The gases are formed as ions and start to conduct electrical current.

After that time anyone who had breathed the gas would start to come around.

At that moment a steel shutter slammed down behind them and gas started to pour into the chamber.

"At that moment, the gas started to be pumped in."

A gas works was built in 1853 and gas started to take over from oil as the principle form of street lighting.

But she said that could be because the gas had already started leaving his bloodstream.

Kavkaztransgaz, the company responsible for the repairs, announced that gas had started to flow again on Sunday morning.

The types can be distinguished by their response when gas starts to flow.

And then, being more experienced now, he found the gas can and started spraying.

Then a green gas started to waft into the room.