Astronauts

The impact of pressure in space on astronauts during extravehicular activities can lead to decompression sickness, also known as "the bends." This occurs when the pressure around the astronaut decreases rapidly, causing nitrogen bubbles to form in the bloodstream. Symptoms can include joint pain, dizziness, and fatigue. To prevent this, astronauts must undergo a process called "pre-breathing" to adjust their bodies to the lower pressure before going outside the spacecraft.

Astronauts float in space because there is no gravity pulling them down. In space, there is microgravity, which means that objects and people appear weightless and float freely. This is because there is no force pulling them towards a specific direction, allowing them to move around without feeling the effects of gravity.

No, astronauts wear specialized space suits or flight suits inside the spacecraft cabin. These suits are designed to protect astronauts from the harsh conditions of space, including extreme temperatures, microgravity, and potential emergencies.

The name of John Glenn's space capsule was Friendship 7.

They probably could, but up until now, none of the world's national space agencies

has begun to accept deaf applicants for astronaut training. Note that the customary

continuous communication with ground controllers might become an issue, although

in principle, it could be accomplished by 'texting'.

A few other conditions which, as of the present time, constitute automatic show-stoppers,

include, but are not limited to, vision impairments all the way from corrective lenses to

blindness, partial paralysis, lack of both a college degree and piloting experience, morbid

obesity, paranoia, mean or lower intelligence, tendency toward motion sickness, lack of

a level of ambition bordering on OCD, spinal stenosis, BPH, chronic renal calculus, etc.

Astronauts on the International Space Station clean themselves using no-rinse body wipes, liquid soap, and waterless shampoo. They use these products to wipe themselves down and then use a towel to absorb the excess moisture. Water is a limited resource on the ISS, so they have to be efficient with their cleaning routines.

The first Canadian space tourist was billionaire entrepreneur and philanthropist Guy Laliberté. He flew to the International Space Station in September 2009 aboard a Russian Soyuz spacecraft, spending 11 days in space.

The first Canadian trained as a mission specialist for the International Space Station was astronaut Chris Hadfield. He flew on two Space Shuttle missions to the ISS, STS-74 in 1995 and STS-100 in 2001. Hadfield later became the first Canadian to command the ISS in 2013.

Astronauts work both inside and outside the spacecraft. Inside, they conduct various experiments, operate equipment, and communicate with mission control. Outside, they perform spacewalks to conduct repairs, maintenance, and install new equipment on the spacecraft.

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John Glenn's spacesuit had an issue with seams that were made from a mix of wool and linen, which could potentially cause him to feel itchy during his space mission. This was concerning because any discomfort or distraction could affect his ability to focus on his tasks in space.

The space suit backpack is called the Portable Life Support System (PLSS) and contains oxygen tanks, a ventilation system, and filters to provide astronauts with breathable air. The PLSS also regulates temperature and removes carbon dioxide from the astronaut's exhaled air, ensuring they have a constant supply of fresh oxygen while in space.

The insulated features of a spacesuit are designed to regulate the temperature inside the suit by preventing heat loss or gain in the harsh environment of space. This helps protect the astronaut from extreme temperatures and maintain a comfortable internal temperature.

Astronauts need an air tank to supply them with oxygen to breathe in the airless environment of space, where there is no atmospheric pressure to support life. The air tank also helps regulate the pressure inside the astronaut's suit and provides a way to expel carbon dioxide.

Astronauts usually store their garbage aboard the spacecraft until it can be taken back to Earth for proper disposal. Some waste can be jettisoned into space, but this is regulated to minimize space debris. There are also recycling systems on the International Space Station to minimize waste production.

Sally Ride became the first American woman in space when she flew aboard the Space Shuttle Challenger in 1983.

Spacesuits for NASA are mainly made by private companies such as ILC Dover and Boeing. They are manufactured in specialized facilities designed to meet the stringent requirements for space exploration, including durability, flexibility, and protection from the harsh environment of space.

The Space Shuttle Columbia, on which Kalpana Chawla was a member of the crew, disintegrated upon re-entry into the Earth's atmosphere on February 1, 2003. A breach in the shuttle's thermal protection system caused by damage to the shuttle's wing during launch led to the tragedy.

Astronauts train before going to space to prepare for the physical and psychological challenges of space travel. Training helps them familiarize themselves with spacecraft operations, practice emergency procedures, and learn how to adapt to the unique environment of space. Additionally, training helps astronauts work effectively as a team and handle the stress of long-term missions.

The three most important tools for an astronaut to bring to space are a spacesuit for protection outside the spacecraft, a communication device to stay in touch with mission control and other crew members, and a navigation system to ensure proper orientation and trajectory alignment during spacewalks or emergency situations.

Typically, an astronaut and their vehicle are in free fall around the Earth (orbit). This feels like going down a big hill on a roller coaster, but it doesn't stop until reentry.

If you sat on a weighing scale while riding a roller coaster, you would see your weight change with changes in momentum as the roller coaster climbed, fell, banked etc.... Say you normally weigh 150lbs, when you're climbing up the big hill, the scale would show you weighing more than 150 (your weight plus the acceleration as you gain altitude). When you crest the hill and plummet downward, the scale will read much less than 150lb, as your seat, the scale & YOU fall back towards the ground.

Likewise, an astronaut sitting on scale would weigh more than normal during lift off and climbing to orbit. Typically, astronauts will weigh 2-4 times their normal weight during this time. Once the spacecraft is in orbit, it is in continuous free fall around the Earth. The scale would read "0" (zero).

No, astronauts wear specialized lunar overshoes called "moon boots" over their space suits when walking on the Moon. These moon boots are designed to protect the astronauts from the harsh lunar environment and provide stability on the uneven surface. They are not the same as athletic shoes used for sports on Earth.

Nomex is a meta-aramid material that is often used in space suits because of its flame-resistant properties and durability. It is lightweight, strong, and provides excellent protection against extreme temperatures and high levels of radiation in space.

The pressure in the astronaut's suit helps to counteract the lack of atmospheric pressure in space, preventing the body from swelling due to the vacuum of space. This pressure also helps to maintain a stable environment for the body's fluids and gases, allowing the astronaut to breathe and move more comfortably in space.

In space, there is no air or atmosphere for sound waves to travel through, so you wouldn't be able to hear a burp as there is no medium for sound to be transmitted. Sound requires particles such as air to vibrate and carry the sound waves, which is absent in the vacuum of space.