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Its not a questions of height or altitude.
Its about things free falling. A space ship falling around the Earth (everything in the space ship is also falling at the same speed) the astronauts are falling too. If you put a scale on the floor and an astronaut stepped on it, there is no downward force so it looks like they are weightless.
Picture yourself in an elevator at the top floor. You're standing on a scale. Gravity pulls you and the scale, but the elevator floor prevent you from falling. The scale will measure your weight.
If the elevator suddenly fell, it, you and the scale would all be accelerating towards the basement at 9.8m/s/s. The scale would read ZERO, because there is no force acting on the scale.
What else can I help you with?
What kind of machines are astronauts trained on to simulate being in space?
They use centrifical force machines to duplicate high G-forces. They train underwater to simulate weightlessness.
How high can a cranberry bounce before its harvested?
it is 4 inches
What are the release dates for Passion Play Christ Before the Two High Priests - 1903?
Passion Play Christ Before the Two High Priests - 1903 was released on: USA: January 1903
How did astronaut go back to the earth?
Astronauts return to Earth using a spacecraft that typically re-enters the atmosphere at high speeds. During re-entry, the spacecraft's heat shield protects it from the intense heat generated by friction with the atmosphere. Once it slows down, parachutes deploy to further reduce descent speed, allowing for a safe landing. Depending on the mission, they may land in the ocean or on solid ground.
Why is most space exploration accomplished with spacecraft that don't have astronauts on board?
Most space exploration is conducted with uncrewed spacecraft due to the high costs and risks associated with human life in space. Uncrewed missions can be designed to endure harsh environments and operate for extended periods without the need for life support systems. Additionally, these missions allow for the exploration of distant or hazardous locations that would be too dangerous for astronauts, maximizing scientific returns while minimizing risk.
Why the astronauts feel weightlessness inside the orbiting spacecraft?
Astronauts feel weightlessness inside an orbiting spacecraft because both the spacecraft and the astronauts are in a continuous state of free fall towards Earth. As the spacecraft travels at high speeds in orbit, it falls towards the planet but also moves forward, creating a curved path that matches the curvature of the Earth. This balance between gravitational pull and forward motion results in a sensation of weightlessness, as there is no support force acting on the astronauts. Essentially, they are in a state of microgravity, experiencing the effects of gravity but not feeling it as they would on the surface.
Because of free fall astonauts appear this way in orbit?
Because of free fall in orbit, astronauts experience a continuous state of falling towards Earth while moving forward at a high speed. This results in a sensation of weightlessness, giving the appearance that they are floating or flying inside the spacecraft.
Are astronauts weightless inside a international space station?
Astronauts inside the International Space Station experience a sensation of weightlessness due to the constant free-fall around Earth. This is because the spacecraft and everything inside it are in a state of continuous motion, falling towards Earth while also moving forward at a high speed, creating a feeling of weightlessness.
Why do you not feel weightless if flying in a large airplane at a high altitute but if you were in an orbiting spacecraft you would constantly feel weightless?
In an airplane, you are still affected by Earth's gravity as the plane is flying against the pull of gravity, creating lift and keeping you pressed down towards the floor. In an orbiting spacecraft, you are in free fall around Earth, so you and the spacecraft are falling towards Earth at the same rate hence you experience weightlessness.
How does a particle accelerator engine work to propel spacecraft at high speeds?
A particle accelerator engine propels spacecraft at high speeds by using electromagnetic fields to accelerate charged particles to very high velocities. These particles are then expelled from the spacecraft at high speeds, creating thrust that propels the spacecraft forward.
When are astronauts in free fall?
Astronauts are in free fall when they are in a spacecraft that is orbiting Earth or another celestial body. In this state, both the spacecraft and the astronauts inside are falling towards the planet due to gravity but also moving forward at a high speed, creating a continuous state of free fall. This results in the sensation of weightlessness for the astronauts, as they are in a constant state of falling around the Earth rather than towards it.
Which explains why astronauts seem weightless in orbit?
Astronauts seem weightless in orbit because they are in a state of free fall, along with their spacecraft. As the spacecraft moves forward at high speed, it simultaneously falls toward Earth due to gravity. However, because it's also moving horizontally, it keeps missing Earth, creating a continuous free-fall loop. This condition results in a sensation of weightlessness for the astronauts inside.
High resolution images of Phoebe an outer satellite of the planet Saturn were obtained by which spacecraft?
High resolution images of Phoebe, an outer satellite of Saturn, were obtained by the Cassini spacecraft. Cassini conducted a close flyby of Phoebe in June 2004, capturing detailed images and data of this irregular satellite before moving on to explore the main Saturnian moons.
Why do orbiting spacecrafts seem weightless?
Orbiting spacecraft appear weightless because they are in free fall towards Earth while simultaneously moving forward at a high velocity. This state of free fall creates a condition known as microgravity, where both the spacecraft and its occupants are falling together at the same rate, resulting in the sensation of weightlessness. Essentially, they are continuously falling around the Earth rather than straight down, creating the illusion of floating.
What is a suborbital stay?
A suborbital stay refers to a brief journey into space that reaches the edge of space but does not achieve orbital velocity. This means the spacecraft ascends to a high altitude, typically above 100 kilometers (the Kármán line), allowing passengers to experience a few minutes of weightlessness and see the curvature of the Earth. However, the spacecraft then descends back to Earth without entering a stable orbit. Suborbital flights are often conducted for research, tourism, or testing purposes.
How is salvia divinorum detectable in military?
As of Apr 2011, it's not detectable in the military unless you're an idiot and smoke/chew it in public or upload videos of you getting high onto Youtube.
What is the part of the spacecraft that protects from high temperatures of re entry?
The heat shield is the part of the spacecraft that protects it from the high temperatures experienced during re-entry into the Earth's atmosphere. It is designed to withstand the intense heat generated by friction as the spacecraft re-enters the atmosphere at high speeds.
