Meanings of experimental tube in English

For the sake of distinction, I call this tube the experimental tube.

Soon afterwards a second cloud was formed five inches farther down the experimental tube.

Not so, however, when a well-mixed and highly attenuated vapour fills the experimental tube.

This was the result all round the experimental tube.

The electric lamp L placed at the end of the experimental tube furnishes the necessary beam.

Charged with vapour, it finally passes into the experimental tube, where it is submitted to examination.

The experimental tube s s' being exhausted, a cock at the end s' is turned carefully on.

The quantity of mixed air and vapour within the experimental tube could of course be regulated at pleasure.

To form, "within an experimental tube, a bit of more perfect sky than the sky itself!"

The experimental tube was filled in the laboratory, covered with a black cloth, and carried into the partially darkened room.

State of experimental tube

When it was permitted to enter the experimental tube unmixed with air or any other gas, the effect was substantially the same.

As regards the glass of the experimental tube, and the air within the tube, the beam employed in these experiments was perfectly cold.

The power of the electric beam to reveal the existence of anything within the experimental tube, or the impurities of the tube itself, is extraordinary.

When, previous to entering the experimental tube, the beam was caused to pass through a red glass, the effect was greatly weakened, but not extinguished.