The year 1999 in science and technology involved some significant events. == Aeronautics == February 27 – While trying to circumnavigate the world in a hot air balloon, Colin Prescot and Andy Elson set a new endurance record after being in their balloon for 233 hours and 55 minutes.
The year 1999 in science and technology involved some significant events. == Aeronautics == February 27 – While trying to circumnavigate the world in a hot air balloon, Colin Prescot and Andy Elson set a new endurance record after being in their balloon for 233 hours and 55 minutes.
Source: Wikipedia "1999 in science" · CC BY-SA 4.0
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