Science and technology №19 (1976)

1. "A well instead of a quarry."

Explosions in the quarry.

An excavator loads ore into a dump truck.

Scientists of the Research Institute of Mining and Chemical Raw Materials, led by Professor V.J.Arens, are discussing a new mining method.

Model tests.

Industrial implementation of the new method.

Drilling a well.

2. "Discovery No. 98".

Laboratory of the Leningrad Institute of Physics and Technology named after A.F. Ioffe.

The use of new material in telescope lenses.

X-ray room.

3."Protects "boverin".

Potato field.

A Colorado potato beetle on a potato leaf.

Laboratory.

The fungus that destroys the Colorado potato beetle is under a microscope.

Pilot industrial production of the mushroom.

4. "Thinner than a spider's web."

View of the Trinity-Sergius Lavra.

A sheet of gold leaf.

The process of making gold leaf.

Rolling mill.

The operator is at the console.

The restorer is at work.