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Question from Ch-14 ( The Universe)
Class 8th.
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Answers
Scientists have come up with special ways of packaging and eating foods in space. The first space foods were soft foods (kind of like baby food!) packaged in tubes like toothpaste.
John Glenn became the first U.S. astronaut to eat in space in 1962. He ate applesauce from an aluminum tube during a Mercury mission. He had to squeeze the food into his mouth.
If that doesn’t sound very good to you, you’re not alone. Astronauts weren’t crazy about it, either. Eventually, scientists found ways to make better, tastier space foods. They were also easier to eat!
Freeze-drying is one technique they use. In this method, food is quickly frozen and dehydrated after it’s cooked. Freeze-dried food doesn’t need to be refrigerated and lasts a long time.
To eat freeze-dried food, astronauts squeeze water into the food packages. After the food absorbs the water, it’s ready to eat. Astronauts can use hot water to make hot meals that are tasty and nutritious.
Some freeze-dried foods, like fruit, can be eaten dry. In fact, you may eat astronaut food from time to time without realizing it. Today, many breakfast cereals include freeze-dried fruits, like strawberries.
Astronauts today eat many of the same foods they eat on Earth. Food is still dehydrated or prepared in special ways. But space shuttles now have full kitchens with hot water and an oven.
Astronauts can also use condiments. They use ketchup, mustard, and mayonnaise packets to add flavor. They can add salt and pepper, too. However, these spices have to be in a liquid form. Otherwise, the grains would just float away!
Drinks also have to be dehydrated. They’re kept in powder form in special pouches. The pouches have built-in straws or special nozzles. That way, astronauts can drink straight from the pouch after water is added.
To make sure their food doesn’t float off, astronauts use Velcro fasteners. Their trays fasten to their laps, so they can enjoy a meal while sitting down.
Nutritionists plan astronaut meals to make sure they get all the nutrients and vitamins they need. Still, some astronauts experience digestive problems after they’ve been in space a long time.
Experts believe these problems may be caused by a decrease in the number of “good” bacteria in astronauts’ bodies. A group of high school students in Jefferson County, Kentucky, is going to help researchers learn more about this issue. The students’ experiment will fly into outer space on the space shuttle Endeavour.
As part of the Student Spaceflight Experiments Program, the students planned an experiment to test the effect of microgravity on Lactobacillus GG. That’s a probiotic that could help future astronauts stay healthier in space.
Answer:
Scientists have come up with special ways of packaging and eating foods in space. The first space foods were soft foods (kind of like baby food!) packaged in tubes like toothpaste.
John Glenn became the first U.S. astronaut to eat in space in 1962. He ate applesauce from an aluminum tube during a Mercury mission. He had to squeeze the food into his mouth.
If that doesn’t sound very good to you, you’re not alone. Astronauts weren’t crazy about it, either. Eventually, scientists found ways to make better, tastier space foods. They were also easier to eat!
Freeze-drying is one technique they use. In this method, food is quickly frozen and dehydrated after it’s cooked. Freeze-dried food doesn’t need to be refrigerated and lasts a long time.
To eat freeze-dried food, astronauts squeeze water into the food packages. After the food absorbs the water, it’s ready to eat. Astronauts can use hot water to make hot meals that are tasty and nutritious.
Some freeze-dried foods, like fruit, can be eaten dry. In fact, you may eat astronaut food from time to time without realizing it. Today, many breakfast cereals include freeze-dried fruits, like strawberries.
Astronauts today eat many of the same foods they eat on Earth. Food is still dehydrated or prepared in special ways. But space shuttles now have full kitchens with hot water and an oven.
Astronauts can also use condiments. They use ketchup, mustard, and mayonnaise packets to add flavor. They can add salt and pepper, too. However, these spices have to be in a liquid form. Otherwise, the grains would just float away!
Drinks also have to be dehydrated. They’re kept in powder form in special pouches. The pouches have built-in straws or special nozzles. That way, astronauts can drink straight from the pouch after water is added.
To make sure their food doesn’t float off, astronauts use Velcro fasteners. Their trays fasten to their laps, so they can enjoy a meal while sitting down.
Nutritionists plan astronaut meals to make sure they get all the nutrients and vitamins they need. Still, some astronauts experience digestive problems after they’ve been in space a long time.
Experts believe these problems may be caused by a decrease in the number of “good” bacteria in astronauts’ bodies. A group of high school students in Jefferson County, Kentucky, is going to help researchers learn more about this issue. The students’ experiment will fly into outer space on the space shuttle Endeavour.
As part of the Student Spaceflight Experiments Program, the students planned an experiment to test the effect of microgravity on Lactobacillus GG. That’s a probiotic that could help future astronauts stay healthier in space.