In fact, the force of gravity does act on objects in the ISS although they appear to float freely, as they would in deep space in the complete absence of gravity.

Artificial gravity can be created using a centripetal force. A centripetal force directed towards the center of the turn is required for any object to move in a circular path. In the context of a rotating space station it is the normal force provided by the spacecraft’s hull that acts as centripetal force.

When the station spins, centrifugal force acts to pull the inhabitants to the outside. This process could be used to simulate gravity. Technically, rotation produces the same effect as gravity because it produces a force (called the centrifugal force) just like gravity produces a force.

They envisioned a rotating wheel with a diameter of 76 meters (250 feet). The 3-deck wheel would revolve at 3 RPM to provide artificial one-third gravity.

Actually building an Elysium-like space station would require some major advances in humanity’s ability to live in space for an extended period of time and it might not be able to happen in 150 years, Uhran said. Nuclear propulsion could be a viable possibility eventually, but the idea isn’t ready for prime time yet.

Why doesn’t the International Space Station rotate to create artificial gravity like stations in the movies? Science-fiction space stations simulate gravity by rotating. The International Space Station doesn’t spin because it’s used for low-gravity research.

Poop is vacuumed into garbage bags which are put into airtight containers. Astronauts also put toilet paper, wipes and gloves – gloves help keep everything clean – in the containers too.

The better news is that there is no science that says that gravity control is impossible. First, we do know that gravity and electromagnetism are linked phenomena. Another way is through new theories from quantum mechanics that link gravity and inertia to something called “vacuum fluctuations.”

In the 20th century, Newton’s model was replaced by general relativity where gravity is not a force but the result of the geometry of spacetime. Under general relativity, anti-gravity is impossible except under contrived circumstances.

In a vacuum, gravity causes all objects to fall at the same rate. The mass of the object does not matter. If a person drops a hammer and a feather, air will make the feather fall more slowly. The spacecraft, its crew and any objects aboard are all falling toward but around Earth.

Thomas Townsend Brown

The opposite of gravity is called normal force, which is denoted by “R” or “N”. According to Newton’s 3rd law every action has an equal & opposite reaction.

They proposed that gravity is actually made of quantum particles, which they called “gravitons.” Anywhere there is gravity, there would be gravitons: on earth, in solar systems, and most importantly in the miniscule infant universe where quantum fluctuations of gravitons sprung up, bending pockets of this tiny space- …

So what makes gravity different? The answer seems to lie with quantum field theory. The particles that transmit the strong, weak and electromagnetic forces have various types of charge, such as electric or colour charge. “The strong nuclear force is attractive at some distances and repulsive at others.”

As of yet, no technology exists to neutralize the pull of gravity. The best way to approximate the feeling of weightlessness on Earth is to ride onboard a plane flying in parabolic arcs that mimic the shape of Saint Louis’s Gateway Arch.

The strong nuclear force, also called the strong nuclear interaction, is the strongest of the four fundamental forces of nature. It’s 6 thousand trillion trillion trillion (that’s 39 zeroes after 6!) times stronger than the force of gravity, according to the HyperPhysics website.

Actually, gravity is the weakest of the four fundamental forces. Ordered from strongest to weakest, the forces are 1) the strong nuclear force, 2) the electromagnetic force, 3) the weak nuclear force, and 4) gravity.

The strongest material in the universe may be the whimsically named “nuclear pasta.” You can find this substance in the crust of neutron stars. This amazing material is super-dense, and is 10 billion times harder to break than steel.

Now astronomers have spotted a bizarre star that may prove to be one of the rarest objects ever, with maybe as few as five or six of them in the galaxy. The object in question is known as J005311, located in the constellation Cassiopeia about 10,000 light-years from Earth.

(PhysOrg.com) — Currently, diamond is regarded to be the hardest known material in the world. But by considering large compressive pressures under indenters, scientists have calculated that a material called wurtzite boron nitride (w-BN) has a greater indentation strength than diamond.

Titanium is not stronger than a diamond. In terms of hardness, Titanium is not harder than a diamond either. The only advantage titanium has over steel is that it is a much lighter material. When compared to diamond, however, titanium does not come close in strength or hardness.

Titanium Appearance and Durability. In terms of durability, titanium is much harder than platinum, and does not scratch, damage or lose shape easily. This is also why resizing a titanium ring is generally not possible. Platinum has always been valued for its luster and beauty.