TransOceanic Travel via
PARTIALLY AIRLESS TUBES
Airless tubes with a vacuum would remove air drag, allowing for impressive speeds. (The vehicles themselves will contain pressurized air, just like an airplane.) "A cheaper alternative to removing the air completely is to depressurize it, the researchers say."
"The best use of such [tube] technology?"
"Call it the Concorde 2.0: live in New York, work in London."
"Or travel from New York to Los Angeles in 45 minutes."
Lack of air resistance could permit vehicles to travel at very high speeds—up to 4,000–5,000 mph (6,400–8,000 km/h), which is 5–6 times the speed of sound (hypersonic speed) in Earth's atmosphere at sea level—using relatively little power.