Wormholes Explained – Breaking Spacetime

Important Vocabulary Words From The Video


When something is unmoving, it is not moving. A statue is usually unmoving, even if it is moving slightly.

  • The statue was very unmoving, even in the wind.
  • The water was very unmoving, even when the waves were crashing against it.

Theorized is a verb meaning to say that something is probably true. You might theorize about what might have happened in the past, or what might happen in the future.

  • The police theorized that the suspect was involved in the crime.
  • The scientist theorized that the new vaccine is safe.

A traversable object is one that you can walk or move on top of. A road, a bridge, and a sidewalk are all examples of traversable objects.

  • The bridge is not traversable because it's not tall enough.
  • The sidewalk is traversable, but the road is not.

The billionth is a number that is very large. It's equal to 1,000,000,000. This number is so large that it's impossible to say it with words.

  • The billionth baby was born this week.

A trillionth of something is a very small amount. To say that something is a trillionth of something is to say that it is very, very small.

  • The car is a trillionth of a mile away.
  • The number of stars in the sky is a trillionth of a million.

A supermassive black hole is a very large hole in the center of a galaxy. They are so large that they can suck in entire stars and galaxies.

  • The supermassive black hole is located in the center of the galaxy.
  • The supermassive black hole is so large that it can suck in entire stars and galaxies.

To prop something is to support it with something. You might prop a door open with a stick so that the wind can't close it.

  • The books were propped up against the wall to make them easier to read.
  • The furniture was propped up with wooden beams to keep it from collapsing.

Antiparticles are particles that are the exact opposite of the particles that they are opposites of. For example, an antiparticle of a proton is a neutron.

  • There are a lot of antiparticles of the atom, because it is so important for the universe.

To annihilate something is to completely destroy it. If you annihilate a city, you completely destroy it.

  • The army annihilated the city in just a few hours.
  • The bomb completely annihilated the building.