Can space be compressed? I find it interesting that space can be expanded, inflated or curved but
not compressed
. The confusion comes from the comparison of space to a fluid, and fluids cannot generally be compressed.
Can the universe compress?
A more specific theory called “Big Bounce” proposes that the universe could collapse to the state where it began and then initiate another Big Bang
, so in this way the universe would last forever, but would pass through phases of expansion (Big Bang) and contraction (Big Crunch).
Can you compress air in space?
Space vehicles carry liquid oxygen and liquid nitrogen in pressurized tanks that will rely on an air compressor to help regulate
. Compressors can also help maintain the flow of these gases out of their tanks. They are combined at the proper rate and pressure using an internal cabin pressurization system.
How stiff is space?
It turns out that space-time is
very stiff
, very resilient. But it can, and does, yield to stress. That’s fortunate, because without a little bit of warping there’d be no stars or planets, and we’d not be here to celebrate Einstein’s wonderful insights.
What things Cannot be compressed?
Solids are held in fixed positions, they can only vibrate. Because the particles can not move, solids have a definite shape and volume, and can’t flow.
Because the particles are already packed closely together, solids can’t easily be compressed.
How likely is the Big Rip?
The “Big Rip”
Of course, since the death of our own Sun is not expected until about 5 billion years from now, the new estimate might seem alarmingly short term; but, in reality, the team has just shown that
the cosmic apocalypse will certainly occur no earlier than that time
.
Is there an edge to space?
As far as we can tell,
there is no edge to the universe
. Space spreads out infinitely in all directions. Furthermore, galaxies fill all of the space through-out the entire infinite universe. This conclusion is reached by logically combining two observations.
Do pumps work in space?
At the gas station, pumping fuel with no bubbles is no problem, but
it certainly is in the microgravity environment of space
. The fourth and final series of the Capillary Channel Flow (CCF) experiments on the International Space Station (ISS), which began in August 2014, has come to an end.
How long does an oxygen tank last in space?
In the spacesuit we breathe pure oxygen and consume about 50 litres per hour, so under normal conditions each tank will last
over 16 hours
. Exhaled carbon dioxide is removed by a lithium ion filter and fresh oxygen is released into the suit to compensate for the resulting pressure drop.
Can water be compressed?
The compressibility of liquids
Water is essentially incompressible, especially under normal conditions
. Yet, in industrial applications water can be tremendously compressed and used to do things like cut through metal.
Can we break space?
Are we stronger in space?
Due to the lack of gravity in space, astronauts experience a decrease in muscle mass and bone density. Without having to work against the force of gravity to support ourselves,
our bones and muscles begin to weaken and deteriorate while in space.
What is stronger space or gravity?
So, how strong is space?
It’s as strong as gravity
. When we lift a heavy object, it takes effort because we’re pulling it against the curvature of space. When we drop it and let it fall, it rushes toward the ground because space is telling it to do so.
Can plasma be compressed?
Plasma compression can lead to the generation of electromagnetic fields that distort the particle orbits
and introduce new features beyond the purview of the MHD framework, such as ambipolar electric fields, unequal plasma drifts and currents among species, strong spatial and velocity gradients in gyroscale layers …
Can everything be compressed?
Under special relativity
nothing can be incompressible
: consider any object of nonzero size and finite mass in its rest frame; when you apply a force to it on one side it will start moving. If it were completely incompressible, the other end would start moving simultaneously.
Are all particles moving?
Particles in all states of matter are in constant motion
and this is very rapid at room temperature. A rise in temperature increases the kinetic energy and speed of particles; it does not weaken the forces between them. The particles in solids vibrate about fixed positions; even at very low temperatures.
Will the universe be reborn?
The universe could bounce through its own demise and emerge unscathed. A new “big bounce” model shows how the universe could shrink to a point and grow again, using just the cosmic ingredients we know about now.
How long until the universe ends?
22 billion years
in the future is the earliest possible end of the Universe in the Big Rip scenario, assuming a model of dark energy with w = −1.5. False vacuum decay may occur in 20 to 30 billion years if the Higgs field is metastable.
Can dark energy destroy the universe?
The universe could be ripped apart by dark energy if its influence steadily increases
. Eventually there would be nothing left: no particles, not even space itself.
How cold is space?
The Cosmic Background Explorer (COBE) satellite has refined temperature measurements taken way back in 1964. According to data from the Cosmic Background Explorer (COBE) satellite, the temperature of space is
2.725K
(2.725 degrees above absolute zero).
Is there color in space?
Because space is a near-perfect vacuum — meaning it has exceedingly few particles — there’s virtually nothing in the space between stars and planets to scatter light to our eyes. And
with no light reaching the eyes, they see black
.
Is the space infinite?
The observable universe is finite in that it hasn’t existed forever
. It extends 46 billion light years in every direction from us. (While our universe is 13.8 billion years old, the observable universe reaches further since the universe is expanding).
Can you create suction in space?
Space is a vacuum, and there’s no atmosphere, and no atmospheric pressure. Because there’s no atmosphere,
there’s no outside pressure to create suction
. So, despite their usefulness to us on earth, suction cups can’t help astronauts in space.
What if we pump air into space?
If you were to release air into this vacuum,
it would very quickly diffuse outwards- forever
. Soon the air molecules, mostly nitrogen and oxygen, would have spread out so much (because outer space is so big), that you wouldn’t notice them, and the pressure would not change.
Do hydraulic systems work in space?
So,
hydraulics not only work in space
, they currently play an essential role in the operation of space vehicles and are critical to missions.
How much does a space suit cost?
Insider reports an estimated price of
$15 million to $22 million per unit
for the spacesuit made in 1974 — and that’s not accounting for inflation in the decades since, which would push the price up to around $150 million today.
How long can you survive on the moon?
Short answer: You can stay on the Moon
as long as you have a safe place to live, and as long as you keep getting resupplies from Earth
. Long answer: The longest anyone has stayed on the Moon so far is 74 hours, 59 minutes, 38 seconds. This was during the Apollo 17 mission in 1972.
Can astronauts eat in their spacesuits?
Eating.
There is a slot in the hard upper torso (HUT) portion of the EMU for a rice paper-covered fruit and cereal bar
. The bar is designed so that the astronaut can take a bite and pull the remainder up.
Can sand be compressed?
Can you compress oxygen?
Well if you compress oxygen enough it liquifies, and the density of liquid oxygen is about 1140 kg/m3. This makes the spacing between oxygen molecules about 0.35nm. This spacing is about the same as the size of the O2 molecules so
it’s hard to compress liquid oxygen
.
What Colour is water?
The water is in fact
not colorless
; even pure water is not colorless, but has a slight blue tint to it, best seen when looking through a long column of water. The blueness in water is not caused by the scattering of light, which is responsible for the sky being blue.
Can air be turned into a solid?
What will happen if we compress air?
The combination law explains what happens to air when it’s compressed into a smaller volume. It tells us that when air is compressed,
the air’s pressure and temperature increase as the volume of the space containing air decreases
. By pushing air into a smaller space, we force it to become hotter and more pressurized.
