Want to know everything № 137 (1981)

1.

A tree with Mandarin fruit.

Grapefruits on a tree.

A woman grafts a branch of another tree on a tree.

Photo By O. Y. Schmidt.

Branch with grapefruit, grafted by O. Schmidt.

A branch grafted onto this tree.

Gagarins.

A branch grafted by P. and E. Robson.

Tourists at the tree of friendship.

Souvenirs left by visitors.

2.

Rescue tug "Jaguar".

Radio operator's cabin.

The Navigator marks on the map the point in the ocean where the distress signal came from.

Fire on the ship.

The Jaguar, covered by a water umbrella, approaches the fire.

The fire hydrants is destroyed.

The diver puts on a suit.

The diver is lowered under the water.

The Jaguar is coming to the rescue.

3.

Foundry.

Making the mold the old way.

Automatic mold casting machine.

Forms on the conveyor.

Pouring metal into molds.

Machine-cast parts.

4.

Pond.

Floating beetle.

An icy crust covered the pond.

The beetle collects air bubbles from under the icy roof.

The floating beetle goes into hibernation.