Energy can be converted into mass
, a single photon can be converted to en electron positron pair in theory. The reverse is not always possible because the electromagnetic energy is not equivalent to mass.
Is matter still being created?
Matter can change form through physical and chemical changes, but through any of these changes,
matter is conserved
. The same amount of matter exists before and after the change—none is created or destroyed. This concept is called the Law of Conservation of Mass.
Can we create matter from electricity?
To manufacture matter in a way that adheres to the first law of thermodynamics, you have to convert energy
Can space be created?
No
. And nor is energy. Energy is the one thing we can neither create nor destroy, and it seems to be intimately related to what space is. But nevertheless the stress-ball does get bigger as the pressure reduces, so it’s reasonable to say space is “created”.
Has matter ever been created?
Because of momentum conservation laws, the creation of a pair of fermions (matter particles) out of a single photon cannot occur. However, matter creation is allowed by these laws when in the presence of another particle (another boson, or even a fermion) which can share the primary photon’s momentum.
Can space be broken?
No
. And nor is energy. Energy is the one thing we can neither create nor destroy, and it seems to be intimately related to what space is. But nevertheless the stress-ball does get bigger as the pressure reduces, so it’s reasonable to say space is “created”.
Does space ever end?
Many think it’s likely you would just keep passing galaxies in every direction, forever. In that case, the universe would be infinite,
with no end
. … Scientists now consider it unlikely the universe has an end – a region where the galaxies stop or where there would be a barrier of some kind marking the end of space.
How fast is space expanding?
This means that for every megaparsec — 3.3 million light years, or 3 billion trillion kilometers — from Earth, the universe is expanding an extra
73.3 ±2.5 kilometers per second
. The average from the three other techniques is 73.5 ±1.4 km/sec/Mpc.
Can humans make matter?
To manufacture matter in a way that adheres to the first law of thermodynamics, you have to convert energy
Are humans made of matter Yes or no?
About 99 percent of your body is made up of atoms of hydrogen, carbon, nitrogen and oxygen. You also contain much smaller amounts of the other elements that are essential for life. … The hydrogen atoms in you were produced in the big bang, and the carbon, nitrogen and oxygen atoms were made in burning stars.
Who created universe?
Many religious persons, including many scientists, hold that
God
created the universe and the various processes driving physical and biological evolution and that these processes then resulted in the creation of galaxies, our solar system, and life on Earth.
Can the fabric of space be ripped?
According to Einstein’s general relativity,
it is impossible to tear the fabric of space
. … Black holes are another example of space stretched to its limit, and there is a strong experimental basis for believing that black holes exist.
What happens when you reach the end of space?
It will expand forever;
the galaxies within groups and clusters will merge together to form a giant super-galaxy
; the individual super-galaxies will accelerate away from one another; the stars will all die or get sucked into supermassive black holes; and then the stellar corpses will get ejected while the black holes …
How did Einstein view space-time?
Essentially, Einstein thought space and time were
intertwined in an infinite “fabric
,” like an outstretched blanket. A massive object such as the Sun bends the spacetime blanket with its gravity, such that light no longer travels in a straight line as it passes by the Sun.
Has any astronaut been lost in space?
We’ve
lost only 18 people in space
—including 14 NASA astronauts—since humankind first took to strapping ourselves to rockets. … Today’s astronauts travel to space by way of the Russian Soyuz, then spend a few months on the International Space Station.
Can the universe end?
Astronomers once thought the universe could collapse in a Big Crunch
