This week Boeing said it hopes to develop a passenger-carrying hypersonic airliner that would do exactly that, reaching speeds of Mach 5 - about 3,800 mph or roughly five times the speed of sound.
from NDTV News - Special https://ift.tt/2yV6WJE
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6.9-Magnitude Earthquake In Vanuatu Triggers Brief Tsunami Warning
The magnitude of the earthquake was revised to 6.9, down from an earlier estimate of 7.2 magnitude, the centre said in an update. from NDT...
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