Science and technology № 2 (1970)

1. Nitrogen and steel.

Laboratory.

Steel under the microscope.

V.M.Berejiani in the laboratory of the Institute of Metallurgy of the Georgian Academy of Sciences.

Alloying of steel with nitrogen (animation).

Taking a metal sample.

Comparison of ordinary and nitrogenous steel (slots under a microscope).

Testing of samples.

2. The ball on the stream.

Launch of the weather balloon.

The process of manufacturing probe balls.

Tear tests.

3. Ultrasonic welding.

Pins for limb surgery.

Experiments on bone fusion using ultrasound.

Tools.

Experiment on a rabbit.

Operation.

Guinea pigs in cages.

4. The brand of the company.

The workshop of the plant.

Emblems of famous factories.

Artists behind the development of company logos.

Emblems of young industrial enterprises.

Records of the company "Melody" on the shelves.

People on the street.