D-Dalus: A new kind of aircraft propulsion system made of rotating cylinders

D-Dalus hovercraft

Austrian Innovative Aeronautical Technology (IAT21), an Austrian engineering firm debuted a new type of hovercraft at the Paris Air Show this week. They claim the hovercraft can take off and land vertically without using any rotor blades or fixed wings.

 

 

Continue reading… “D-Dalus: A new kind of aircraft propulsion system made of rotating cylinders”

Why It Will Be at Least 200 Years Before Interstellar Travel will Be Possible

astrochemistry

We won’t have enough power until 2211 for interstellar travel.

Interstellar travel won’t be possible for at least 200 years, according to a former NASA propulsion scientist who has some new calculations. And by then, the spaceships we would design for the trip will be obsolete.

 

Continue reading… “Why It Will Be at Least 200 Years Before Interstellar Travel will Be Possible”

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