Scientists measure speeds this fast with a Mach number, named for Austrian physicist Ernst Mach. Sound has a speed of Mach 1 and anything Mach 5 or above is considered hypersonic. While the speed of sound changes depending on temperature and altitude, Mach 5 is about 3,800 miles (6,116 ...
ALFA-X:The next generation of bullet trains, known as ALFA-X, is currently being tested at speeds of almost 250 mph (400 kph), although the service maximum will be "only" 225 mph. JR EAST Fast train:Japan's distinctive Shinkansen "bullet trains" have been plying the country's high-spe...
ALFA-X:The next generation of bullet trains, known as ALFA-X, is currently being tested at speeds of almost 250 mph (400 kph), although the service maximum will be "only" 225 mph. JR EAST Fast train:Japan's distinctive Shinkansen "bullet trains" have been plying the country's high-spe...
Hypersonic speed is five times the speed of sound. Scientists measure speeds this fast with a Mach number, named for Austrian physicist Ernst Mach. Sound has a speed of Mach 1 and anything Mach 5 or above is considered hypersonic. While the speed of sound changes depending on temperature and...
The next generation of bullet trains, known as ALFA-X, is currently being tested at speeds of almost 250 mph (400 kph), although the service maximum will be “only” 225 mph. The defining features of these and other recent Shinkansen trains are their extraordinarily long noses, designed not...
All this talk of air-tearing speed and space-brushing altitude might leave you wondering how high or how fast we've already gone. As of November 2012, the X-15 rocket plane holds the world's unofficial speed record, 4,520 mph (7,274 kph, a hypersonic Mach 6.7), and unofficial altitud...
What if you could experience flying in the same way it feels to ride a motorcycle or personal watercraft -- fast, fun and with the wind in your face? Go to the next page to find out how one company is aiming to make it happen. 2: Icon A5 Brady White as Santa Claus sits in the...
The next generation of bullet trains, known as ALFA-X, is currently being tested at speeds of almost 250 mph (400 kph), although the service maximum will be “only” 225 mph. The defining features of these and other recent Shinkansen trains are their extraordinarily long noses, designed not...
An absolutely critical component in today’s ADAS testing is highly accurate GNSS/GPS positioning systems. These systems are used to measure relative positions and velocity among vehicles and objects very accurately and with fast update rates. A vehicle configured with DS-VGPS GNSS system and DEWE...