The study of gravitational waves contributes greatly to our understanding of the universe.

In a state of weightlessness, objects float freely.

He lost everything.

She is planning a date with her current boyfriend.

My boyfriend gave me a gift.

Everyone was surprised by the news.

The transmission of this car is very smooth.

This transporter is designed to carry luggage efficiently.

This experimental device is used to create new substances.

He is making a Rube Goldberg machine at home.