It is reported that North Korea has conducted another nuclear bomb test.

He is looking for a proving ground to test his new theory.

He conducted a thought experiment to solve a problem in physics.

The central processing unit of this computer is very fast.

Neurotransmitters are responsible for transmitting information between nerve cells.

Chemotransmitters play an important role in the transmission of information between nerve cells.

This speech synthesizer generates very high-quality voices.

Sufficient caution is necessary when handling radioactive materials.

It is reported that North Korea has conducted another underground nuclear test.

He is an expert in experimental psychology.