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.
When something is unmoving, it is not moving. A statue is usually unmoving, even if it is moving slightly.
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.
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 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.
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.
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.
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.
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.
To annihilate something is to completely destroy it. If you annihilate a city, you completely destroy it.