Tag Archives: Sea

The reusable rocket SpaceX successfully lands at sea for the first time

The private spaceflight company SpaceX successfully landed a reusable Falcon 9 rocket booster today  the second such landing for the company, and the first successful touchdown on a ship. The two-stage Falcon 9 rocket blasted off at 4:43 p.m. today (April … Continue reading

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Silent Sea Engine for Nuclear Subs

In the silent world of underwater warfare, the slightest noise can bring sudden death to a submarine. The electronic eats of the enemy can detect conventional engines and screw propellers as far as 100 miles away. A computer interprets the … Continue reading

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