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Construction The microwave light craft is equipped with two powerful magnets and three types of propulsion engines. Large number of antennas, built on the top of the craft, receives microwaves and converts it into electricity required for launching. The electricity produced ionizes the air and propels the craft forward. Upon reaching a high altitude the light craft tilts sideways. Part of the microwave power reflected from the front of the ship is used to heat the air. This allows the spacecraft to cut through the air up to 25 times faster with respect to the speed of sound. The other half is converted into electricity by the receiving antenna. This electricity produced help in energizing the engines, which help in accelerating air around the craft. Nasa researchers are working to develop a system that relies on microwaves beamed either from satellite or from a fixed point on earth. Their goal is to transport payloads and people into the low earth orbit for approximately about $100 per pound. This cost is roughly 1 % of the total cost of launching the same payload with the help of a space shuttle. The next propulsion technique uses atmospheric oxygen for propulsion. These rockets are known as air-breathing rockets. Let us see their working in detail. | ||