name two devices that we use on earth, which use the same principles as space capsules. Explain for each one.
A space capsule keeps gases that are inside from leaking out, and keep outside gases (if any) from getting inside. Examples of containers that do this on Earth would be a light bulb (which must keep oxygen out) and a can of soda.
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Two devices on Earth that use similar principles to space capsules are submarines and deep-sea diving suits.
1. Submarines: Submarines operate on the same basic principles as space capsules, but in the opposite environment. Like space capsules, submarines are designed to maintain a controlled environment for humans to survive in extreme conditions. They are built to withstand high-pressure environments, just like the vacuum of space. Submarines have airtight compartments that provide a habitable environment for the crew, similar to the pressurized cabins of a space capsule. The hull of a submarine is made of thick, strong materials to withstand the immense pressure exerted by the water, equivalent to the pressure exerted by space on a spacecraft.
2. Deep-Sea Diving Suits: Deep-sea diving suits, also known as atmospheric diving suits or ADS, are another example of Earth-based devices that share principles with space capsules. These suits are specifically designed to protect divers from the extreme conditions of deep-sea environments. Like space capsules, ADS have a rigid structure capable of withstanding high pressure. The suit's joints are sealed to maintain a controlled atmosphere for the diver, similar to the spacesuit worn by astronauts. The pressure inside the suit is regulated, protecting the diver from the immense pressure of deep-sea waters, just as space capsules protect astronauts from the vacuum of space.
In summary, both submarines and deep-sea diving suits employ similar principles to space capsules by providing a controlled environment for humans, sealing against high-pressure conditions, and ensuring their occupants' safety in extreme environments.