The Universe could be finite and closed, regardless of its curvature. If you traveled far enough in one direction, which only means traveling in one direction for long enough,
you’ll eventually return to your starting point
.
Can you travel in a straight line in space?
Objects in space follow the laws or rules of physics, just like objects on Earth do. Things in space have inertia. That is,
they travel in a straight line unless there is a force that makes them stop or change
.
Does everything in space travel in the same direction?
They have their own little discs and therefore
they’re going to be travelling in the same direction
. So, in a perfect scenario you’d have a star in the middle rotating in one direction.
Can you go downward in space?
In space,
there is no “up” or “down.”
That can mess with the human brain and affect the way people move and think in space. An investigation on the International Space Station seeks to understand how the brain changes in space and ways to deal with those changes.
Does space have a bottom?
Does space have a floor?
Space has no floor
. However, it’s not really an endless pit, either, because gravity doesn’t pull in one direction. It pulls toward objects that have mass.
Does a straight line go on forever?
A line is as wide as a point, infinitely thin, having an infinite number of points, (in a straight row),
extending forever in both the directions
.
Why are there no straight lines in space?
Vedant Laddha said that rays of light in outer space are straight lines. But sun, stars, planets and other massive bodies curve the space.
Astronomers can identify black holes by observing how light changes its direction deviating from the straight line
. Therefore nothing is perfect.
Which direction of time travel is possible?
Einstein’s calculations suggest it’s possible for an object in our universe to travel through space and time in a
circular direction
, eventually ending up at a point on its journey where it’s been before – a path called a closed time-like curve.
Does space have a smell?
Astronaut Thomas Jones said it “
carries a distinct odor of ozone, a faint acrid smell
…a little like gunpowder, sulfurous.” Tony Antonelli, another space-walker, said space “definitely has a smell that’s different than anything else.” A gentleman named Don Pettit was a bit more verbose on the topic: “Each time, when I …
Is there sound in space?
No, you cannot hear any sounds in near-empty regions of space
. Sound travels through the vibration of atoms and molecules in a medium (such as air or water). In space, where there is no air, sound has no way to travel.
Where does space end?
It extends
about 20 miles (32 kilometers) above the Earth
. Floating around the atmosphere is a mixture of molecules – tiny bits of air so small you take in billions of them every time you breathe.
Can we ever reach the speed of light?
We can never reach the speed of light
. Or, more accurately, we can never reach the speed of light in a vacuum. That is, the ultimate cosmic speed limit, of 299,792,458 m/s is unattainable for massive particles, and simultaneously is the speed that all massless particles must travel at.
Can you travel to the end of the Earth?
The simple answer is,
theoretically, yes
. First, let us ignore friction, the rotation of the earth, and other complications, and focus on the case of a hole or tunnel entering the earth at one point, going straight through its center, and coming back to the surface at the opposite side of the planet.
Does light travel through space?
Like all forms of electromagnetic waves,
light can travel through empty space
, as well as through matter. Light can be absorbed. Absorbed light energy is converted into some other form, such as thermal or heat energy.
Can you tell if your upside down in space?
The signals from an astronaut’s body in space go haywire in weightlessness. The inner ear reports that it is falling, but the eyes show that nothing is moving. As fluid shifts to the head, the brain usually interprets this extra pressure as a sign it is upside down – but
in space there is no up or down
.
Does space have a floor?
Space has no floor
. However, it’s not really an endless pit, either, because gravity doesn’t pull in one direction. It pulls toward objects that have mass.
How far can you go up in space?
In the 1900s, Hungarian physicist Theodore von Kármán determined the boundary to be around 50 miles up, or roughly 80 kilometers above sea level. Today, though, the Kármán line is set at what NOAA calls “an imaginary boundary” that’s
62 miles up
, or roughly a hundred kilometers above sea level.
Is there a ceiling in space?
It’s all relative. Inside the International Space Station,
the ceiling might as well be the floor
. The walls might as well be the ceilings. It’s enough to make your head spin.
What’s the gravity of a black hole?
The black hole would have
the same gravity as the sun
. Earth and the other planets would orbit the black hole as they orbit the sun now.
What is at the top of space?
The Space Needle
is an observation tower in Seattle, Washington, United States.
Can you go around the universe?
Thanks to dark energy and the accelerated expansion of the Universe,
it’s physically impossible to even reach all the way to the edge of today’s observable Universe
; we can only get a third of the way there at maximum.
Where two points meet is called?
A point where two or more line segments meet is called vertex. Mathematics.
Are two lines that meet at a point?
Two or more lines that meet at a point are called
intersecting lines
.
Do lines exist in nature?
laser light is slightly curved, as light is bent by the Earth’s gravitational field. But if we relax our definition to ‘something that looks straight to the human eye’, then
we can find plenty of straight lines in nature
– rock strata, tree trunks, the edges of crystals, strands of spider silk.
Is there a perfect straight line?
No straight line exists anywhere in the universe, ever
.
Are straight lines straight?
| 1. What is a Straight Line? | 6. Frequently Asked Questions(FAQs) |
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