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The operation consisted of 29 explosions, of which only two did not produce any nuclear yield.Twenty-one laboratories and government agencies were involved. While most Operation Plumbbob tests contributed to the development of warheads for intercontinental and intermediate range missiles, they also tested air defense and anti-submarine warheads with smaller yields.
The LignoSat 1 is a CubeSat and measures 10 centimetres (3.9 in) on each side, [5] and weighs 900 grams (32 oz) [3]. The satellite was launched to space on November 5, 2024 by SpaceX's Falcon 9 Block 5 rocket inside the uncrewed Cargo Dragon from the Kennedy Space Center in Florida to the International Space Station' LC-39A.
A round manhole and its cover. A manhole cover is a removable plate forming the lid over the opening of a manhole, an opening large enough for a person to pass through that is used as an access point for an underground vault or pipe. It is designed to prevent anyone or anything from falling in, and to keep out unauthorized persons and material.
To avoid excessive creation of artificial space debris, many – but not all – satellites launched to above-low-Earth-orbit are launched initially into elliptical orbits with perigees inside Earth's atmosphere so the orbit will quickly decay and the satellites then will be destroyed upon reentry into the atmosphere. Other methods are used for ...
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A manhole (utility hole, maintenance hole, [1] or sewer hole) is an opening to a confined space such as a shaft, utility vault, or large vessel. Manholes, typically protected by a manhole cover , are often used as an access point for an underground public utility , allowing inspection, maintenance, and system upgrades.
The company sent its first two prototype satellites into space on Friday as part of Project Kuiper, its answer to SpaceX’s Starlink service.
One of the factors contributing to the ship's sinking was the open manhole used to access the bow structure sonar dome containing the boat's sonar sphere. The manhole has a bolted cover which had been removed for maintenance purposes. The opening was protected by a cofferdam approximately 3 feet (0.91 m) high. The cofferdam was intended to ...