in the London traffic, as they offered an open door for riders to board and exit even while the bus was moving at low speeds, and a full-time conductor to collect fares.
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