SOLAR SYSTEM

UNIVERSE

SPACE EXPLORATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of these criteria could NOT be used when considering food and energy for astronauts during manned space flights?
A
history of space food
B
food crumbs in zero gravity
C
rehydration of certain foods
D
food storage for long periods
Explanation: 

Detailed explanation-1: -The food supply during space flight must be safe, nutritious, convenient, and compact, while meeting the psychological and taste requirements of astronauts under weightlessness or artificial gravity.

Detailed explanation-2: -sufficient mass to provide gravity equal to that of Earth. powerful engines to escape the pull of Earth’s gravity. enough food for the astronauts to eat for several years. adequate space in which the astronauts can float freely.

Detailed explanation-3: -Salt and pepper and other granular spices and seasonings can make for a huge mess in microgravity. There is a danger they could clog air vents, contaminate equipment or get stuck in an astronaut’s eyes, mouth or nose. Carbonated beverages such as soda and coke act differently in space than on Earth.

Detailed explanation-4: -Space foods usually have the following characteristics: nutritious, light weight, compact, easily digestible, palatable, physiologically appropriate, well packed, quick to serve, easy to clean-up, high acceptability with minimum preparation.

Detailed explanation-5: -Today, astronauts on the space shuttle eat food in much the same way as they do here on Earth. In a low-gravity environment, food and drinks would simply float away if they weren’t handled correctly. To combat this problem, food is carefully contained and drinks are packaged as dehydrated powders.

Detailed explanation-6: -Radiation. The first hazard of a human mission to Mars is also the most difficult to visualize because, well, space radiation is invisible to the human eye. Isolation and confinement. Distance from Earth. Gravity (or lack thereof) Hostile/closed environments. 08-May-2019

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