The Future of Air Travel

It used to be that you could get on a Concorde jet and fly across the Atlantic ocean faster than the speed of sound, but what does the future hold for supersonic flight?

Hosted by: Hank Green
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Sources:
http://www.eyewitnesstohistory.com/wright.htm
http://www.nasa.gov/audience/forstudents/5-8/features/nasa-knows/what-is-supersonic-flight-58.html
http://www.nasa.gov/centers/dryden/history/HistoricAircraft/X-1/techdata.html
http://www.physicsclassroom.com/class/sound/Lesson-3/The-Doppler-Effect-and-Shock-Waves
http://www.iflscience.com/technology/new-concorde-could-fly-london-new-york-55-minutes
http://phys.org/news/2009-12-materials-hypersonic-supersonic-hot-video.html
http://www.nasa.gov/missions/research/f_scramjets.html
http://www.aerospaceweb.org/question/design/q0006.shtml
http://www.scientificamerican.com/article/what-happens-when-an-airc/

Images:
https://commons.wikimedia.org/wiki/File:British_Airways_Concorde_G-BOAC_03.jpg
https://commons.wikimedia.org/wiki/File:First_flight2.jpg
https://commons.wikimedia.org/wiki/File:RIAN_archive_566221_Tu-144_passenger_airliner.jpg
https://commons.wikimedia.org/wiki/File:FA-18_going_transonic.JPG
https://commons.wikimedia.org/wiki/File:Bell_X-1_46-062_(in_flight).jpg
https://commons.wikimedia.org/wiki/File:B-29_in_flight.jpg
https://commons.wikimedia.org/wiki/File:Sonic_boom.svg
http://www.nasa.gov/centers/armstrong/features/shock_and_awesome.html
https://commons.wikimedia.org/wiki/File:Concorde_-_airframe_temperatures.svg
https://commons.wikimedia.org/wiki/File:Turbo_ram_scramjet_comparative_diagram.svg
https://commons.wikimedia.org/wiki/File:North_American_X-15.jpg
https://commons.wikimedia.org/wiki/File:X15_speed_altitude.jpg
https://commons.wikimedia.org/wiki/File:X43a2_nasa_scramjet.jpg
http://www.nasa.gov/missions/research/x43-main.html
https://en.wikipedia.org/wiki/File:X-43A.jpg