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In space, rockets zoom around with no air to push against. ... Rockets and engines in space behave according to Isaac Newton's third law of motion: Every action produces an equal and opposite reaction. When a rocket shoots fuel out one end, this propels the rocket forward — no air is required.
- Why rocket can fly in space?
- Why is there no air in space?
- Can you have a fire in space?
- How is thrust created in space?
- Who created universe?
- Does space have gravity?
- Has anyone died in space?
- What happens if u smoke in space?
- Do guns work in space?
- What does space smell like?
- How cold is space?
- How does rocket fuel burn in space?
- Which fuel is used in rocket?
- Who created the God?
- How did time start?
- What was before the universe?
Why rocket can fly in space?
In a similar manner, a rocket moves in space because the gases are given momentum as they are expelled by the rocket engine. ... This thrust depends upon the speed of the exhaust gases and the mass of gas being expelled each second, sometimes called the burn rate in pounds of fuel per second.
Why is there no air in space?
This is because there is no air in space – it is a vacuum. Sound waves cannot travel through a vacuum. 'Outer space' begins about 100 km above the Earth, where the shell of air around our planet disappears. ... The vast gaps between the stars and planets are filled with huge amounts of thinly spread gas and dust.
Can you have a fire in space?
Fires can't start in space itself because there is no oxygen – or indeed anything else – in a vacuum. Yet inside the confines of spacecraft, and freed from gravity, flames behave in strange and beautiful ways. They burn at cooler temperatures, in unfamiliar shapes and are powered by unusual chemistry.
How is thrust created in space?
Thrust is generated by the propulsion system of the rocket through the application of Newton's third law of motion; For every action there is an equal and opposite re-action. ... The working fluid is expelled from the engine in one direction and the thrust force is applied to the engine in the opposite direction.
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.
Does space have gravity?
Some people think that there is no gravity in space. In fact, a small amount of gravity can be found everywhere in space. ... Gravity, however, does become weaker with distance. It is possible for a spacecraft to go far enough from Earth that a person inside would feel very little gravity.
Has anyone died in space?
A total of 18 people have lost their lives either while in space or in preparation for a space mission, in four separate incidents. Given the risks involved in space flight, this number is surprisingly low. ... The remaining four fatalities during spaceflight were all cosmonauts from the Soviet Union.
What happens if u smoke in space?
Practically speaking, sparking up a fire in the oxygen-rich environment of a space station could result in hungry balls of flame spreading in every direction that there's fuel to burn. (Scientists and stoners can agree: That's a serious buzzkill.)
Do guns work in space?
Fires can't burn in the oxygen-free vacuum of space, but guns can shoot. Modern ammunition contains its own oxidizer, a chemical that will trigger the explosion of gunpowder, and thus the firing of a bullet, wherever you are in the universe. No atmospheric oxygen required.
What does space smell like?
As it turns out, several of the astronauts that have gone space-walking have reported a distinct odor at exactly this moment. ... Folks have said space smells like hot metal and seared meats.
How cold is space?
Hot things move quickly, cold things very slowly. If atoms come to a complete stop, they are at absolute zero. Space is just above that, at an average temperature of 2.7 Kelvin (about minus 455 degrees Fahrenheit).
How does rocket fuel burn in space?
Since there is no air and space, rockets need to take oxygen with them into space. Inside the rocket's engine, fuel and oxidizers are ignited in the combustion chamber, creating hot, expanding gases. ... Since the fuel is burning, exhaust is released out the bottom.
Which fuel is used in rocket?
Hydrogen -- a light and extremely powerful rocket propellant -- has the lowest molecular weight of any known substance and burns with extreme intensity (5,500°F).
Who created the God?
We ask, "If all things have a creator, then who created God?" Actually, only created things have a creator, so it's improper to lump God with his creation. God has revealed himself to us in the Bible as having always existed. Atheists counter that there is no reason to assume the universe was created.
How did time start?
According to the general theory of relativity, space, or the universe, emerged in the Big Bang some 13.7 billion years ago. Before that, all matter was packed into an extremely tiny dot. ... All matter would shrink into a tiny dot again, which would end the concept of time as we know it.
What was before the universe?
The Universe has not existed forever. It was born. Around 13.82 billion years ago, matter, energy, space – and time – erupted into being in a fireball called the Big Bang. It expanded and, from the cooling debris, there congealed galaxies – islands of stars of which our Milky Way is one among about two trillion.
