Science and technology № 4 (1971)

1. In the piggy bank of innovators.

A working machine.

Replacement knives for the milling cutter.

A woman performs diamond finishing of knives.

Engineers of the factory "Fraser" Vorobyov and Kabaev invented a semi-automatic device for the machine.

Drawing of the device.

Discussion of the idea in the public design bureau.

A device for finishing knives in operation.

2. Bacteria in powder.

Pseudomonas bacteria (photos).

A scientist looks at photos of bacteria.

A huge bottle of microorganisms.

Experiments at the Kirkhinstein Institute of Microbiology.

Fast freezing of bacteria.

Frozen bacteria are placed in a vacuum chamber.

The powder is taken out of the vacuum chamber.

The powder is diluted in water.

The aqueous suspension of the drug is sown on the nutrient medium with a thin glass tube.

A petri dish with the multiplying bacteria.

Wheat field.

3. Return of the voice.

A patient at a doctor's appointment.

The patient is awakened after anesthesia.

A. T. Ryabchenko receives a patient.

Respiratory gymnastics classes.

A man and a woman walk along a snow-covered alley.

4. When life is near...

A scientific vessel at sea.

Explosion in the sea.

The instruments noted the tremor of the earth's layers.

Animation scheme of wave propagation during an explosion in rocks of different densities.

Fish killed in the explosion.

Preparation for testing the gas explosion chamber.

The blast chamber is lowered to a predetermined depth.

Cartoon diagram of the blast chamber operation.

A net with an unharmed fish is lifted on board.