The Main Practical Problem Associated with Building an Interstellar Ramjet

question 20

Multiple Choice

The main practical problem associated with building an interstellar ramjet is

• A) making the ship large enough to scoop up enough hydrogen fuel given that the density of hydrogen in space is so low
• B) producing enough thrust to accelerate the spacecraft to a high enough speed
• C) separating the matter and antimatter fuels from each other
• D) receiving enough photon energy to propel the craft

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